Systems Q&A | Information Systems
1. Computer hardware is best described as:
A) Software programs that run on a computer
B) Any part of a computer you can physically touch
C) Data stored on a computer
D) The operating system of a computer
Correct Answer: Any part of a computer you can physically touch
Rationale: Computer hardware refers to any part of a computer you can
physically touch . This includes the CPU, memory, storage devices, and
peripherals. Software, in contrast, consists of the programs and data that run
on the hardware.
2. Unlike humans, computers work exclusively with numbers. The language
computers understand is called:
A) Assembly language
B) High-level language
C) Binary language
D) Machine language
Correct Answer: Binary language
Rationale: Computers work exclusively with numbers, and the language they
understand is binary language . Binary language consists of only two digits: 0
and 1, which represent the off and on states of electronic switches.
3. Eight binary digits (or bits) equal:
,A) One nibble
B) One byte
C) One kilobyte
D) One word
Correct Answer: One byte
Rationale: Eight binary digits (or bits) equal one byte . A byte is the basic unit
of measurement for computer storage and can represent a single character,
such as a letter or number.
4. Each 0 or 1 in binary language is called a:
A) Byte
B) Bit
C) Nibble
D) Character
Correct Answer: Bit
Rationale: Each 0 or 1 in binary language is called a binary digit, or bit for
short . A bit is the smallest unit of data in computing.
5. An input device is best defined as:
A) A device that sends processed data out of the computer
B) A device that lets you enter data and instructions into your computer
C) A device that stores data permanently
D) A device that processes instructions
,Correct Answer: A device that lets you enter data and instructions into your
computer
Rationale: An input device lets you enter data (text, images, and sound) and
instructions (users responses and commands) into your computer . Examples
include keyboards, mice, touch screens, scanners, and microphones .
6. An output device is best defined as:
A) A device that lets you enter data into your computer
B) A device that stores data permanently
C) A device that lets you send processed data out of your computer
D) A device that processes instructions
Correct Answer: A device that lets you send processed data out of your
computer
Rationale: An output device lets you send processed data out of your
computer in the form of text, pictures (graphics), sounds (audio), or video .
Examples include monitors, printers, speakers, and earbuds .
7. Which of the following is an example of an input device?
A) Monitor
B) Printer
C) Keyboard
D) Speaker
Correct Answer: Keyboard
, Rationale: A keyboard is an input device used to enter typed data and
commands into a computer . Monitors, printers, and speakers are output
devices that display or transmit processed information.
8. Which of the following is an example of an output device?
A) Mouse
B) Scanner
C) Microphone
D) Monitor
Correct Answer: Monitor
Rationale: A monitor (sometimes referred to as a display screen) is an output
device that displays text, graphics, and video as soft copies . Mice, scanners,
and microphones are input devices.
9. Input devices, output devices, and auxiliary storage devices are
collectively known as:
A) System devices
B) Peripheral devices
C) Core devices
D) Interactive devices
Correct Answer: Peripheral devices
Rationale: Input devices, output devices, and auxiliary storage devices are
collectively known as peripheral devices . They connect to the computer
system to provide additional functionality.