Zusammenfassung der Ressource
Parts of a computer
- CPU
- Fetch, decode execute
Anmerkungen:
- CPU fetches the top instruction and passes it on to the decoder. It is decoded and carried out
- Processor speed
Anmerkungen:
- 1 hertz is one instruction carried out a second
- Storage
- ROM
Anmerkungen:
- Read only memory. It holds the program needed for switching on the computer (bootstrap/BIOS). It stores data permanently.
It checks if you've got a keyboard. If you haven't it says to press F5.
- Main memory
- RAM
Anmerkungen:
- Random access memory.
It holds the data only while it is powered.
Volatile
- Motherboard
Anmerkungen:
- Connects all the components
- Fan
Anmerkungen:
- Cools all the components that might get hot
- Drive
- Floppy drive
Anmerkungen:
- Reads and writes information stored on floppy discs
Removable storage
- Optical drive
Anmerkungen:
- Reads and writes information stored on compact discs
- Hard disk drive
Anmerkungen:
- Permanent memory where most things are stored.
Secondary storage
Non-volatlle