COMPUTER HARDWARE COMPONENTS FUNCTIONS
WHAT IS A MOTHERBOARD
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Fetch
|
|
|
Decode
|
|
|
Execute
|
|
|
Store
|
Detailed explanation-1: -During the decode stage, the control unit (CU) will decode the instruction in the CIR. The CU then sends signals to other components within the CPU, such as the arithmetic logic unit (ALU) and the floating point unit (FPU).
Detailed explanation-2: -The CPU’s control unit decodes the program instruction once it is loaded into the instruction register (IR). A Decode Phase is the second phase of the instruction cycle. The instruction is decoded by the CPU’s control unit based on the operation code (OPCODE), determined by three bits (bit 12, 13, 14).
Detailed explanation-3: -A CPU has the following components: Fetch – gets the next program command from the computer’s memory. Decode – deciphers what the program is telling the computer to do. Execute – carries out the requested action. Store – saves the results to a Register or Memory.
Detailed explanation-4: -Four steps of the machine cycle Fetch-Retrieve an instruction from memory. Decode-Translate the retrieved instruction into computer commands. Execute-Execute the computer commands. Store-Send and write the results back in memory.