COMPSCI 1TA3 Lecture Notes - Synchronous Dynamic Random-Access Memory, Ddr3 Sdram

• School: McMaster University
• Department: Computer Science
• Course: COMPSCI 1TA3
• Professor: John Nakamura

Document Summary

Memory: a temporary holding place for data the cpu is going to manipulate, since memory is temporary, make backups of what you are working on (usually backup to your hard drive then a usb, memory is usually measured in nanoseconds (10e 9 seconds, hard drive milliseconds (10e 3 seconds, memory is broken up into 1 byte units, which have a unique address. Ram: ram (random access memory, often called main/primary memory, bigger than rom, the memory chips are attached to a circuit board, they are sometimes called simms (single inline memory module) or dimms (dual) Cache memory: similar to ram, but it is faster, static ram is often used for cache memory, the cpu will check the cache first for data, if not, it gets it from ram or also the hard drive, used to be kb size, now mb (e. g. 1mb cache, e. g.