Computer GK Questions with Answers. Compter gk basic knowledge. General knowledge about computer. Computer gk mock test free
HTML stands for?
HTML stands for Hyper text Markup Language.
Explain HDD?
A hard disk drive ( HDD ) is a storage device that stores and retrieves digital data using magnetic storage and spinning disks.
GUI Stands for?
The term GUI stands for “Graphical User Interface”.
A mouse pad provides a smooth surface for a computer mouse to move on, enhancing accuracy and reducing friction.
Explain the difference between software and firmware?
Answer: Software refers to programs and data that can be modified or updated, while firmware is software stored in read-only memory (ROM) that provides permanent instructions for hardware devices.
Explain the function of a power supply unit (PSU)?
Answer: A power supply unit provides electrical power to a computer or device, converting AC power from an outlet into DC power needed by the computer’s components.
What is the purpose of a cursor control key?
Answer: Cursor control keys, such as the arrow keys on a keyboard, are used to move the cursor or highlight / select text or objects on a computer screen.
What are the two main categories of software?
Answer:
1-System software ( e.g., operating systems )
2-application software ( e.g., word processors, web browsers ).
Explain the role of an operating system?
Answer: An operating system manages computer hardware and software resources, provides a user interface, and enables the execution of programs.
What is the motherboard?
Answer: The motherboard is the main circuit board of a computer that connects and allows communication between various hardware components.
Which part of computer is called the brain of the computer?
Answer: The CPU stands for Central Processing Unit is also called the “brain” of a computer.
What is an input device?
Answer: An input device is used to enter data or commands into a computer. Examples include a keyboard, mouse, and microphone.
What is input in the context of computers?
Answer: Input refers to the data or commands entered into a computer system through input devices.
What is output in the context of computers?
Answer: Output refers to the processed data or information produced by a computer system and displayed or provided through output devices.
What is a printer?
Answer: A printer is an output device that produces a physical copy (hard copy) of data or information on paper.
What is a monitor?
Answer: A monitor is an output device that displays outputs from a computer, like text, images, and videos.
What is a scanner?
Answer: A scanner is an input device that captures and converts physical documents or images into digital form for computer processing.
What is a speaker?
Answer: A speaker is an output device that produces sound, allowing users to hear audio generated by a computer.
What is a barcode reader?
Answer: A barcode reader is an input device that scans and decodes barcodes, providing information about products, inventory, or other encoded data.
What is a joystick?
Answer: A joystick is an input device used for controlling movement or actions in computer games or simulations.
What is a projector?
Answer: A projector is an output device that displays visual output from a computer on a larger screen or surface, often used for presentations or entertainment purposes. Read also: Computer quiz questions answers