Flashcards
Computer Science
Flashcards do conjunto (14)
- 1What are the 3 things that affect CPU performanceCache, number of cores, clock speed
- 2What is clock speed?This is how many Fetch, Decode, Execute cycles the processor can complete per second.
- 3What is clock speed measured in?Hertz (Hz)
Kilohertz (kHz)
Megahertz (MHz)
Gigahertz (GHz) - 4What happens to the CPU if there are more cores?Multiple instructions can be processed at one time - higher clock speed
- 5What is the cache?A small high speed memory used to store frequently used instructions
from the CPU - 6What is the CPU?The Central Processing Unit fetches, decodes and executes instructions.
- 7What is RAM?Random Access Memory stores temporary data from running
applications. - 8What happens to RAM when the computer is turned off?It is wiped
- 9What is ROM?Read Only Memory stores the boot up instructions
- 10What are 2 cores called?Dual core
- 11What are 4 cores called?Quad core
- 12What is the Control Unit? Where is it?The control unit is in the CPU. It decodes instructions and controls the flow of data in the CPU
- 13What does ALU stand for? What does it do? Where is it?The Arithmetic Logic Unit, in the CPU, carries out calculations and logical decisions in the CPU to help decode instructions
- 14Name 4 types of RegistersAccumulator (ACC), Memory Address Register (MAR), Memory Data Register (MDR), Program Counter(PC)
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- FlashCards sobre Computer Science, criado por Luca Wilson em 16-09-2021.
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- Luca Wilson
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