Karteikarten
RAM, ROM and the need for virtual memory
Karten in diesem Stapel (8)
- 1What does RAM stand for?Random access memory
- 2What does ROM stand for?Read-only memory
- 3Define volatileWhen something loses its data when the electricity is turned off
- 4Describe the difference between RAM and ROM- Data can be written to RAM but not to ROM as it is read-only
- RAM is volatile and ROM is non volatile - 5Explain the need for ROM in a computer systemROM is memory that cannot be changed by a program or user. ROM retains its memory even after the computer is turned off.
- 6Describe the purpose of RAM in a computer systemProgram instructions and data currently being accessed by the CPU are stored in RAM
- 7Explain how the amount of RAM in a personal computer affects the performance of the computerThe greater the amount of RAM, the more instructions it can store. As such, it is less likely to need to load more instructions from the hard disk drive therefore speeding up the computers operation.
- 8Explain the need for virtual memoryWhen the main memory (RAM) is full, the operating system will store data on an area of the hard disk - the virtual memory