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control unit
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∙ 11y ago
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∙ 6y agoControl Unit
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What fetches and decodes instructions in a computer?
An instruction cycle.
What fetches decodes executes and stores?
the ram
Difference between microprocessor and instruction code?
difference between micro operation and microinstruction
What fetches instructions from memory decodes them and process them?
Control Unit
What component fetches instructions from memory decodes them and processes them?
My ball sack
What happens after the microprocessor completes an instruction?
It fetches the next instruction.
What do you understand by programming model of a microprocessor?
Micro-Processor programming model refers to the Micro-Processor system as seen by a programmer. It involves the following: The Instruction Set - The Micro-Processor internal Registers - The way Micro-Processor accesses the memory (Addressing - Mode): Micro-Processor 'Fetches' (reads) an instruction from memory, 'Decodes' (interprets) the instruction, and then 'Executes' (carries out the task) the instruction. It repeats the cycle for next instruction. By Fijabi Isaac M. Tech Computer Sc.
I-time and e-time definition?
I-Time: In I time CU fetches an instruction from memory and place it in register. E-Time: In E time CU fetches an instruction from memory to register and place it in the Arithmetic Logic Unit.
What is the use of instruction decoder?
Instruction decoder takes bits stored in the instruction register and decodes it and tells to CPU what it need to do for it and enable the components for the operation. Simply, instruction decoder is like a dictionary. It tells the meaning of the instruction.
What are the four distinct actions that a machine instruction can specify?
• The processor fetches the instruction from memory • Program counter (PC) holds address of the instruction to be fetched next • PC is incremented after each fetch • Fetched instruction loaded into instruction register
Where the instruction execution happens?
Different parts of instruction execution happen in different places:Control Unit - fetches, decodes, and distributes decoded instructions to other units.Arithmetic Logic Unit - performs arithmetic and logic instructions on command from Control Unit.Input/Output Unit(s) - performs input/output instructions on command from Control Unit.Memory Unit - stores instructions and data, transfers them to/from other units on command from Control Unit.
What is the part of a computer that gives directs nstructions?
The instruction unit (decodes and sends commands to alu of the cpu)
