1.1 systems architecture

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  • Created by: 17cattonf
  • Created on: 05-11-21 12:28
what is the purpose of the cache?
A small amount of memory which is on or close to the CPU
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what are the registers?
MAR(Memory address register)
MDR(Memory data register)
Program Counter
Accumulator
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what does the MAR do?
holds the memory location of data that needs to be accessed.
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what does the MDR do?
holds the contents found at the address held in the MAR
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what does the program counter do?
gives an address value in the memory of where the next instruction is.
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what does the accumulator do?
a register in which the ALU's results are stored.
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what is an embedded system
An embedded system is a computer system that is part of a larger system or machine.
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Give 3 examples of embedded systems
Dishwasher
Fire Alarm
Mobile phones
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Other cards in this set

Card 2

Front

what are the registers?

Back

MAR(Memory address register)
MDR(Memory data register)
Program Counter
Accumulator

Card 3

Front

what does the MAR do?

Back

Preview of the front of card 3

Card 4

Front

what does the MDR do?

Back

Preview of the front of card 4

Card 5

Front

what does the program counter do?

Back

Preview of the front of card 5
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