memory 1.3
- Created by: faiqa1331
- Created on: 26-09-18 12:10
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- memory 1.3
- random access memory (ram)
- ram in the main memory in the computer
- ram in volatile. this means that it requires power to retain its data
- you can read and write into ram
- ram is slower than the cpu cache but its way faster than secondary storage
- virtual memory
- when ram gets full, the data that isn't used a lot is moved to secondary storage
- virtual memory may be needed if there are too many applications open
- using virtual memory can make a computer slower when switching between applications
- volatility
- non-volatile
- this is permanent memory and it keeps its contents even when it has no power
- volatile
- non-volatile
- read only memory (rom)
- rom is non-volatile memory
- it can only be read not written it
- it contains instructions a computer needs to boot up. these are called bios
- random access memory (ram)
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