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First Generation of computer

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The period of the first generation was from 1946-1955. In this generation used vacuum tubes as the basic components for memory and circuitry for central processing unit (CPU). ENIAC (Electrical Numerical Integrator And Computer) was first electronic computer developed in 1946 by Mauchley and Eckert in USA. This computer used high speed vacuum tube to process data, in this generation used machine code as a programming language. This machine was 30×18 feet long and weight 30 ton and cost $4 lakh dollar. Characteristics of the first generation computer Use of magnetic drums Use of vacuum tubes to make circuits Use of machine languages and symbols in instructions Use of punch cards as input/output devices Use of high electricity Very small reliable output Complex and expensive to maintain Huge in size and poor mobility Some computers of first generation ENIAC ...
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Elements of the Windows Desktop

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When you login a windows computer system, you will get dozens of applications, so you can choose any option of you requirements. The desktop contains many of the options have shortcut icon readily available on your computer screen. Examples: Start menu Icons Taskbar Notification Viewable toolbar Start menu It provides access to windows programs, documents, and information in the system. The following list down the options that appear after clicking on the start menu. Options Descriptions All programs All programs option displays all those programs, which are installed in your system. Log off It helps a user to log off the currently logged in user of the screen. Sleep It makes the system non-functional. ...
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Third Generation of Computer

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The period of the third generation was from 1965-1971. In this generation was used of IC (Integrated Circuits). IC reduced the price, size , use of electricity, etc. Third generation computers were used Keyboard, Mouse, and also used the operation system to improved a new level and high speed. Characteristics of the third generation computer Use of IC (Integrated Circuits) instead of transistors Use of magnetic storage device Use of mini-computers Use of monitor, keyboard, and line printers Use high-level programming languages Less expensive maintenance cost Less expensive than second generation Improved faster operations and more dependable Small size than second generation computer Some computers of third generation IBM 360 series IBM 370 IBM 168 TDC 316 Honeywell 6000 series PDP (Personal Data Processor)
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