Modern Computer Systems - an Overview. In this lecture we discuss the following material: what makes up a computer system the internals of a computer software (makes the computer useable) various types of computers. Covering Unit 1 of the text by Norton. The Parts of a Computer System.
Covering Unit 1 of the text by Norton
- What is a Computer?
A computer is an electronic device used to process data.
– How Memory is Measured
Unit Approx. Value Actual Value
Kilobyte (KB) 1,000 1,024
Megabyte (MB) 1,000,000 1,048,576
Gigabyte (GB) 1,000,000,000 1,073,741,824
Terabyte (TB) 1,000,000,000,000 1,099,511,627,776
Input and Output Devices
What is Software?
Word processing programs Spreadsheet software
Database management Presentation programs
Graphics programs Networking software
Web design tools and browsers Internet applications
Communications programs Utilities
Entertainment and education Multimedia authoring
- Mainframe Computers
Microcomputers, or Personal Computers