Computer Hardware Components

Questions and Answers

What is the primary function of the control unit in a computer?

To store data and instructions

To ensure all basic operations are executed in a right manner and sequence (correct)

To output data through devices like monitor and printer

To perform arithmetic and logic operations

What is the process of entering raw data, instructions, and information into a computer?

Outputting

Inputting (correct)

Storing

Processing

What type of machine is a contemporary computer?

Turing machine

Von Neumann machine (correct)

Stored program computer

All of the above

What is the purpose of the arithmetic and logic unit in a computer?

To perform arithmetic and logic operations Signup and view all the answers

What is the secondary storage device in a computer?

Secondary/External Memory Signup and view all the answers

What is the process of converting raw data into useful information in a computer?

Processing Signup and view all the answers

What is the function of an input device in a computer?

To communicate with a computer Signup and view all the answers

What is the process of presenting processed data through devices like monitors and printers?

Outputting Signup and view all the answers

What is the primary function of an input device?

To send data, information, or control signals to a computer Signup and view all the answers

What does the Central Processing Unit (CPU) do with the input it receives?

Processes it to produce output Signup and view all the answers

What is the most commonly used keyboard layout?

QWERTY Signup and view all the answers

What is the name of the French keyboard layout?

AZERTY Signup and view all the answers

Which of the following is NOT an example of an input device?

Monitor Signup and view all the answers

How are keyboards typically connected to a computer?

Through a USB or Bluetooth device Signup and view all the answers

What is the primary function of a keyboard?

To enter data into a computer Signup and view all the answers

What is an example of a specialized keyboard?

AZERTY Keyboard Signup and view all the answers

Study Notes

Hardware Components of a Computer

A computer system consists of physical parts that can be seen from the outside, including the keyboard, system unit, and monitor.

Elements of a Computing System

Contemporary computers are based on the von Neumann architecture, which includes:
- Input devices
- Processor (CPU) - control unit, arithmetic and logic unit
- Memory
- Output devices

Operations of Computer Components

Inputting: entering raw data, instructions, and information into the computer using input devices
Storing: storing data and instructions in primary memory and secondary storage
Processing: converting raw data into useful information using the CPU
Outputting: presenting processed data through output devices
Controlling: ensuring all basic operations are executed in a right manner and sequence by the control unit

Input Devices

Allow users to communicate with a computer and enter information and commands
Examples of input devices:
- Keyboard
- Mouse
- Scanner
- Joystick
- Light Pen
- Digitizer
- Microphone
- Magnetic Ink Character Recognition (MICR)
- Optical Character Reader (OCR)
- Digital Camera
- Paddle
- Steering Wheel
- Gesture recognition devices
- Light Gun
- Touch Pad
- Remote
- Touch screen
- VR
- Webcam
- Biometric Devices

Keyboard

A basic input device used to enter data into a computer or other electronic device
Has different sets of keys for letters, numbers, characters, and functions
Connected to a computer through USB or Bluetooth
Types of keyboards:
- QWERTY Keyboard: most commonly used, named after the first six letters of the top row of buttons
- AZERTY Keyboard: considered the standard French keyboard, developed in France as an alternative to QWERTY