01-Cairo-Introduction-What Is Computer System Essay

771 WordsDec 30, 20124 Pages
Introduction to Computers Introduction 1 Dr Osama: Introduction to Computers A World of Computers What is a computer? Ø computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. 2 Dr Osama: Introduction to Computers Why you learn introduction to Computers? Terms: that used to describe computers and its operation. Functions: Learn the functions of different parts of computer system. Uses: How to use a computer to produce the information or perform a task you need done. 3 Dr Osama: Introduction to Computers What is Computer system? 4 Dr Osama: Introduction to Computers What is Computer system? Computer system: is a combination of six elements a. Hardware (HW). b. Software (SW). c. Data / Information. d. Procedures. e. People (user/professional) f. communications 5 Dr Osama: Introduction to Computers What is Computer system? Hardware: Simply means the physical equipments. (without HW, the SW is useless.) Software: Is the term used to describe the instructions that tell the hardware how to perform tasks. Data / Information : Data: consists of the raw facts and ready to processed into information. Information: is summarized data or manipulated data or processed data. 6 Dr Osama: Introduction to Computers What is Computer system? DATA ® Information ® Knowledge ® Meta Knowledge. NB. Meta Knowledge is knowledge about knowledge. Meta K. 7 Dr Osama: Introduction to Computers What is Computer system? Procedures: Are description of how things are done, or steps for getting results. Procedures for computer system appears in documentation manuals (reference manual) which contain instructions, rules, and guide lines to follow when use hardware or software. 8 Dr Osama: Introduction to Computers What is Computer system? People: People

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