A. Decode
B. Fetch
C. Write Back
D. Execute
Choose the correct answer from the options given below :
CPU Control Unit Operations Order
The control unit of a Central Processing Unit (CPU) manages the execution of instructions by following a specific sequence known as the instruction cycle. This cycle ensures that instructions are processed correctly and efficiently.
Instruction Execution Sequence
The standard order for processing an instruction within the CPU's control unit is:
- Fetch (B): The process begins with fetching the instruction from the main memory (RAM) into the CPU.
- Decode (A): Once fetched, the instruction is decoded. The control unit interprets the instruction's command to determine the required action.
- Execute (D): The control unit directs the appropriate CPU components (like the ALU) to perform the operation specified by the decoded instruction.
- Write Back (C): Finally, the result of the execution is written back into a CPU register or stored in memory, completing the instruction cycle.
This sequence ensures a structured approach to instruction processing. The correct order is therefore Fetch, Decode, Execute, Write Back, represented by the sequence B, A, D, C.
Similar Questions
- Arrange the following words in logical and meaningful order.
A. Mammals
B. Vertebrates
C. Cat
D. Animal
E. Feline
Choose the correct answer from the options given below : - Rearrange the following sentences into a logical and meaningful paragraph:
A. People have always been fascinated by dreams.
B. In fact, only recently have there been serious studies to find out how many of us actually have nightmares.
C. Now that is changing.
D. But the study of nightmares has been curiously neglected.
E. While results so far are inconclusive, it seems fair to say that at least half the population has occasional nightmares.
Choose the correct answer from the options given below : - Arrange the following events in chronological order.
A. Jalianwala Bagh Massacre
B. Quit India Movement
C. Call for Purna Swaraj
D. Dandi Yatra
E. Capital Punishment to Bhagat Singh, Rajguru and Sukdhev
Choose the correct answer from the options given below : - Arrange the following in chronological order :
A. Banks get nationalised
B. Lal Bahadur Shastri becomes Prime Minister
C. India does first nuclear test
D. India hosts Asiad with APPU as icon
E. Manmohan Singh becomes Finance Minister
Choose the correct answer from the options given below : - Arrange the following computers in the decreasing order of their cost, speed and size.
A. Mini computers
B. Super computers
C. Mainframe computers
D. Micro computers
Choose the correct answer from the options given below : - (Left) S 7 @ P B 6 # ! 4 Q $ A T K $\beta$ 8 M (Right)
The following combinations are given based on the position of element in the above sequence. Which of them follow the same pattern ?
A. A K 4
B. Q A !
C. $\beta$ M T
D. # 4 P
E. 6 ! @
Choose the correct answer from the options given below : - Arrange the following words in logical and meaningful order.
A. Salary
B. Education
C. Recruitment
D. School
E. Employment
Choose the correct answer from the options given below :
Important Questions from Arrangement And Pattern (Notes)
- If the digits in the number '758462139' are arranged in ascending order, then how many digits remain in the same place?
Each of the digits in the number 8642571 is arranged in ascending order from left to right. What will be the sum of the digits which are fourth from the left and second from the right in the new number thus formed?
- Arrange the following is the correct sequence with regard to 'the five-stage model' of conditions required for learning.
(1) Transformation
(2) Presentation
(3) Engagement
(4) Reflection
(5) Exploration. - Arrange the steps of research in a sequential order
(1) Identifying a research problem
(2) Specifying the purpose for research
(3) Reviewing the literature
(4) Collecting the data
(5) Reporting and evaluating research
(6) Analysing and interpreting the data
Choose the correct sequence. Refer to the following letter, number, symbol series and answer the question that follows.
(Left) C H * * 8 5 9 * 4 9 1 6 5 L # 5 6 5 £ * K B (Right)
If all the numbers are dropped from the series, which of the following will be fifth from the left?
