AExE02 · Chapter 2Digital Logic & Microprocessor🏛️ Past Licensure QuestionID: 3f8a8c16
Which is NOT a typical function of registers/counters?
Which is NOT a typical function of registers/counters?
Multiple Choice Options
- A
Data storage
- B
Data transfer
- C
Counting
- D✓ Correct Option
Addition of two numbers
Detailed Technical Solution & Explanation
Registers and counters are sequential logic devices designed for temporary data storage, parallel/serial data transfer, and sequential event counting. Arithmetic operations such as the addition of two numbers require combinational arithmetic circuits (specifically Full Adders or an ALU), which is not a primary function of standalone registers or counters.
Option Analysis:
•
Option A (Data storage): Incorrect. Data storage (holding binary words in flip-flops) is the primary function of registers.
•
Option B (Data transfer): Incorrect. Data transfer (shift registers transferring data serially or in parallel) is a standard register function.
•
Option C (Counting): Incorrect. Counting clock cycles or external pulses is the definitive function of counters (e.g., ripple counters, synchronous counters).
•
Option D (Addition of two numbers): Correct. Arithmetic addition is performed by an adder within the ALU, not by standalone registers or counters.
Reference: Demo2 · Set 1NEC Licensure Syllabus