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Computers and computer systems
Computers and processors are ubiquitous in everyday life, and they're not only found in...
Computers and processors are ubiquitous in everyday life, and they're not only found in your PC. This unit introduces the different parts of computer systems and their use of binary code. Using the examples of kitchen scales, a digital camera and a computer artwork the unit, with the help of flowcharts, discusses how computers process data and instructions .
After studying this unit you will:
- know what all the terms highlighted in bold in the text mean;
- know the fundamental hardware components that make up a computer’s hardware and the role of each of these components;
- know the difference between an operating system and an application program, and what each is used for in a computer;
- be able to describe some examples of computers and state the effect that the use of computer technology has had on some common products;
- be able to identify the principal components of a given computer system and draw a diagram after the style of Figures 6 and 12 in this unit to represent the data flows between them.
- Learning Outcomes
- 1 Computers and processors: introduction
- 2 Computers and computer systems
- 3 Some facts about processors
- 4 Representing data and instructions inside a computer
- 5 Examples of computers
- 6 A look to the future
- 7 Computer programs
- Current section: Acknowledgements
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Figure 1 ENIAC Computer. Photo © Science Photo Library
Rozin, D. ‘Wooden Mirror’, 2001, IEEE Spectrum, March 2001, p.29. Copyright © 2001 IEEE. Reproduced, with permission, from IEEE Spectrum, March 2001
All other materials included in this unit are derived from content originated at the Open University.
This is an extract from an Open University course which is no longer available to new students. If you found this interesting you could explore more free Computing courses or view the range of currently available OU Computing courses.
Copyright & revisions
Originally published: Thursday, 17th October 2013
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