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Speed

Since all the operations of a computer are caused by electrical pulses and since electricity travels at the speed of light. Computers too can perform innumerable operations in just one second . The processing speed of a computer is generally measured in nanoseconds one nanosecond, which is equal to one billionth of a second. By the time an average person takes to read the contents of this page the earliest model of the IBM microcomputer will add together a million numbers and still have time to spare. You can imagine what would be the speed of the latest models of computers running 100 times faster. Computers have very large storage capacity. the contents of around two hundred sheets of A4size paper can be stored on a email disk which is not even half storage cabinets can be stored in a device. Famous references works like the encyclopedia Britannica and oxford dictionary of English occupy many large shelves in libraries but today they are stored in a optical disks that we are less in itself and weight compared to an LP record. While this in itself is impressive , computers also provide very quick and easy access to all the data . typically a word can be located in an electronic dictionary of more that 100,000 words in under a minute.

Things To Know About Computers

The computer is defined as an electronic device with the ability to accept user supplied with data and instructions. To store them and perform mathematical and logical operations to execute the instructions. to output the results according to user specifications. To transfer the data, images and sound through telephone lines or cables at a very fast rate.In other words , you supply to the computer , the data to be processes and the instructions to process the data with. the computer remembers both the instructions , does the processing when asked to , and gives us the results in the specified form. Data may be defined as a collection of facts, observations or occurrences in the form of text , images, or sounds. since a raw collection , by itself, may not be meaningful, it has to be processed computers are data processing machines which process data and provide meaningful , it has ti be processed . Computers are data processing machines which process data and provide meaningful information. Computers are originally invented to act as fast calculating machines. Butt to use the computers of today as merely number cruncing machines , would amount to gross ignorance of their versatility and an under –utilization of their capabilities

How To Get Start With Computers

From their beginners in the scientific laboratories and in research establishments, computers have evolved become essential for modern business and industry. Today their presence is left in all walks of life. Making passenger reservations for the railways and airline, processing students marks, forecasting the weather, producing movies and music for entertainment, helping hospitals and doctors to render better medicare to patients, Monitor and run all kinds of plants like power plants etc. They are even invading homes where they are used as a TV,fax,telephone, answering machine, video games, etc all in one. The effects are being felt all around you, especially in our office environment where apart from just processing information thy are also being used communications. So the question that arises in your mind is what is a computer?