Flashcards
Computer science quick wins checklist flashcards.
Flashcards do conjunto (7)
- 1What are registers in a CPU?Registers are a fast form of computer memory which temporarily hold data that is needed by the CPU, they're very fast to read/write to which is faster than any form of memory.
- 2What are the four main registers inside a CPU?Accumulator
Memory Data Register (MDR)
Memory Address Register (MAR)
Program Counter - 3What is the purpose of the Accumulator?The accumulator stores the intermediate results of calculations made in the Arithmetic and Logic Unit (ALU)
- 4What is the purpose of the Memory Address Register (MAR)This register holds any memory ADDRESS that is about to be used by the CPU which may point to data or a CPU instructions.
- 5What is the purpose of the Memory Data Register (MDR)The MDR holds the actual data or instruction which might have been fetched from memory or is waiting to be written to memory.
- 6Why is Utility Software needed?To configure or maintain a computer system.
- 7Utility Software essentials - BADFACEDBackup software
Auto-update
Disk defragmenter
Firewall
Anti-malware software
Compression software
Encryption software
Disk analysis/repair