mindmap 1.2 memory

mindmap 1.2 memory

1. RAM-Random Access Memory

   • ROM-Read Only Memory

2. Disk thrashing- when a computers virtual memory subsystem is in a constant state of paging

3. Paging- moving from virtual memory and ram to processor

4. Back up- to take a copy of no data and software

5. Volatile- gets emptied when the power is turned off

6. Firmware- permanent software programmed into ROM

7. Non volatile- doesn’t loose data when turned off

8. SRAM- a type of memory chip which is faster and requires less power than dynamic memory

9. DRAM - a memory chip that depends upon an applied voltage to keep the stored data

10. Instructions - detailed information about how something should be done or operated

11. Data is prewritten and comes with the computer would be to do with ROM

12. The computer need to be on to retain data is to do with RAM

13. Things stored in RAM are programs currently in use and data currently in use

14. Things stored in RAM are programs currently in use and data currently in use

15. Virtual memory- simulated memory on the hard drive

    • Virtual memory is needed for if the ROM is full so then it lets more memry be saved

16. VMM (virtual memory manager) creates a file on the hard driveswapping or pagging.moves data between RAM and virtual memory