Computer Electronics Degree Questions & Answers - Set 02 - ObjectiveBooks
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Computer Electronics Degree Questions & Answers - Set 02

Practice Test: Question Set - 02


1. Computers use thousands of flip-flops. To coordinate the overall action, a common signal called the _______ is sent to each flip-flop.
    (A) Latch
    (B) Clock
    (C) Master
    (D) Slave

2. An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is _______ An XOR gate can test each received word for parity rejecting words with _______ parity.
    (A) Odd, even
    (B) High, low
    (C) Low, high
    (D) Even, odd

3. Conversion of an octal number 478 to its binary number is
    (A) 1100112
    (B) 1001112
    (C) 1100112
    (D) 11110112

4. A NOR gate recognizes only the input word whose bits are _______
    (A) 0's and 1's
    (B) 1's
    (C) 0's
    (D) 0's or 1's

5. A binary adder is a logic circuit that can add _______ binary numbers at a time.
    (A) Hundreds
    (B) Thousands
    (C) One
    (D) Two

6. The maximum count which a 6-bit binary word can represent is
    (A) 36
    (B) 63
    (C) 64
    (D) 65

7. Express 8192 in K units.
    (A) 8 × 103 K
    (B) 8.192 k
    (C) 8 K
    (D) None of the above

8. The _______ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.
    (A) EPROM
    (B) ROM
    (C) PROM
    (D) RAM

9. Why are digital circuits easier to design than analog circuits?
    (A) They do not control electricity precisely over a wide range
    (B) They are made in the form of ICs
    (C) All elements of digital circuit are from the same family
    (D) They are smaller in size

10. A microcomputer is a computer that uses a _______ for its CPU.
    (A) Chips
    (B) Registers
    (C) Microprocessor
    (D) Vacuum tube

11. Which of the following is not functionally a complete set?
    (A) AND, OR
    (B) NAND
    (C) NOR
    (D) AND, OR, NOT

12. If a microcomputer has a 64K memory, what are the hexadecimal notations for the first and last memory location?
    (A) 0000, EEEE
    (B) 0, 64
    (C) 0000, FFFF
    (D) 0000, 9999

13. Conversion of decimal number 9310 to hexadecimal number is
    (A) 2D16
    (B) 5D16
    (C) 6216
    (D) 3116

14. The leading bit stands for the _______ and the remaining bits for the _______ is known as signed binary numbers.
    (A) Sign, remainder
    (B) Sign, magnitude
    (C) Value, sign
    (D) Variable, value

15. The ASCII code is a 7-bit code for
    (A) Letters
    (B) Numbers
    (C) Other symbols
    (D) All of the above

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