Are you guys looking for computer science MCQ Questions with Answers PDF Free Download as per computer science new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of computer science. Each question has four options followed by the right answer. These computer science MCQ Questions are selected supported by the newest exam pattern.
Q1. The number of input words in a truth table always equals _ where n is the number of inputs bits.
Answer: (B) 2n
Q2. Conversion of decimal number 9310 to hexadecimal number is
Answer: (B) 5D16
Q3. Multiplication of 478 by 528 is
Answer: (C) (3146)8
Q4. 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
Answer: (C) 1111 1111 1110 1000
Q5. An inventor is a gate with only _ input; the output is always in the opposite state from the input
(C) More than one
(D) None of the above
Answer: (A) One
Q6. Conversion of binary number 100000000002 to decimal number is
Answer: (A) 102410
Q7. 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
Answer: (B) Sign, magnitude
Q8. A gate is a logic circuit with one or more input signals but __ output signal.
(D) More than one
Q9. Conversion of binary number 1000112 to an octal number is
Answer: (A) 438
Q10. Standard TTL has a multiple emitter input transistor and a __ output
Answer: (A) Totem-pole
Q11. Conversion of hexadecimal number 6B216 to it’s binary number equivalent is
Answer: (B) 0110101100102
Q12. The ASCII code is a 7-bit code for
(C) Other symbols
(D) All of the above
Answer: (D) All of the above
Q13. A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?
(A) 4,095, 4K
(B) 16,384, 16K
(C) 32,740, 32K
(D) 46,040, 46K
Answer: (B) 16,384, 16K
Q14. With positive clocking the clock signal must be __ for the flip-flop to respond.
Answer: (A) High
Q15. The EXCLUSIVE – NOR gate is equivalent to an __ gate followed by an inverter.
Answer: (D) XOR
Digital Computer Electronics MCQ – All Set
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