A directory of Objective Type Questions covering all the Computer Science subjects. Here you can access and discuss Multiple choice questions and answers for various compitative exams and interviews.

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 1. Match the following IC families with their basic circuits :a. TTL                          1. NANDb. ECL                         2. NORc. CMOS 3. InverterCode : a b c a. 1 2 3 b. 3 2 1 c. 2 3 1 d. 2 1 3

 2. What is the result of the following expression(1 & 2) + (3 & 4) a. 1 b. 2 c. 3 d. 0

 3. Match the following :a. TTL                          1. High fan outb. ECL                         2. Low propagation delayc. CMOS                     3. High power dissipationCode : a b c a. 3 2 1 b. 1 2 3 c. 1 3 2 d. 3 1 2

 4. Identify the operation which is commutative but not associative ? a. OR b. NOR c. EX-OR d. NAND

 5. Extremely low power dissipation and low cost per gate can be achieved in: a. MOS ICs b. CMOS ICs c. TTL ICs d. ECL ICs

 6. An example of a universal building block is a. EX-OR gate b. AND gate c. OR gate d. NOR gate

 7. The dual of a Boolean expression is obtained by interchanging a. Boolean sums and Boolean products b. Boolean sums and Boolean products or interchanging 0's and 1 's c. Boolean sums and Boolean products and interchanging 0's & 1's d. Interchanging 0's and 1 's

 8. Given that (292)10 = (1204)x in some number system x. The base x of that number system is a. 2 b. 8 c. 10 d. None of the above

 9. The sum of products, expansion for the functionF(x, y, z) = (x, + y) z' is given as a. x ' y ' z + x y z ' +  x y z ' b. x y z +  x y z' +  x Y' z ' c. x y' z' +  x ' y ' z ' +  x y z ' d. x y z '  + x Y ' z '  + x ' y z '