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Versions of Windows

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WINDOWS VERSIONS Windows 1.0 In 1985 the first version of windows was a milestone product because it allowed PC users to switch from the MS-DOS method of typing commands at the C prompt. Use a mouse to point and click their way through functions, such as starting applications, in the operating system. Windows 1.0 Screen  Windows 2.0 In 1987 with the second version of Windows, Microsoft took advantage of - The improved Processing speed of the Intel 286 Processor. Expanded Memory. Inter-application communication capabilities using Dynamic Data Exchange (DDE). Windows 2.0 featured support for VGA graphics standard, Allowed users to: - Overlap Windows. -Control Screen layout. -Use Keyboard. -Combinations to move rapidly through Windows Operations. Windows 2.0 Screen Layout Windows 3.0                  In 1990, Microsoft's first mainstream computing platform offered 32 bit...
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Operating System

OPERATING SYSTEM An Operating system is a program that acts as an interface between the user of a computer and computer hardware. The purpose of an operating system is to provide an environment in which user can execute programs in a convenient and efficient manner. It is the first program loaded into the computer's memory after the computer is switched on. Popular operating systems include MS-DOS, OS/2. Windows and UNIX. The operating system is an important component of the computer system, because it sets the standards for the application programs that run on it. All programs must be written in a manner, which is recognized by the operating system. An Operating System is like a soul of a computer, Without an Operating System  a computer considered as dead, It has no use. Functions of Operating System 1. Memory Management Function An Operating System manages the primary memory of the system. It allocates the memory, on the request of a process, which is being run at ...
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History Of the Computer

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History Of the Computer                              What is computer? Computer is an electronic device which can perform arithmetic and logical operations together. In other word, a computer is an electronic data processing device. It can read and write, compute and compare, store, and process large volume of data. It works at high speed, gives out accurate and reliable results. It works on stored program concept. The word computer comes from Latin word “compute” that means to calculate, to count. Computers were developed from calculators as the need arose for more complex and scientific calculations. Origin of the Computer:          Abacus :      The history of computers starts out about 2000 years ago, at the birth of the  abacus , a wooden rack holding two horizontal wires with beads strung on them. When these beads are mov...
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