Flashcards
Hardware-Specific Storage - OCR Computer Science A Level
Cards in this deck (6)
- 1What is Primary Storage?> Storage that the CPU can access quickly (compared to secondary storage)
> Small capacity
> Usually volatile
> Includes RAM, ROM, and registers - 2What is Secondary Storage?> Non-volatile
> Large(r) capacity
> Slow access speed compared to primary - physically further away (e.g., usually connected via a slow cable)
> Stores OS, applications, and files when they are not in use - 3What is Tertiary Storage?> Non-volatile storage away from a personal PC
> Used for long term backups of data
> Used in large facilities to store large amounts of data - 4What is RAM?> Random access memory
> Contains the OS (while the computer is running), open programs, and open files
> Contains the data / instructions being executed / executed on by the CPU
> Volatile - 5What is ROM?> Read only memory
> Non-volatile
> Contains the BIOS, which contains instructions on how to load the OS (mainly the OS' kernel)
Computer boots -> Load BIOS -> System Checks -> Load OS to RAM - 6What is Virtual Memory?> Secondary storage used as additional RAM
> CPU moves data that hasn't been recently used into virtual memory
> Extremely slow data transfer as compared to RAM
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- A level Computer Science (Input, Output, and Storage) Flashcards on Hardware-Specific Storage - OCR Computer Science A Level , created by Malachy Moran-Tun on 18/05/2022.
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- Malachy Moran-Tun
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- Created by Malachy Moran-Tun · May 12, 2022
- Copied by Malachy Moran-Tun · May 18, 2022
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