Karteikarten
1.1
Karten in diesem Stapel (15)
- 1CPUThe main part of the computer, consisting of the registers, ALU and control unit.
- 2Fetch-decode-execute cycle“The complete process of retrieving an instruction from storage, decoding it and carrying it out. Also known as the instruction cycle.”
- 3ALUArithmetic Logic Unit: “Performs calculations (e.g., x = 2 + 3) and logical comparisons (e.g., IF x > 3) in the CPU.”
- 4CUControl Unit: “Decodes instructions. Sends signals to control how data moves around the CPU.”
- 5Cache“Memory in the processor that provides fast access to frequently used instructions and data.”
- 6RegisterTiny areas of extremely fast memory located in the CPU, normally designed for a specific purpose where data or control information is stored temporarily – e.g., MAR, MDR, etc.”
- 7Von Neumann architecture“Traditional computer architecture that forms the basis of most digital computer systems. Instructions are fetched, decoded and executed one at a time.”
- 8MARMemory Address Register: “Holds the address of data ready to be used by the memory data register or the address of an instruction passed from the program counter. Step two of the fetch-decode-execute cycle.”
- 9MDRMemory Data Register: “Holds data fetched from or to be written to memory. Step three of the fetch-decode-execute cycle.”
- 10Program counter“Holds the address of the next instruction to be executed. Step one of the fetch-decode-execute cycle.”
- 11Accumulator“Holds the result of calculations.”
- 12Clock speed“Measured in hertz, the clock speed is the frequency at which the internal clock generates pulses. The higher the clock rate, the faster the computer may work. The clock is the electronic unit that synchronises related components by generating pulses at a constant rate.”
- 13Cache size“The larger the cache, the more data that can be stored without having to go back to main memory (RAM) – this has a significant impact on processing speed.”
- 14Cores“Part of a multi-core processor, a single component with two or more independent CPUs that facilitate the fetch-decode-execute cycle.”
- 15Embedded system“A computer built to solve a highly specific problem. Not easy to change. For example, the operating system placed inside a washing machine, microwave or set of traffic lights.”
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- GCSE Computing Karteikarten am 1.1, erstellt von Daniel Eyre am 14/10/2021.
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- Daniel Eyre
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