erUNIT 1 INTRODUCTION TO COMPUTERS Structure 1.1 1.2 1.3 Introduction Objectives Introduction to Computers Why Computer? Evolution of Computers 1.3.1 The First Computer 1.3.2 Some Well Known Early Computers 1.3.3 Computer Generations 1.4 1.5 1.6 1.7 1.8 1.9 Components of a Computer Hardware vs Software System vs Applications Software Bits and Bytes Input and Output Devices RAM/ROM 1.10 Secondary Storage Devices 1.11 Summary 1.12 Answers to SAQs 1.1 INTRODUCTION This unit aims
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COMPUTER CONCEPTS NATIONAL ASSOCIATION FOR THE BLIND NEW DELHI Computer Concepts Hardware & software concepts explained for persons with low or no vision for the students of Intel Technology Training Lab at National Association for the Blind‚ New Delhi Produced and Published by National Association for the Blind Sector-5‚ R.K Puram‚ New Delhi E-mail: nab@vsnl.com First Edition October 2001 Reprint: February 2005 TABLE OF CONTENTS
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PRELIM COMPUTER What is a Computer? A computer is an electronic machine that can be programmed to accept data (input)‚ process it into useful information (output)‚ and store it in a storage device for future use Characteristics of a Computer •It’s a machine. •It is electronic. •It is automatic. •It can manipulate data. •It has memory •It has logical function Capabilities of a Computer • Speed • Accuracy • Repetitiveness • Storage • Programmable Limitations of a Computer • Cannot operate without
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Sister Zainab AP English 14 October 2014 Rhetorical Devices: The Scarlet Letter 1. Anaphora: repetition of the same word or groups of words at the beginnings of successive clauses. “…with the hot‚ midday sun burning down upon her face‚ and lighting up its shame; with the scarlet token of infamy on her breast; with the sin-born infant in her arms; with a whole people‚ drawn forth as to a festival…” (Pgs. 54-55) This is an example of the device anaphora because Hawthorne begins four consecutive clauses
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ELEMENTS OF COMPUTER SYSTEM Computer System Is a complete‚ working computer. The computer system includes not only the computer‚ but also any software and peripheral devices that are necessary to make the computer function. 1. Hardware 2.Software 3.Peopleware / Live ware HARDWARE It is best described as a device that is physically connected to your computer or something that can be physically touched. INPUT DEVICE –any device that allows the person to communicate information to the computer / gives
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assemble his computer . I`m thinking about that because I never handled and never try to assemble a computer but again I try.. that moment I finish to assemble the computer . After the day I realist to what I want in my future that is a computer programmer that is the thing that I also to encounter my fear. That give me a moment to find myself but if it`s difficult to be a programmer One day my mother told me to go to my aunt house. That day my aunt told me to assemble his computer . I`m thinking
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Computer System Introduction & Definitions — Computer is an electronic device that is used to solve various problems according to a set of instructions given to it — A computer is a programmable machine that receives input‚ stores and manipulates data‚ and provides output in a useful format Brief History of Computer — The first use of the word "computer" was recorded in 1613‚ referring to a person who carried out calculations‚ or computations‚ and word continued to be used in
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5 basic operations performed by computer system Inputting Storing Processing Outputting Controlling The internal structure of a computer looks like above: Input unit: Input unit links the external environment with the computer system. Data and instruction must be entered to the computer before performing any competition. Data or instructions can be entered through input devices eg. Key board‚ or any other input devices. Input unit transferred this data into binary coded in short input unit
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Today computers have been important factor to society because of the way they are used towards education‚ government‚ internet‚ and etc. Most of the people want to buy a computer to be able to us internet. With internet you could chat with people all over the world‚ research information‚ buy and order supplies‚ food‚ computers‚ movies‚ clothing‚ and etc‚ so having internet in computers is very helpful for many. Computers have been tremendously beneficial to the educational system since the style
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