cpu part1

Which of the following registers is used to store the instruction to be decoded or executed

• cir

• RAM

• MAR

• PC

Answer explanation

The full name of cir is the current instruction register, which is part of the CPU and is a special purpose register

Which of the following register stores bits that can indicates the current state（set or clear）

• SR

• IX

• MAR

• MDR

Answer explanation

full name of SR is status regisiter

Describe the nature and function of the pc below (combined with FEcycle)

(a)  

What does AlU do?

• store data and instructions

• store bits that represent the status

• control data flow

• Performs all calculation and comparisons

Answer explanation

The following register is a general register and stores the values to be processed and processed in the ALU

• CIR

• IR

• MDR

• Accumulator

Answer explanation

the accumulator that is to be used by the ALU for the execution of an execution.ALU can then store a value in accumulator after execution of the instructions

Which of the following actions can improve your CPU performance

• use more core

• increase the clock speed of internal clock

• Get a better screen

• Turn down the brightness

Which of the following buses is unidirectional

• bus station

• address bus

• data bus

• control bus

finish the schematic diagram of system bus （with one-way or two-way arrow

How to make your CPU run faster

draw a flow chart of FE cycle