Ctrl key is used in conjunction with other keys to provide additional functionality on the keyboard.

Signed integers can be stored in one’s complement, two’s complement, or signed magnitude representation.

MICR, OCR and OMR are examples of a scanner.

Precision of a number defines how much information we have about a value.

Convert 97D to binary 97/2 => quotient=48 remainder=1 48/2 => quotient=24 remainder=0 24/2 => quotient=12 remainder=0 12/2 => quotient=6 remainder=0 6/2 => quotient=3 remainder=1 3/2 => quotient=1 remainder=1 1/2 => quotient=0 remainder=1 (quotient=0 stop) Hence, 97D = 1100001B

A nibble is a group of 4 bits.

The microphones speech recognition is a speech input device.

An n-bit unsigned integer can represent integers from 0 to (2^n) - 1. For example: 8-bit unsigned integer range is 0 to (2^8)  - 1 ( = 255).

Registers is faster than all other memories.

The given range is ASCII hexa code range for the uppercase letters A - Z.

Diagnostic utilities perform hardware tests on particular devices to check if they are working correctly. For example: Scan-disk.

In sign-magnitude representation, 1 is used to define negative. For example: 1000 ≡ - 0 since 1 is MSD, which defines negative. Hence, - 0.

Tape drive has biggest in size among all.

Or gate is true when either or both inputs are true, otherwise it is false.

Single Sided/Double layer has a storage capacity of 8.5 Gb.

Hard disk is a magnetic storage device.

Access time of a floppy disk is 10 k to 100 k per second.

LCD stands for Liquid Crystal Display.

It is an input device.

Right click is used to display a set of commands.