List of top Computer Awareness Questions asked in NIT MCA Common Entrance Test

The number of minterms in an \( n \) variable truth table is:
The reduced form of the Boolean function \( F = xyz + xyz' + x'yz + zy'z \) is

Consider the following Boolean expression for F: \( F(P, Q, R, S) = PQ + PQR + \overline{P}QR \). The minimum sum of products form of F is
 

A CPU generates 32-bit virtual addresses. The page size is 4 KB. The processor has a translation look-aside buffer (TLB) which can hold a total of 128 page table entries and is 4-way set associative. The minimum size of the TLB tag is:
Suppose we have a 10-bit computer that uses 10-bit floating-point computational unit (Flot number uses IEEE floating-point arithmetic where a floating point number has 1 sign bit, 5 exponent bits, and 4 fraction bits). The representation for \( +\infty \) (plus infinity) is:
If a processor clock is rated as 2500 million cycles per second, then its clock period is
Let \( \oplus \) and \( \odot \) denote the Exclusive-OR and Exclusive-NOR operations respectively. Which one of the following is not correct?
Which of the following registers is used to keep track of address of memory location where the next instruction is located?
A wrong sentence related to FAT 32 and NTFS file system is:
The number of minterms in an n-variable truth table is:
A bulb in the staircase has two switches, one switch is at the ground floor and the other one is at the first floor. The bulb can be turned ON and also can be turned OFF by any of the switches irrespective of the state of the other switch. The logic of the switching of the bulb resembles.
The maximum and minimum value represented in signed 16 bit 2's complement representations are
The time required for fetching and execution of one machine instruction is
If a processor clock is rated as 2500 million cycles per second, then its clock period is
Which of the following registers is used to keep track of address of memory location where the next instruction is located?
How many 32K \(\times\) 1 RAM chips are needed to provide a memory capacity of 256K bytes?
Consider the circuit shown below and find the minimum number of NAND gates required to design it.
Suppose the largest n bit number requires 'd' digits in decimal representation. Which of the following relations between 'n' and 'd' is approximately correct?
'Floating point representation' is used to represent
If a processor clock is rated as 2500 million cycles per second, then its clock period is:

Write the simplified form of the Boolean expression \( (A + C)(AD + AD') + AC + C \):

The Boolean expression \( AB+ A\bar{B} + \bar{A}C + AC \) is unaffected by the value of the Boolean variable
If a signal passing through a gate is inhibited by sending a low into one of the inputs, and the output is HIGH, the gate is a(n):
The maximum and minimum value represented in signed 16 bit 2's complement representations are
FFFF will be the last memory location in a memory of size