Information vs Data
-information as a concept has a diversity of meanings, from everyday usage to technical settings.
Generally speaking, the concept of information is closely related to notions of constraints,
communication, control, data, form, instruction, knowledge, meaning, mental stimulus, pattern, perception, and representation.
-data are pieces of information that represents the qualitative or quantitative attributes of a variable or set of variables.
Computer Storage vs Computer Data Storage
-computer storage; memory, components, devices and media that retain digital computer data used for computing for some interval of time.
Any data storage device; that records(stores) or retrieves (reads) information(data) from any medium itself.
-computer data storage, often called storage or memory, refers to computer components, devices, and recording media that retain digital data used for computing for some interval of time.
Operating System vs Computer System
-operating system(commonly abbreviated to either os or o/s) is an interface between hardware and user; it is responsible for the management and coordination of activities and the sharing of the resources of the computer.
-computer system - A complete, working computer. The computer system includes not only the computer, but also any software and peripheral devices that are necessary to make the computer function. Every computer system, for example, requires an operating system.
Primary Storage
1. RAM -Random Access Memory
-has no exact order
2. ROM
3. Cache Memory - Buffer
4. Virtual Memory - Extended memory
- Emulate the RAM
Secondary Storage
1. Hard Disk Drive
2. Flash Drive
3. Floppy Disk
4. Compact Disc
5. Digital Video Disc
Tertiary Memory
1. Zip Drive
2. External Drive
Saturday, June 20, 2009
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