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1.1 Systems Architecture MatchUp
Target Level
4-5
Running Total
0
0%
Attempt
1 of 3
Drag each of the top boxes to its matching pair. You must match all the pairs before clicking ‘Check’.
Core
ALU (Arithmetic Logic Unit)
Embedded System
Accumulator
MDR (Memory Data Register)
CIR (Current Instruction Register)
PC (Program Counter)
Cache
CU (Control Unit)
MAR (Memory Address Register)
Clock
CPU (Central Processing Unit)
A register that stores the memory locations that need to be read from or written to
A register that stores the data that has just been read from or needs to be written to the memory
A register that points to the memory location where the next instruction to be run is stored
A register that stores the result of the last calculation
Carries out mathematical and logical operations
Decodes instructions and controls data flow across the computer
An area of memory with fast access speeds, but limited storage capacity
Carries out all of the computer's processing and co-ordinates all of its components
A computer with a dedicated purpose that forms part of a larger device
Each of these can run processes in their own fetch-execute cycle, multiple of these can be used to increase the CPU's performance
Generates regular electrical pulses, where each pulse allows the computer to carry out a single operation
A register that holds the instruction that is currently being executed