The tiny bit of memory on the side of the CPU, aids the memory
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What does the clock speed effect?
The clock speed, clock speed is measured in megahertz (MHz) - the number of fetch/execute cycles per second
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What does the number of cores effect?
The number of cores, number of processors executing instructions each cycle
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RISC
RISC - Reduced instruction set computer/ fewer instructions but more efficient at simple tasks/has less power, runs cooler/tends to be cheaper to mass produce/ runs at lower clock speed.
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CISC
CISC - Complex instruction set computer, physically larger, more instructions.
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Control Unit
Control Unit - tells the instructions to go
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ALU
ALU - arithmetic logic unit, handles all logical and maths operations
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Registers
Registers - hold the other smaller registers
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ACC
ACC - accumulator
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PC
PC - program counter
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MAR
MAR - Memory address register
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MDR
MDR - Memory data register
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CIR
CIR - Current instruction register
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Data bus
Data bus, lane data is sent along
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Address bus
Address bus, main memory fetches data
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Control bus
Control bus, controls everything
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Storage
Storage - primary storage is volatile, lost data when power is lost
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Secondary storage/Hard drive
Secondary storage/Hard drive - non volatile programs saved as well as the documents
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Random access memory (RAM)
Volatile memory
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Read only memory (ROM)
Shouldn't be changed for the risk of damage to the computer.
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Flash memory
Permanent storage of data, but can be changed
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Cache memory
The small memory near the CPU
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Non volatile
secondary storage is volatile
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Optical
This codes data using microscopic dips on the surface of the disk.
a laser passes over these dips and reads them as data.
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Other cards in this set
Card 2
Front
What does the size of the cache do?
Back
The tiny bit of memory on the side of the CPU, aids the memory
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