COMPUTER SLIDES 2.pdf

It includes all io and secondary storage devices some

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It includes all I/O and secondary storage devices. Some of them are named as; Input and Output devices Processor Memory Storage devices Designed by Dr. Ahmad Jalal (Air University)
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3.1 Hardware Designed by Dr. Ahmad Jalal (Air University)
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3.2 Software Set of instructions that tell a system what to do. - Application Software, - System Software Device Drivers are System Or Application Software? Designed by Dr. Ahmad Jalal (Air University)
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3.3 Data The material provided to the device for processing and produce a useful information is called “Data.” Basically the input part provides Data to the system. It can be of any type: text, voice, pointer movement etc. Designed by Dr. Ahmad Jalal (Air University)
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3.3 Data (Types of Data) There are 3 types of data to be entered in the computer. 1. Alphabetic data :- - Capital letters from A-Z, and small letters from a-z. 2. Numeric data :- - Decimal numbers from 0-9, decimal point notations. 3. Alphanumeric data :- - Alphabetic, numeric and special characters/symbols. Designed by Dr. Ahmad Jalal (Air University)
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3.4 Users (Personnel) The people who interact with the system are “Users”. We usually instruct according to the requirement of the user, so the users are the most important factor in building a system.
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  • Fall '19
  • Decimal, Computer program, Dr. Ahmad Jalal

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