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Introduction To Computer, • The term ‘Computer’ is derived from the Latin, word ‘computare’, which means ‘ to calculate’., • A computer is an electronic device that, manipulates information or data according to, the set of instructions., • It has the ability to store, retrieve and process, data.

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Terminology of Computer, • Data:- unprocessed raw facts and figures, like, numbers, text on piece of paper, are known as, data., • Processing:- it is the sequnce of actions taken on, the data to convert it into information., • Information:- when data is processed,, organised, structured or presented in a given, context so as to useful, then it is called, information.

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Terminology of Computer, • Instruction:- It is a command given to a, computer in the computer language by the user., • Program:- it is a set of instruction given to a, computer in order to perform some task.

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Generation Of Computer, • A generation refers to the state of improvement, in the development of system., • Each generation of computer is characterized by, a major technological development that, fundamentally changed the way.

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Generations of computer, Generation, , First, , Second, , Third, , Fourth, , Fifth, , Years, , 1940-56, , 1956-63, , 1964-71, , 1971Present, , PresentBeyond, , Switching, Device, , Vacuum, Tubes, , Transistors, , Integrated, Circuits(ics), , Very Large, Scale, Integrated(V, LSI), , Super Large, Scale, Integrated, (SLSI) Chips, Or Bio Chips, , Speed, Measured, , Milli, Seconds, , Micro, Seconds, , Nano, Seconds, , Pico Seconds Pico Seconds, , Operating, System, , Batch, Operating, System, , Time, Sharing, System,, Multitasking, OS, , Real- Time, System, , Time, Sharing, Network,, GUI, Interface, , Applications, , Used For, Scientific, Purpose, (ENIAC,, , Used For, Commercial, Production, (NCR 304,, , Database, Management, System, (PDP-8,, , Distributed, Artificial, System( IBM Intelligence (, 4341, DEC, Robotics), 10), , Knowledge, Infromation, Processing, System

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