1 - ICS103 Programming in C Lecture 1: Overview of...

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ICS103 Programming in C Lecture 1: Overview of Computers & Programming
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2 Outline Overview of Computers Hardware Software Computer Languages Software Development Method Pseudo Code and Flowcharts
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3 Computers Computers receive, store, process, and output information. Computer can deal with numbers, text, images, graphics, and sound. Computers are worthless without programming. Programming Languages allow us to write programs that tell the computer what to do and thus provide a way to communicate with computers. Programs are then converted to machine language (0 and 1) so the computer can understand it.
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4 Hardware is the equipment used to perform the necessary computations. i.e. CPU, monitor, keyboard, mouse, printer, speakers etc. Software consists of the programs that enable us to solve problems with a computer by providing it with a list of instructions to follow i.e. Word, Internet Explorer, Linux, Windows etc.
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5 Computer Hardware Main Memory RAM - Random Access Memory - Memory that can be accessed in any order (as opposed to sequential access memory), volatile. ROM - Read Only Memory - Memory that cannot be written to, no-volatile. Secondary Memory - Hard disks, floppy disks, zip disks, CDs and DVDs. Central Processing Unit - Coordinates all computer operations and perform arithmetic and logical operations on data. Computer Networks – Computers that are linked together can communicate with each other. WAN, LAN, MAN, Wireless- LAN.
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6 Components of a Computer
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7 Memory Memory Cell (MC) – An individual storage location in memory. Address of a MC- the relative position of a memory cell in the main memory. Content of a MC – Information stored in the memory cell. e.g
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This note was uploaded on 05/09/2010 for the course ICS 103 taught by Professor Baleh during the Spring '10 term at Abilene Christian University.

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1 - ICS103 Programming in C Lecture 1: Overview of...

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