Flashcards
flash cards
Cards in this deck (5)
- 1RAMRandom access memory
some data needs to be permanently held in memory, even when the , machine is switched off.
- 2ROMRead Only memory
ROM is a form of permanent of storage while RAM is a form of temporary storage. ROM is a non-volatile memory while RAM is a volatile memory.
- 3HertzOne cycle per second = 1 Hertz (Hz) = 1 instruction carried out each second
1 Kilohertz (kHz) = 1000 cycles per second
1 Megahertz (MHz) = 1,000,000 cycles per second
1 Gigahertz (GHz) = 1,000,000,000 (1 Billion) cycles per second
- 4Starting up a computerWhen you switch on a computer, a small program held in ROM called the bootstrap loader is automatically executed
The program performs some self-tests, and loads the operating system into memory
- 5Hard disk DriveA hard disk drive is a non-volatile computer storage device containing magnetic disks or platters rotating at high speeds.
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- Flashcards on flash cards , created by Gabriella Boyd on 27/01/2020.
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- Gabriella Boyd
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