List of top Computer Awareness Questions

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

Consider the circuit shown below and find the minimum number of NAND gates required to design it.

Consider the following minterm expression for \( F \): \[ F(P, Q, R, S) = \Sigma(0, 2, 5, 7, 8, 10, 13, 15) \] \(\text{The minterms 2, 7, 8, and 13 are don't care terms. The minimal sum of products form for F is}\)

The time required for fetching and execution of one machine instruction is

Equivalent of the decimal number \( (25.375)_{10} \) in binary form

Suppose we have a 10-bit computer that uses 10-bit 2's complement representation. The number representation of -35 is

What is a potential problem of 1's complement representation of numbers?

How many 32K × 1 RAM chips are needed to provide a memory capacity of 256 K?

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:

A wrong sentence related to FAT 32 and NTFS file system is:

Which of the following registers is used to keep track of address of memory location where the next instruction is located?

If a processor clock is rated as 2500 million cycles per second, then its clock period 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:

Let \( \oplus \) and \( \odot \) denote the Exclusive-OR and Exclusive-NOR operations respectively. Which one of the following is not correct?

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.