mouse computer

Posted on 4th February 2012 in Computer

The computer mouse is a common pointing device, popularized by its inclusion as standard equipment with the Apple Macintosh. With the rise in popularity of graphical user interfaces in MS-DOS; UNIX, and OS/2, use of mice is growing throughout the personal computer and workstation worlds. The basic features of a mouse are a casing with a flat bottom, designed to be gripped by one hand; one or more buttons on the top; a multidirectional detection device (usually a ball) on the bottom; and a cable connecting the mouse to the computer. By moving the mouse on a surface (such as a desk), the user controls an on-screen cursor. A mouse is a relative pointing device because there are no defined limits to the mouse’s movement and because its placement on a surface does not map directly to a specific screen location. To select items or choose commands on the screen, the user presses one of the mouse’s buttons, producing a “mouse click.”

 

The computer mouse is a common pointing device, popularized by its inclusion as standard equipment with the Apple Macintosh.  Read more...

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Computer Science

Posted on 30th January 2012 in Computer

In 1958, Chaim Pekeris completed a landmark project in computer science. As a physicist at the Weizmann Institute of Technology in Israel, he become fascinated with the relatively new science of quantum mechanics and its potential to explain from first principles the behaviour of atoms.

There was a problem however. The equation developed by Schrodinger that could do the job was too complex for mere mortals to handle. Using it to determine the electronic energy levels of a even a lowly helium atom was seemingly impossible.

Chaim had an idea, however: why not exploit the incipient field of computer science to do the job.

Today, Christoph Koutschan and Doron Zeilberger analyse the work he carried out over several years and compare it to the approach that they would take to the problem today. It makes for interesting reading.

Chaim’s task was monumental.

He first had to persuade the Wiezmann Institute and a technical committee including Einstein and Von Neumann, to build a computer. Einstein proved hard to persuade but was eventually won over by Von Neumann.

WEIZAC, Israel’s first electronic computer was built between 1954 and 1954. According to Wikipedia, WEIZAC was an asynchronous computer operating on 40-bit words. Instructions consisted of 20-bits: an 8-bit instruction code and 12-bits for addressing. For a memory it had a magnetic drum that could store 1,024 words.

Today you’d get more processing power out of a washing machine.  Read more...

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Online Computer Stores in India

Posted on 24th January 2012 in Computer

Article by Mamta Papneja

Online shopping is an easy and comfortable way of shopping for a large range of products. With the passage of time, more and more people prefer to make purchases online through shopping sites and with the help of free classifieds. Recent statistics have shown that some of the most popular products sold online are computers. When searching for the right computer to buy, one can go to online computer stores. With the help of online computer store,one can compare computers of all the brands along with the price and specifications. One can find computer of popular brands like Acer,Dell,Compaq,Toshiba and many more easily through online computer store.

Online computer or mobile store india provides different products with different brands and provide reviews on those products that provide valuable insights about the product and are often very useful for the consumers. These reviews are useful for comparing different products listed on the site. Online computer stores help the consumers to decide which product one should buy by providing detailed information about the product.Online computer stores describe the products for sale with text, photos and multimedia files.

Online computer stores also allow the customers to offer feedback and complaints that is more likely to be taken into consideration. The best part about shopping for computers from online computer store is that one has a lot to choose from, compounded by the fact that looking for a particular product is made easier by the search interface.One can get a better bargain through online computer store. One will find all the latest and popular accessories including Storage devices, Printers, Headphones, Speakers, UPS, Web cams, and much more to enhance the computer in the best possible way considering the budget of the buyer.  Read more...

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Download free of worth on the internet Satellite tv computer software – the right way to acquire very best on the internet tv System

Posted on 21st January 2012 in Cable and Satellite TV

Article by Amod White

Satellite tv for PC for free of worth is acknowledged like a brand brand new technology which broadcasts information for the internet. The only problem that is sometimes required will be to obtain trustworthy and amazing best quality satellite pc computer software onto your computer. The satellite free of worth on the internet pc computer software is developed to assemble most in the free of worth world stations into just one portal with their links.

The generally free of worth on the internet purposes are this type of which they have an very simple to take advantage of system bar and interface. All just one should do subsequent set up will be to click for the united states they desire to sit back and watch purposes from after which find the exact station.

This is acknowledged like a relatively current advancement and businesses are nonetheless attempting to excellent their softwares to possess as several stations as feasible while preserving amazing best quality pics and sound. Most in the on the internet softwares possess a defective image and seem while other don’t deliver. There are nonetheless some extremely handful of on the internet companies that are amazing and extremely hard to arrive throughout some occasions among the the a tremendous amount of generally fake softwares.  Read more...

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What are Server computer, client computers and computer network?

Posted on 16th January 2012 in Computer

Article by James Madison

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Computer parts and accessories the lifeline of a computer

Posted on 14th January 2012 in Computer

Article by Aditi Malhotra

A computer has become a necessity in everyday life. The popularity of the internet and the ease of communicating through it have increased the use of computers for professional as well as personal needs. From filling online forms for a school/ college admission to applying for a job, a computer is must have for all. A branded desktop fitted with the latest and genuine software is the first choice of consumers. However, it is very important to know about the parts and configuration of the computer that distinguishes an average computer from a high performance device.

The brain of a computer is the CPU or central processing unit. It controls the processes and information stored in the computer. Each part of the computer is controlled by the CPU. Computer CPU parts consist of motherboards, processors, printed circuit boards (PCBs), hard disk and random access memory (RAM). All these components have different functions that determine the speed, precision of operation, quality and reliability of a computer. There is a wide range of assembled computers available with Intel and AMD leading the market in processors. The price of CPU varies according to the specifications of the processor and the kind of computer hardware fitted in the cabinet.  Read more...

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