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Karten in diesem Stapel (22)
- 1What is the purpose of the CPU?The purpose of the CPU is to process data using the Fetch-Decode-Execute cycle
- 2What does the control unit do?It controls and monitors communications between the computer and any hardware attached
- 3What does the arithmetic and logic unit do?It carries out calculations and logic operations
- 4What is clock speed measured in?Cycles per second
- 5What is the immediate access store for?It holds the data and programs that the CPU currently needs
- 6What is primary memory?An internal component which holds data and programs that are currently in use
- 7In terms of memory, what does volatile mean?Volatile (or volatility) means that the memory loses its contents when the power is removed.
- 8What is virtual memory?Virtual memory is secondary storage used as additional RAM.
- 9What is cache memory used for?Cache memory is used to temporarily hold frequently used data and instructions.
- 10What is special about flash memory?Flash memory is non-volatile and can be written to.
- 11What is flash memory used for?Flash memory is used for secondary storage.
- 12What is the purpose of secondary storage?The purpose of secondary storage is to store data and programs long-term. It does not hold data and programs that are currently in use.
- 13Which type of computers usually have no need for secondary storage?Embedded computers usually have no need for secondary storage.
- 14What type of storage is a hard disk drive?A hard disk drive is a magnetic storage device.
- 15What type of medium is a Blu-ray disc?A Blu-ray disc is an optical medium.
- 16What are the flat areas and hollows on an optical disc known as?The flat areas and hollows on an optical disc are known as lands and pits.
- 17What is a network?A network is two or more computers connected together for the purpose of communicating.
- 18What is a LAN?A LAN is a local area network.
- 19What are the two models of network?The two models of network are client-server and peer-to-peer.
- 20What is a server?A computer that manages and stores files
- 21What is an advantage of using fibre-optic cables over twisted copper wires?Fibre-optic cables have a higher bandwidth than twisted copper wires. However, they are more expensive than twisted copper wires.
- 22What is the purpose of a router?The purpose of a router is to send data signals across the internet.
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- Karteikarten am Ohne Titel, erstellt von Daniella Tchandeu am 05/07/2022.
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- Daniella Tchandeu
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