Karteikarten
Terms
Karten in diesem Stapel (18)
- 1Fetch-execute cycleFetches data, decodes/inspects data, executes instruction
- 2Von Neumann architectureA stored-program computer
- 3What is a computer?An electronic device which takes input, processes data and
delivers output - 4Control Unit (CU)Decodes instructions. Sends signals to control how data moves around the CPU
- 5RegistersTiny pieces of super fast pieces of onboard memory inside the CPU designed for a specific purpose
- 6Arithmetic Logic Unit (ALU)Performs calculations and makes logical decisions
- 7CacheSmall amount of very fast memory located in or near the CPU providing fast access to frequently used data and instructions
- 8Fixed-program computerCan only do 1 job but can't be used for anything else. Changing the program requires rewriting or redesigning it
- 9Stored-program computerHas more than 1 function. its programs are changeable
- 10ProgramsSequence of instructions stored in RAM, in binary outside the CPU. Fetched to the registers for processing
- 11Program counterHolds the address of the next instruction to be executed, in memory. Them contents are incremented by 1
- 12Memory address register (MAR)Holds the address of where the data is fetched from or stored
- 13Memory data register (MDR)Holds the data fetched from or to be written to memory
- 14AccumulatorHolds the results of calculations performed by the ALU
- 15Clock speedMeasured in Hertz (Hz) it is the number of fetch-execute cycles performed in 1 second
- 16Cache sizeLocated near or in the CPU, sections of programs are stored here making use of the fast fetch cycle. The larger the size of the cache, the faster the computer will process because instructions don't need to be fetched from the RAM
- 17CoresA complete copy of the CPU. It can be part of a multi-core processor which means that it can do multiple fetch-execute cycles at once and can multi-task
- 18Embedded systemA computer which has been built to solve a specific program. Its programming is not easy to change
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- GCSE Computing (1.1 Systems Architecture) Karteikarten am Terms, erstellt von Rujula Anand am 29/09/2021.
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- Rujula Anand
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