Question

In strobe control method, the strobe pulse is controlled by which unit in the CPU?

• A. BIOS
• B. Clock pulses
• C. ALU
• D. Program Counter

Hint:

Clock signals synchronize all major CPU operations including register transfers, memory access, and strobe control.

Answer 1

The Correct Option is B

Concept: Data transfer between registers often requires timing coordination. One technique is called the Strobe Control Method. A strobe signal indicates when data should be transferred. In synchronous systems, these strobe signals are generated using clock pulses.

Step 1: Understand strobe control.
A strobe pulse acts as a timing signal. It tells registers when to read or write data.

Step 2: Identify the source of timing.
Digital computers use a master clock to synchronize operations. The clock generates periodic pulses. These pulses control data transfer activities.

Step 3: Eliminate incorrect options.
BIOS initializes hardware during startup. ALU performs arithmetic and logical operations. Program Counter stores instruction addresses. None of them generate timing pulses.

Step 4: Write the final answer.
Hence the strobe pulse is controlled by \[ \boxed{\text{Clock Pulses}} \] Therefore option (B) is correct.