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10719147
1.2 Memory
Descrição
Year 11 Computing Mapa Mental sobre 1.2 Memory, criado por Georgios Mikalef em 05-10-2017.
Sem etiquetas
computing - unit 1.2 : memory
computing
year 11
Mapa Mental por
Georgios Mikalef
, atualizado more than 1 year ago
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Menos
Criado por
Georgios Mikalef
quase 7 anos atrás
11
0
0
Resumo de Recurso
1.2 Memory
RAM
Random Access Memory
Stores programs and data in use
volatile
After RAM is full, everything goes to virtual memory
ROM
Non volative. When the computer is turned the data isn't deleted and the ROM stays on for the boot sequence
Boot sequence
POST
1) BIOS performs check
Power On Self-Test
2) Check peripheral devices
3) When check is complete it opens the operating system
1) ROM opens the boot sequence
2) The boot sequence sends a signal to the hard disk and starts the operating system
3) It turns on your computer
Virtual Memory
The RAM supports the computer to do temporary tasks, but the virtual memory supports the RAM. when its full things are sent to the virtual memory
Not as fast as RAM
Volatile
Flash Memory
Has no moving parts (solid state media)
Memory stick, SSD, SD card
Portable - Can take it everywhere
Compatible
Cheap
Expensive when more storage is needed
Break easily
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