DISCOVERING COMPUTERS
- 2. WHAT IS A COMPUTER? According to the EDPM syllabus (2013) a computer maybe define as a electronic machine or device that accepts data, processes and produces information.
- 3. TYPES OF COMPUTERS Mainframe computer Minicomputer Microcomputer/Personal computer; desktop, tablet, palmtop…etc Super Computer
- 4. MAINFRAME Mainframe is very large in size and is an expensive computer capable of supporting hundreds or even thousands of users simultaneously. Mainframe executes many programs concurrently and supports many simultaneous execution of programs
- 5. MINICOMPUTER It is a midsize multi-processing system capable of supporting up to 250 users simultaneously.
- 6. MICROCOMPUTER/PERSONAL COMPUTER A personal computer (PC) can be defined as a small, relatively inexpensive computer designed for an individual user. PCs are based on the microprocessor technology that enables manufacturers to put an entire CPU on one chip.
- 7. SUPERCOMPUTER A supercomputer is the fastest, most powerful computer Fastest supercomputers are capable of processing more than one quadrillion instructions in a single second
- 8. ADVANTAGES AND DISADVANTAGES OF COMPUTER ADVANTAGES DISADVANTAGES Speed Violation of privacy Reliability Health Risks Consistency Public safety Storage Impact on labor force communication Impact on environment
- 9. THE END