Digital Computer Electronics – Section 5

1. What is the ASCII code for T?

A. 1010100
B. 1011010
C. 1011100
D. 1011111
E. None of the above

Correct Answer:  A. 1010100

2. Express 8192 in K units.

A. 8 x 103 K
B. 8.192 k
C. 8K
D. All of the above
E. None of the above

Correct Answer:  C. 8K

3. The functional capacity for LSI devices is

A. 1 to 11 gates
B. 12 to 99 gates
C. 100 to 10,000 gates
D. more than 10,000 gates
E. None of the above

Correct Answer:  C. 100 to 10,000 gates

4. What is the 2’s-complement representation of -24 in a 16-bit microcomputer?

A. 0000 0000 0001 1000
B. 1111 1111 1110 0111
C. 1111 1111 1110 1000
D. 0001 0001 1111 0011
E. None of the above

Correct Answer:  C. 1111 1111 1110 1000

5. Which gates is known as universal gate?

A. NOT gate
B. AND gate
C. NAND gate
D. XOR gate
E. None of the above

Correct Answer:  C. NAND gate

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