topic 1

  • Created by: xopriya
  • Created on: 05-04-18 09:37
what is a computer
a machine that processes data
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what is an embedded system?
computers built into other devices
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what are embedded systems often used as?
control systems- they monitor and control machinery in order to achieve a desired result
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why are embedded systems better than general purpose computers?
because they're dedicated to a single task
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what is hardware?
the physical stuff that makes up your computer system (motherboard, CPU, monitor & printer)
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what is software?
the programmes or applications that a computer system runs (operating system, word processor, video game)
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what is the CPU?
the brain of the computer system
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what does the CPU do?
processes all of the data & instructions that make the system work
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fetch instruction
Copy memory address from the program counter to the MAR. Copy the instruction stored in the MAR address to the MDR. Increment the program counter to point to the address of the next instruction, ready for the next cycle.
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decode instruction
The instruction in the MDR is decoded by the CU. The Cu may then prepare for the next step.
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execute system
The instruction is performed.
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Other cards in this set

Card 2

Front

what is an embedded system?

Back

computers built into other devices

Card 3

Front

what are embedded systems often used as?

Back

Preview of the front of card 3

Card 4

Front

why are embedded systems better than general purpose computers?

Back

Preview of the front of card 4

Card 5

Front

what is hardware?

Back

Preview of the front of card 5
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