Identify the correct order of some of the words A-E given below to complete…
2022
Identify the correct order of some of the words A-E given below to complete the following paragraph which explains the role carried out by different parts of the CPU. Part of the CPU that (i) holds programs and data currently in use is called: (ii) performs calculation and logical operations is called: and (iii) tells input and output devices how to carry out instructions is called: (A) Control Unit (B) ASCII (C) Immediate Access Store (D) ALU (E) SSD Choose the correct answer from the options given below:
Answer: B. (C), (D), (A) — ConceptA processor uses specialized functional units: temporary working storage keeps active instructions and data, the arithmetic logic unit executes…
- A.
(D), (A), (B)
- B.
(C), (D), (A)
- C.
(C), (E), (A)
- D.
(B), (D), (E)
Attempted by 6 students.
Show answer & explanation
Correct answer: B
Concept
A processor uses specialized functional units: temporary working storage keeps active instructions and data, the arithmetic logic unit executes arithmetic and logical operations, and the control unit coordinates instruction execution and input/output control.
Text-encoding standards and secondary-storage devices serve different roles; they are not CPU control or execution units.
Application
The part that holds programs and data currently in use is the Immediate Access Store, meaning the working memory directly available during processing.
The part that performs calculations and logical operations is the ALU (Arithmetic Logic Unit).
The part that directs input and output devices while instructions are carried out is the Control Unit.
Cross-check and contrast
ASCII is a character-encoding standard, so it does not perform any of the three CPU-unit roles described.
An SSD is non-volatile secondary storage, not the CPU unit that performs arithmetic or controls input/output operations.
Therefore, the required sequence by value is Immediate Access Store → ALU → Control Unit.