• The following are some of the characteristics of instruction time:
• The I-time is another name for the instruction time.
• The time it takes the Control Unit to retrieve an instruction from memory and load it into a register.
• The time includes the time taken for the CU to decode instructions and locate the relevant data.
• The following are some features of execution time:
• This is the time it takes the control unit to shift data from memory to the ALU's registers; the ALU is in charge of executing instructions on this data.

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