All-in-one Desktop PCs Keep It Simples

• Apple iMac 21.5-inch (Core i3)
• Lenovo Think Centre A70z
• Apple iMac 21.5-inch (Core 2 Duo)
• MSI Wind Top AE2220
• HP Pavilion All in One 200-5020
• Apple iMac 27-inch (Core i7)
• Lenovo Think Centre M90z
• Lenovo Idea Centre A300
• Lenovo Idea Centre B500
• Lenovo C315
• Gateway One ZX6900-01e
• Acer Aspire AZ5610-U9072

                  

Apple iMac 21.5-inch (Core i3)
 $1,199 direct

The Apple iMac 21.5-inch (Core i3) is the system that can convert your friend/relative/significant other into a Mac-faithful. It has a great design, stellar performance, and a pretty kickass price. For all these reasons and more, the Apple iMac 21.5-inch regains the Editors' Choice for midpriced all-in-one desktops.

 

Lenovo Think Centre A70z   
$797 list
      

The Lenovo Think Centre A70z can work as the primary PC in your business if you're the sole proprietor, or as the PC for your staff and receptionist. It's an all-in-one business PC that may make "more sense" than other consumer-grade alternatives, particularly if you need business features like a serial port.

Apple iMac 21.5-inch (Core 2 Duo)

$1,199 direct

The Apple iMac 21.5-inch (Core 2 Duo), the "baby brother" to the 27-inch iMac, is $500 less expensive, yet has much of same power. It slots easily into the niche between the cheap nettops and the expensive HDTV-replacement PCs: It's the all-in-one multimedia PC to buy if you need performance more than fancy features like touchscreens and HDTV inputs.

MSI Wind Top AE2220

$950 list

On paper, the MSI Wind Top AE2220 is definitely a challenger for the "best all-in-one desktop PC." It's a sub-$1,000 touchscreen-equipped desktop with plenty of HD media features. However, a few shortcomings keep it from scoring higher.

HP Pavilion All-in-one 200-5020
$780 list

The HP Pavilion All-in-one 200-5020 is well-designed and nicely-priced, but you'll have to accept a lot of bloatware and poor 3D performance.

Apple iMac 27-inch (Core i7)

$2,199 list

Apple drops a Nehalem-based Core i7 processor in their class-leading iMac 27-inch. It has a fairly hefty price tag, but backs it up with stellar performance and the high-quality design we've come to expect from the fruit company in Cupertino. The iMac (Core i7) is an easy Editors' Choice.

Lenovo Think Centre M90z

$1,119 direct

The Lenovo Think Centre M90z desktop is a conglomeration of innovative features, all mixed together to give you a very good all-in-one PC for business users. If you "get" or need touch computing in your business, this is the one to get.

Lenovo Idea Centre A300

$949 list

The Lenovo Idea Centre A300 is an all-in-one with a fashion-forward design that will fit any room's setting. This media center desktop has almost everything to fit your digital entertainment needs, but lacks a Blu-ray player to complete the package.

Lenovo Idea Centre B500

$1,399 direct

If you're looking for HD enjoyment, multimedia processing, and 3D power, the Lenovo Idea Centre B500 is the all-in-one PC to get. The addition of Blu-ray, Internet, and even an HDTV tuner, all provide you with the HD sources you want.

Lenovo C315

$849 list

The Lenovo C315 keeps the 20-inch all-in-one form factor and adds multi-touch support. As such, it's a contender for the video consuming, all-in-one PC aficionado. While it's compact and powerful enough for many users, its touch support adds to the system's price, and I'm not convinced it's quite worth it (yet).

Gateway One ZX6900-01e

$1,019.99 list

The Gateway One ZX6900-01e adds Blu-ray playback to a touchscreen all-in-one PC. It has Intel's Core i3 power to motor through multimedia tasks with ease, but a few drawbacks keep it from scoring higher.

Acer Aspire AZ5610-U9072

$900 list

Acer Aspire AZ5610-U9072 is a great PC for the whole family, whether you just want to quickly jump online for social networking or play games.

All-in-one Desktop PC

An all-in-one desktop is the perfect system for those with compact spaces or prefer a minimalist setup. We give you tips on finding one that fits your needs, and give you the lowdown on some of the hottest all-in-one desktops out there.

 

The all-in-one desktop PC is an interesting beast. They were born out of the desire for computer manufacturers to both simplify (setup and shipping) and emulate the "dumb terminal" look that computer experts would be comfortable with. There have been all-in-one PCs for almost as long as there have been desktop PCs: The Commodore PET, various flavors of TRS-80, the Compaq Portable, the Kaypro II, and the original Apple Macintosh. Take a monitor, put the PC internals in the same chassis or in the base, ship it with a keyboard, viola! Instant all-in-one PC.

All-in-one PCs fell out of favor for a while, since expandability was priority in the 1990s. Apple reenergized the all-in-one genre with its successful iMac line. Since then Apple has reemerged as one of the most powerful tech companies. Everyone and their silicon fabricator want to taste some of that success.

Back when the iMac first appeared in 1998, it was powered by a PowerPC chip; these days, Intel has become Apple's desktop and laptop chip supplier. You'll find CPUs from AMD and Intel in most U.S.-sold all-in-one PCs, from the power-saving AMD Athlon II Neo and Intel Atom all the way up to high-end multi-core CPUS like the AMD Phenom II and Intel's Core i7. Occasionally, PC makers will use notebook-class CPUs and motherboard chipsets in order to save power consumption and help keep their systems running cool (a hot PC is an unhappy PC).

How Much Should You Be Paying?

A decent dual-core CPU with integrated graphics in the all-in-one PC category comes at a lower price point, from $400 to under $800. Jump up to $800-$1,300 for dual-core processors, light 3D graphics, and higher resolution monitors. Above $1,300, you should expect multimedia features (Blu-ray, higher-end 3D, HDTV, quad core CPUs) and creature comforts (wireless keyboards, 802.11 a/b/g/n 2.4GHz/5GHz, and ambient lighting). Touchscreens are a hot property in the mid-range and high-end all-in-one systems, but they won't be a "must-have" feature for at least another year or two (if at all). As an aside, touch functionality is wonderful for the occasional interface with the computer (it's real neat swiping pictures out of a stack or zooming into a map). However, holding your arm out straight for Web surfing will get tiring fast; a wireless mouse is still a better interface when the screen is 2 to 4 feet in front of you. You really need a tablet or phone form factor for touch to work as a primary interface.

The Apple iMac 27-inch (Core i7) is, of course, one of the standard bearers for all-in-one PCs. However, systems like the Lenovo IdeaCentre A300 also espouse a design-forward chassis and are lust objects in their own right. Business users can confidently buy all-in-one PCs like the Apple iMac 21.5-inch (Core 2 Duo) or the Lenovo ThinkCentre M90z. Big box stores will stock systems like the HP Pavilion All-in-one 200-5020, Gateway One ZX6900, and Acer Aspire AZ5610.

Different Uses of Computers in Business

           Computers are used for all aspects of running a business. Computer use in a business enhances productivity and provides results that might not otherwise be possible. Businesses use computers to keep records, develop budgets and forecasts, prepare marketing documents, research and stay in contact with other employees and customers. Businesses should look at their operation and ensure that they are using their computers to the fullest extent.

 1.   Keep Records

Computer programs such as QuickBooks and other accounting programs allow businesses to keep detailed records. These programs track accounts payable, accounts receivable and sales. They also provide an easy and quick way for a business to send out invoices to customers and handle payroll functions. Back office productivity and accuracy can increase greatly when using an accounting program. 

2.  Budgeting and Forecasting

Computers can be used to prepare detailed budgets and corporate forecasts. Inexpensive accounting programs allow even people with limited computer knowledge to develop detailed budgets that will help keep the company on track. They can also be used to forecast future sales and business expansions. Spreadsheet programs such as Excel can also be used for budgeting and forecasting.

      3.   Prepare Marketing Documents

There are a wide variety of programs that allow businesses to easily prepare dynamic marketing documents. Adobe Photoshop provides many templates that users can manipulate to produce eye-catching custom marketing materials. These programs make it easy for people who do not have a creative background to prepare professional-looking documents quickly and painlessly.

      4.   Research

The Internet offers a tremendous amount of information that a business can use to maintain an edge. Businesses can use the Internet to research its competitors' products and prices by studying their websites. They can also get a glimpse into how customers view their own products by reading customer reviews on sites such as Amazon. When launching a new product a company can perform market research using online questionnaires and surveys.

      5.  Communication

One of the biggest benefits of the computer in the workplace is the enhanced communication they provide. Coworkers can easily communicate with each other through email. Customer service departments can use email and instant messaging services to communicate effectively with customers. Web conferencing provides a cheap alternative to meetings for companies. Instead of travelling to a meeting attendees can join a meeting from their office. Businesses can also use email and websites to advertise their products and services.

      6.  Tip

Updating computers regularly is vital to a business. Outdated computers can cause serious problems, crash often and reduce worker productivity. As technology evolves, the computing power needed to run-cutting edge computer programs increases. These new programs will often run poorly on out-of-date computers. As a result, in the long run the most cost-effective strategy is to keep your business' computers current.

Uses for Computers in Business

            Computers have become a requirement in the business industry. Computers easily complete duties that are tedious and timely for humans. The business uses of computers are extensive. Although many of the computer duties are not irreplaceable, business has become dependent on their accuracy and timeliness.

1. Accounting

Business success is dependent upon accuracy. Many businesses use accounting software and ledgering systems to ensure the accuracy of their financial status.

2. Customer Interaction

Computers now assist human call centers with answering customer questions, taking payments and providing general assistance. The automated voice systems are available with unrestricted hours and are always friendly.

3. Scheduling

Scheduling is of great importance to many businesses, especially businesses involved in manufacturing and deliveries. Scheduling systems allow businesses to ensure they are meeting their goals while being effecient.

4. Communication

Communication is most important in business. Computers provide businesses with a wide array of communication methods that include, but are not limited to, email, chat, web conferencing and VOIP.

5. Websites and Advertising

The combination of websites, advertising and marketing provide a swift means to vast business globalization. Websites make the company quickly available to everyone.

Samsung N130-13B 10.1-Inch Slate Blue Netbook

          The Samsung is an unusually solid netbook with good performance and doesn't look like a cheap kids toy. I've seen quite a few positive comments on this model and it offers a good mix of styling and performance. As with all netbooks it won't blow other computers away, but the price is right and the specifications balanced enough to give a good experience.

Here's some of the main features:

• 2.8lbs
• 10.1 inch screen
• 1024 x 600 resolution
• 1GB of memory
• 160GB hard drive
• Fast Ethernet
• Wireless 802.11b/g/n

The size of the screen is enough for a web browser, although it will be cramping some websites and they might need to be zoomed out for optimal viewing.

The Intel Atom processor is the stock specification for netbooks ever since it was first introduced so there are no surprises and no real performance differences between this and other netbooks.

The keyboard, often a tough point for those with larger hands, is about 90% the size of a standard keyboard and is big enough to use comfortably, albeit not for a full weeks work at the computer.

The outside of the netbook is robust and does well against scratches and abrasions.

1GB of memory will handle most web browsing needs. This will allow two or three programs to be open at the same time. Firefox with 15-20 tabs, Tweetdeck and an instant messaging client will handle just fine. Running one at a time will yield better results though.

I'm glad that 802.11n wireless networking is included. As netbooks are meant to be connected to the Internet mostly and do almost everything online, a decent network connection is pretty important. Speeding up the local connection, i.e. the wireless connection from the computer to the Internet router, makes the experience that much more seamless.

Other extras include audio input, audio output, built-in speakers, built-in webcam, built-in microphone, VGA port, and three USB ports.

I'm not drooling over netbooks as I once was, but I think this one would be high up on my list if I was planning on getting one. It hits does well where it needs to and looks good to boot. The $300 price is pretty tough to beat.

Computers in business - 1970 to 1980

            Computers had entered business, industry and trade in the 1960s, but it was at the beginning of the 1970s that this process gathered momentum. One reason for this was the great leap forward in microelectronics, which led to an enormous increase in performance coupled with far smaller, cheaper computer systems. The increase in the use of computers was accompanied by major technical, organizational and social change at the workplace, which caused existing business processes to be largely adapted to electronic data processing, resulting in rapid growth in requirements for new work qualifications in offices and in manufacturing.

               Companies first began to work with computer systems at the beginning of the 1960s. These systems were installed at computer centres. The operating costs of such a computer centre were so high that the systems had to run day and night to be profitable.

               It was only large companies that generated such large volumes of data. Accordingly, it was large banks and insurance companies that first set up computer centres. A small number of highly respected computer specialists worked there - programmers who wrote the software and operators who ran the systems. Data that had been recorded was processed there and returned to office staff as computer printouts.

                      With the development of data communications equipment, it was no longer necessary to install peripheral devices in computer centre locations. Terminals at office workers' desks made it possible to enter into a dialogue with the computer, i.e. to directly access the data. In 1965, IBM launched the System/360 mainframe on the market, and finally established itself as the world's leading computer supplier. From this point on, IBM set the standards.

               With the development of data communications equipment, it was no longer necessary to install peripheral devices in computer centre locations. Terminals at office workers' desks made it possible to enter into a dialogue with the computer, i.e. to directly access the data. In 1965, IBM launched the System/360 mainframe on the market, and finally established itself as the world's leading computer supplier. From this point on, IBM set the standards.

                 In the mid-1960s, a special approach to data processing was introduced. It was predominant in Germany, where the whole range of office computers was referred to as Mittlere Datentechnik, in English later dubbed mid-range systems. Various companies - many of them from the office machine industry, such as Kienzle and Philips, or newcomers like Nixdorf - launched special small office computers for commercial administration, tailored to meet end users' needs.

            At the beginning of the 1970s, numerous newly founded software houses in the USA and Europe discovered this market opening and satisfied the exploding demand for application programs by developing manufacturer-independent standard software.

              Minicomputers came onto the market in the USA at about the same time as office computers in Europe. The first was Digital Equipment Corporation's pdp-8, which was launched in 1965. These systems were the answer to the mainframes that had dominated the market in the USA until then, and were a great commercial success. In particular, scientists who wrote their own programs were keen on minicomputers, which made them independent of computer centres. Minicomputers and microcomputers quickly found their way from universities to the business world.

           As flexible, fast process-control computers, they were used in factories from the 1970s to plan, control and automate manufacturing processes. The increase in computer-controlled manufacturing technologies was motivated by the necessity to cut costs and to ensure more efficient, flexible and cheaper production. Computer-controlled robots initially became widespread in the automotive manufacturing sector in the early 1980s. About 60% of all computers were in use there, and replaced 20 to 26% of factory workers. From there, computers penetrated the whole world of industry.

Benefits of Using Computers in Education

                Computers are efficient classroom tools that can enhance education if used to benefit student learning and achievement. Integrating technology and education provides students with a global approach to learning and communicating.

1.   Significance

Computers function as a resource for teachers and students of inclusive classrooms, allowing for the diverse needs and varying ability levels of students to be met.

2.  Benefits
Educational computer games offer assisted instruction through entertaining audio-visual features that make drill and practice activities.

3.  Function
Computers can be used in a center rotation, providing differentiated instruction and tasks such as project research and creation for advanced students, remediation activities for students working below grade level, and language-learner software for ESL students.

4.   Features
Computers used in combination with Interactive Whiteboards, LCD projectors and hand-held student devices allow for student-directed learning centers, stimulating whole-class modeling and instruction, subject integration, and enhanced Internet research opportunities.

5.   Effects
 Computer software that correlates with curriculum provides teachers with ongoing student assessments and reports, creative approaches to structuring instruction, and flexibility in presenting information so students can benefit.

What are the advantages and the disadvantages of a mouse?

Advantages:
        A mouse works very well for navigating a graphical user interface, such as Windows or Mac. With additional buttons and a scroll wheel, increasingly complex functions can be done from a mouse. These include opening, closing and minimizing software; grouping, moving and deleting files; and even image editing with software like Photoshop. In my experience, a mouse is better for fine movements and adjustments than most of the alternatives.

Disadvantages:
              An external mouse requires space, making it nearly impossible to use on an airplane. A mechanical mouse needs to be cleaned regularly or it will get clogged with lint and dust. The cord on most mice can get hung up and drag, making the mouse difficult to use.

Benefits of Computer in Education

           Today, the use of computers is not restricted to only office desktops or laptops we see the use of computers all around us; be it microwave ovens, car engines, video games, telephones, watches, computers are being used in most of the appliances or gazettes that we use in our day to day living thereby making it the most important part of our lives. Education system is not an exception to the same.

             Over the past few years the growth of the computer industry has been quiet remarkable and today it is the fastest growing industry in our economy. Nowadays, many schools are equipped with computers for educating their students. Thereby making computers an integral part of education system. Teachers and professors use computers for teaching, giving presentations, assessing various data banks, maintaining database of students, communication in the form of e mails or chat, browsing the Internet and preparing students to have a competitive edge in the global job market. Computers have revolutionized the learning for students in a big way. They can watch various films on wild life, history, geography, science and encyclopedias with great sound and excellent picture quality and commentaries on Compact Disc's or DVD's.

             The use of computers and technology in education has changed the learning process of the people in several ways and helped them to enhance their education process in a very short period of time. Moreover Internet has changed the way people work by giving them an access to various information on any subject be it any product, research or any other technical information. It has also changed the way people use to communicate by overcoming hassles of the traditional mail or phone with the use of emails and chats or voice chats which are simple and very effective. Internet has also reduced the gap in the teaching process. Now with the use of internet we can have many online courses that are offered my teachers who are located across boundaries who give training through video conferencing thereby giving a personal touch to individuals who prefer to have a class room coaching but cannot afford to leave their current location.

             Thus through the use of computers schools, colleges and universities are making scientific, creative, and engineering advances to produce well qualified and highly skilled professionals.

The “Digital Roll” – A New Laptop Concept That Breaks The Mould

            Ask anyone what a laptop, a notebook, or a netbook looks like and the chances are they'll tell you it has a screen and a keypad and is sort of square shaped but maybe with rounded corners.

               Ask them to elaborate on differences between the various models and you are likely to hear about differences in thickness, whether it's light or heavy, and the sizes of the screens.

Source: Hao Hau

                 Some may come out and speak about fancy features like raised keyboards or multi card slots, data security maybe.

                Then you have those who would focus on the different colours and trims, whether it's glossy or matt what they are made of and so on.

                  The point I'm getting at here is that basically all laptops, no matter what you call them, follow the same basic bookish design with maybe a few added touches, features or specifications that differentiate them from the rest.

                 You would be pretty shocked if someone came out and said that a laptop is cylindrical or tube shaped and that it rolls up like a scroll. It might even cross your mind that they were completely mad or some alien creature from another planet.

               That just isn't an image the masses are likely to have in mind at all when you mention a laptop and yet that is exactly the design that computer scientist and designer Hao Hua has come up with.

               Ok so it's still at the conceptual stage and not a reality yet but what an exciting idea.

               According to Hao Hua the digital roll as he calls it is "the next generation laptop design". Personally, I can't wait.

             The laptop would have a flexible OLED screen, a roll-able keyboard and the straps double up as USB outlets.

             It even has a mouse and a webcam that you can attach to your wrist. This really is computing on the go at its best.

               Hao has even put a lot of thought into the cooling system which is equally as innovative as the rest of the design.

        

             I particularly like the thought that has gone into the in-between bit that allows you to check your emails quickly without unravelling the 'laptop' entirely.

              Are we likely to see it making an appearance on the streets any time soon? Unfortunately no! But you can bet that I for one will be waiting when it does.

New Dell Precision T Series Workstations With Up To 192GB RAM

                  Dell is ready to release three new T-series workstations, including T3500, T5500, and T7500. These computers offer up to 1.5TB of storage space, an eSATA port, DisplayPort connectors and are EnergyStar compliant. The first in the line up is the T3500 that will support up to 24GB RAM. The T5500 offers a higher RAM capacity at up to 72GB. Dual sport sockets will also be included to make it possible to use dual Intel Xeons. And finally, the T7500 supports up to 192GB RAM running at 1,066MHz or 1,333MHz. This model also features dual native Gen 2 PCIe graphics card slots with support for NVIDIA SLI tech. The T3500 is expected to cost $999 while the T5500 should be priced at $1,620. Sadly, there is no info on pricing for the T7500 so far. [Newlaunches]

Sleek New Dell Studio One 19 All-in-One Desktop PC

            The room-saving Dell Studio One 19 is the latest all-in-one PC computer to hit the scene. Not yet as popular as Netbooks, the "all-in-one" computer category is growing fast, and it's easy to see why. This new Dell model has a nice slim design made of aluminum, glass, and fabric and it would fit in just about anywhere without cramping your style. Let's not forget that the Studio One 19 also has a touch screen where you can access, view, and move photos, and manage your digital media content.

              The Dell Studio One 19 All-in-One Desktop PC comes in Solid Pure White, Tuscan Red, Navy Blue, Powder Pink and Charcoal, and will be available first in Japan on March 19 in select Japan retail outlets. Customers in other countries will have to wait until later this spring. Starting price: $699.

Dell Studio One 19 features:

Innovative Software from Dell

• Easy multi-touch photo editing, slideshow creation, playlist compilation, notes, and even web browsing.
  
• Unleash creativity with You Paint finger painting software.
  
• Record videos and upload directly to YouTube with the touch of a finger.
  
• Flick to Flickr - Upload photos to Flickr to share with family and friends.
  
• Create a musical masterpiece with the multi-touch percussion center.
  

Software is optional and works with multi-touch configurations only.

Power & performance:

• Intel® Celeron, Dual Core Celeron, Pentium Dual Core, Core 2 Duo, and Core 2 Quad Core Processor options
  
• Choice of nVidia GeForce 9200 or GeForce 9400 integrated graphics
  
• Up to 4GB dual channel memory
  
• Up to 750GB HDD
  
• Slot load Optical drive
  
• 7-in-1 media card reader, six USB ports
  
• Optional integrated wireless, web camera, Blu-ray Disc
  
• Optional multi-touch capability
  
• Optional facial recognition security (with webcam)
  

Advantages the uses computer in the classroom

       Provides opportunities for "active-learning" activities in the classroom. In an e-classroom, "passive-learning" approaches such as lecturing may still be a valid approach, but can frequently be best used to introduce basic concepts that are exercised with notebook-enhanced active-learning exercises. Active learning occurs when the student becomes more engaged with the course material. The one-on-one nature of computers and the highly interactive nature of modern software or Web sites enables a high level of engagement.

             Faculty can concentrate on developing teaching methods that foster understanding of material (application, reflection, testing etc.) as opposed to using classroom time for simply transferring "knowledge" from the teachers notes to the students notes. This assumes that the class notes, or supplemental learning materials are readily available (e.g. on a Web site) prior to the class.

         Students are able to develop communication skills within class. Although students have a habit of relying on a very informal writing style with Instant Messaging, the use of the notebook computer can be used to develop professional writing skills.

          Team-based projects can be worked on within the classroom, with increased supervision from the teacher. Instead of simply disseminating knowledge, faculty can become supervisors as they watch and learn from their own students. Teams frequently work best when their initial composition is arranged by the teacher and not self-selected by the students. Many excellent books on this subject can be found in the library and the LTC.

           Students form personal hands-on experiences of concepts that are difficult or impossible to mimic in a traditional classroom. In many disciplines data analysis and interpretation is an essential but difficult concept to exercise by any means other than by computer. Many new fields are possible only through the use of such technology.

              Technology-usage skills are developed in the students within a more professional environment offered by the classroom, that is not possible in typical student accommodations. Students currently have few opportunities to exercise their computer skills in any environment other than those frequented or populated by other students.

             Students become familiar with knowledge-management skills, necessary to survive in an increasingly knowledge-centered workplace. The presence of technology in the classroom reflects the dramatic rise in the availability of readily-accessible knowledge and communication tools online in the workplace. Faculty can share their discipline-specific uses of technology such as the use of online databases.

Using Computers as a Classroom Tool

Introduction

        How can you use a computer in class work that expands the function from the computer from a tool for word processing to a resource, a communication tool, and a notetaker as well?

How does the project work in the classroom? 

            The project requires the students to apply their academic knowledge and work both cooperatively and collaboratively in designing a genetically engineered product and presenting it in a classroom seminar.

             By placing the requirements, grading rubrics, and job descriptions on the Internet, the students were given a definite reason to use computers for a reason other than word processing. The web also allowed the students to access this information at any time of day and at any computer.

          The active links I included allowed me to guide the students in their choice of jobs and in the beginnings of their research. In class, we would talk about how to determine the validity of information on the web. They learned to evaluate, determining critically if the information was sound. Once they learned the basics, they were off on their own, searching the web, following links. They began to use the computer as a research tool.

How did students communicate with one another?

          As part of this project, each student was required to have an email account. They used email to communicate by email to me and to their group members. I taught my students how they could, while searching on the Internet, open their email account. When a student found material of interest on a website, they could copy and paste the web address and the text into a new mail message and they could email themselves the information. They learned to use the computer as a communication device and as a notetaker.

           Using the computer in a guided yet independent way helped many students. The quicker students tended to delve more deeply in research on their subject than on a traditional written assignment. Students, especially those who traditionally had difficulty completing assignments, did work online and the partial results - having emails of material they could put together for a paper and presentation, spurred them onto completion.

          The students learned business, they learned science, and they learned computer skills that took them far beyond the walls of classroom. The students learned that the freedom of the internet - that anyone can set up a website - is also the bane of the Internet because it required them to critically evaluate their sources, something they don't really need to do with books in a library.

The Difference Between Notebook and Desktop Memory

Desktop PC Memory (DIMM)

 

                   There are a large number of RAM types available for desktop computer systems. The most commonly used types today are DIMMs (Dual In-Line Memory Module) and these are the small circuit boards that holds memory chips. DIMMs are standard in desktop computers, and common types of DIMMs include the following;

SDRAM- Synchronous Dynamic Random Access Memory
          Short for Synchronous DRAM, this is a type of DRAM that synchronizes itself with the CPU's bus. SDRAM, until recently, was the memory standard for modern PCs. When looking at SDRAM The number following "PC" indicates the speed of the system's front side bus. (example: The PC100 SDRAM is designed for systems equipped with a 100 MHz front side bus.)

DDR SDRAM- Double Data Rate Synchronous Dynamic Random Access Memory
            Short for Double Data Rate-Synchronous DRAM, a type of SDRAM that supports data transfers on both edges of each clock cycle (the rising and falling edges), effectively doubling the memory chip's data throughput. DDR-SDRAM also consumes less power, which makes it well-suited to notebook computers. DDR-SDRAM is also called SDRAM II. and DDRAM. DDR-SDRAM (and subsequent DD2 and DD3) as well as RDRAM are the technologies which are replacing SDRAM.

DDR2 SDRAM-Double Data Rate Two(2) Synchronous Dynamic Random Access Memory
                 DDR2 SDRAM is the next step up from DDR SDRAM. DDR2 SDRAM offers new features and functions that enable higher clock and data rate operations. DDR2 transfers 64 bits of data twice every clock cycle. DDR2 SDRAM memory is not compatible with current DDR SDRAM memory slots.

DDR3-SDRAM - Double Data Rate Three(3) Synchronous Dynamic Random Access Memory
            The third generation of DDR-SDRAM that improves upon DDr2-SDRAM by offering reduced power consumption, a doubled pre-fetch buffer, and also offers more bandwidth because of its increased clock rate.

You're SO DIMM - Notebook/Laptop Memory Is Different

              Something you may encounter is that there are more notebook(or laptop computer) manufacturers, who use proprietary memory modules. However, most commonly supported by notebook manufacturers is the SO DIMM (Small Outline DIMM), which is a smaller version of the DIMM modules that are used in desktops.

              What differentiates the notebook RAM from desktop RAM is its form factor; that is, its physical size and its pin configuration. A full-size DIMM has 100, 168, 184, or 240 pins and is usually 4.5 to five inches in length. In contrast, a SO DIMM has 72, 100, 144, or 200 pins and is smaller - 2.5 to 3 inches. There is also SO RIMM, which is similar to SO DIMM, but like DIMM/RIMM, it uses Rambus, Inc. technology and also has a different pin count.

Webopedia Memory Category
Webopedia's terms listings and information about computer memory.

How To Install Memory
You have new memory for your computer. Now you have to install it. This chapter will guide you through the basics of memory module installation and refer you to resources that can help with problems.

How Stuff Works: RAM
Random access memory (RAM) is the best known form of computer memory. RAM is considered "random access" because you can access any memory cell directly if you know the row and column that intersect at that cell.

Installing Laptop RAM
It's not difficult to install memory into your laptop. In fact, it is a fairly straightforward process. Using a screwdriver and a little care you can speed your laptop or notebook up significantly.

How to Choose a Laptop or Notebook Computer

          Today's laptops are much more powerful than even the hottest desktop computers of yesterday. They're also lighter and much more stylish. Many people are opting out of desktop computers altogether and use a laptop for all their computer needs. If you're thinking of going this route, check out these shopping tips.

Difficulty: Moderate Instructions

1. Step 1

Read through How to Choose a Desktop Computer. The "Before you shop" points and most of "The basics" also apply when shopping for a laptop.

2. Step 2

Pick up the laptops at the store. (Ask to have them unlocked if necessary.) Choose one that feels sturdy, solid and not too heavy.

3. Step 3

Try the keyboard. Since you can't replace it (except with the exact same item), make sure you're comfortable with its touch and responsiveness. Test it on a desk and on your lap.

4. Step 4

Test the pointing device, track pad or track ball, the laptop alternatives to a mouse. Some of these can be hard to master. You'll be able to connect an external mouse, but the built-in device is more handy when you're mobile.

5. Step 5

Check if the computer's bottom gets uncomfortably hot when it's running--a problem if you actually use the laptop on your lap.

6. Step 6

Pay attention to screen size and resolution. Current liquid-crystal display (LCD) screens on laptops measure from 13 to 21 inches diagonally. Screen resolution may be as low as 800 x 600 pixels or as high as 1600 x 1200. The more pixels, the crisper the screen image. View the screen in a variety of settings: A screen that looks great in normal room lighting can look terrible in bright or dim light.

7. Step 7

Choose a laptop with at least two USB 2 connections and at least one Firewire (IEEE1394) connection. USB 2 and Firewire are very popular and fast ways of connecting iPods, digital cameras and some phones to computers.

8. Step 8

Check to see if the laptop has built in wireless capabilities, most do these days. A wireless network card (also called Wi-Fi or 802.11) will free you from having to be wired to your Internet connection (see How to Network Your Computers). Also, Bluetooth capability will let you share information wirelessly with other Bluetooth-equipped devices, such as your cell phone or personal digital assistant.

9. Step 9

Check to see if the laptop has a DVD Burner. That makes backing up documents, music files and pictures a snap because of the high capacity of the discs.

10. Step 10

Get an antitheft device. Hundreds of thousands of laptops are stolen every year. Look for cables that secure the laptop to a desk. Install software that disables a stolen laptop, or better yet, reports the laptop's location when it connects to the Internet.

Dell Studio XPS 16 is most powerful laptop

            Currently the most powerful laptop offered by Dell short of an Alienware, the Dell Studio XPS 16 is a sleek, performance-class machine. Recently, Dell refreshed the machine, adding Intel's new Core i-series processors and a more powerful ATI graphics card. However, depending on the selected options, it can also bear a hefty price tag.
Dell Home Systems$949.99

See all pricing for the Dell Studio XPS 16 (320GB HDD, 4GB)

Specifications:

• Obsidian Black
• 16" 1080p (1920x1080) RGBLED screen w/webcam
• Intel Core i7 720QM (1.6GHz/2.8GHz Turbo Mode, 6MB Intel Smart Cache)
• Microsoft Windows 7 Home Premium, 64-bit
• ATI Mobility Radeon HD 4670, 1GB
• 6GB DDR3, 1333MHz (4GB + 2GB)
• 500GB 7200RPM hard drive with freefall sensor (Seagate Momentus 7200.4/ST9500420ASG)
• Intel Wireless WiFi Link 5300AGN
• Slot-loading Blu-ray Rewritable drive
• 9-cell Li-ion battery (85Whr)
• Weight: 6.3 lbs (as listed on Dell website)
• Dimensions: 15.15" (W) x 10.02" (D) x 0.95"/1.34" (front/back H)
• MSRP: $2,124

                              The Studio XPS 16 starts at $949 for a base, 15.6" model. Unfortunately, getting the 16" RGDLED screen is a bit tricky lately, since many configurations do not seem to offer it. The other available 1080p screen is the 15.6" WLED LCD.

Build and Design:The Dell Studio XPS 16 is a study in contrasts: sleek but large, and stylish, but bulky. The silver trim and black gloss paint make it classy without being garish in the least. Unfortunately, since the finish is high gloss, it attracts fingerprints like crazy. In addition, oil from your hands (and anything else on them) rubs off on the finish and is transferred to the screen when you close it

             The build is mostly plastic (even the metallic-looking trim), but it is reasonably robust. It creaks a bit if you grab it by the sides, but it doesn't feel like it will fall apart. Some of the trim near the screen doesn't line up perfectly, and tends to put a tiny scratch at the very bottom of the screen (hard to see unless you really look for it). The hinges are quite strong, and the screen takes a bit of effort to open. Ripples show up on the screen if moderate to heavy pressure is applied to the lid, a consequence of having such a large screen. Being a 16" machine, the Studio XPS 16 has a bit of heft, necessitating the use of two hands to carry it.

Screen :This is quite simply the best screen I have ever seen, and it has spoiled me horribly. The native resolution is 1920 x 1080 (1080p, full HD) Color saturation is extremely high (maybe a bit too high, particularly for the reds), and the contrast is excellent. While the backlighting is ridiculously bright, it has the upside of keeping the screen usable even under bright indoor lighting.

Keyboard and Touchpad:The keys are fairly flat, with a ridged shape. This permits the keys to be spaced very closely together while keeping your fingers sufficiently spaced apart. The keys have a fairly short throw and are fairly quiet unless you strike them with a fair amount of force. Pressing very firmly on the keyboard yields no discernable flex. The Studio XPS 16 lacks a numpad (unlike my E1505, it is not even embedded in the middle of the keyboard and activated by the FN key), and the Home, PgDn, PgUp, End keys are positioned just to the right of the backspace and enter keys. A nice bonus is the backlighting, which has three settings (high, low, and off).

                   The Studio XPS 16 sports touch-activated media controls above the keyboard. Their white backlighting remains on regardless of the keyboard backlighting settings, but I found it tasteful. One nitpick is that I often hit the 'eject' button by mistake when attempting to press 'Delete.' The touchpad is almost completely smooth, with just a tiny bit of texture. The buttons require very little force to press, but are recessed enough to prevent accidental clicking. Like the keyboard, they make little noise when pressed.

Difference Between Laptop and Desktop Computer

           Computer is a important part of our life now. many years ago. we are often use desk computer for our life and work for promotion. and the latest few years, computer has developed from desk computer to laptop. and get more and more portable. but do you know what is the Difference between Laptop and Desktop computer?

           It's easier for a desktop computer to have a bigger memory and to hold more RAM than a laptop computer simply because there is more space available for the storage.

            The space in a desktop computer will often allow the user to choose almost unlimited accessories and options that a laptop computer just may not have the space to hold. Things like a top speed processor, the latest state of the art sound and graphics cards, extra ports for external linking and more than enough storage space for all of the programs, music and video clips that you'll ever need.

           The extra space also comes with one more big benefit that you don't often find with a laptop - the ability to easily upgrade. This means that you can keep your machine from becoming obsolete for much longer by continually adding the latest programs, components and accessories.

             The one glaring advantage a laptop computer holds over its desktop counter part is portability. If you have a job that requires you to travel, or if you're a student living in a closet sized dormitory with three others students, a laptop computer is practically a necessity. No matter how powerful or fast your desktop computer is, you can't unplug it, take it to the subway and finish writing your report while you travel.

                Despite the common misconception that all desktop computers are more powerful than all laptops, the laptop computers of today have much better technology in them than the laptops of yesterday. You will pay more for a supper powerful laptop than you will for the same caliber desktop, but then again, the lower price of the desktop won't help you on the go.

           I think the above illustrations tell you that both types of computer can be the best, depending on situation. The key isn't between choosing one over the other, it's in choosing the best computer of the type that you choose.

               You need to get online and do some research on the different brands of computers to find what the best and most reliable machines are. There are a slew of different manufacturers producing computers today, you need to find which manufacturer is producing the best reviewed computers of the type that you have determined that you need and base your decision on those facts.

              Buying a computer from a reputable and reliable manufacturer will ensure that you get a high quality machine. This is a piece of equipment that will be a big part of your life, hopefully, for years to come; you shouldn't look to get the cheapest price if it will mean that you are sacrificing quality. Never spend your hard earned money on a machine that has gotten a host of unfavorable reviews, or on a machine that you've never heard of.