Computer hardware
64 Questions
Computer hardware MCQs — Practice & Prepare
✅ Correct answer: instructions
The specific steps and tasks that tell a computer how to process data are called instructions, forming the basis of any program a computer runs.
✅ Correct answer: Home
Pressing the Home key moves the cursor to the very beginning of the current line of text, a standard navigation shortcut in most text editors and applications.
✅ Correct answer: Window
The Windows key (labeled with the Windows logo) launches the Start button/menu, giving quick access to programs, settings, and search.
✅ Correct answer: input device
A computer keyboard is a classic example of an input device, used to type text, numbers, and commands directly into the computer.
✅ Correct answer: keyboard
The keyboard remains the most common and widely used device for entering both text and numerical data into a computer system.
✅ Correct answer: Both A and B
Caps Lock and Num Lock are both known as toggle keys, since pressing them switches (toggles) a setting on and off, unlike regular keys that simply type a character.
✅ Correct answer: indent a paragraph
The Tab key can be used both to move the cursor across the screen (e.g., between form fields) and to indent a paragraph when typing in a word processor.
✅ Correct answer: giving space
The spacebar is primarily used for inserting a blank space between characters or words while typing.
✅ Correct answer: Page Scrolling to view a Document
The left-right-up-down arrow keys on a keyboard are primarily used for scrolling and navigating through a document or interface, moving the cursor in the corresponding direction.
✅ Correct answer: keyboard
A keyboard is a text-entry device, not a pointing device — unlike a mouse, joystick, or trackball, all of which are used to move a cursor or pointer on screen.
✅ Correct answer: Input
A computer mouse is an input device, used to send positional and click data to the computer, allowing the user to interact with on-screen elements.
✅ Correct answer: Modifier Keys
Shift, Ctrl, and Alt are known as modifier keys, since they don't type a character on their own but modify the action of other keys when pressed in combination (e.g., Ctrl+C for copy).
✅ Correct answer: input
A mouse, joystick, or keyboard are all used to give input to the computer — sending commands and data for the computer to process.
✅ Correct answer: Mouse
A mouse is a pointing and draw device, letting users point at, select, click, and even draw on-screen elements by moving it across a surface.
✅ Correct answer: Douglas Engelbart
Douglas Engelbart, working at the Stanford Research Institute, built and demonstrated the first computer mouse in 1964, revolutionizing how people would later interact with computers.
✅ Correct answer: mouse
Along with the keyboard, the mouse is one of the most fundamental and widely used input devices for interacting with a computer.
✅ Correct answer: Tail towards the user
The best position for operating a mouse is with its tail (cable, or wireless sensor end) facing towards the user, allowing for natural, comfortable hand movement.
✅ Correct answer: scroll wheel
The scroll wheel, located between the left and right mouse buttons, can also be pressed down to function as a middle (third) mouse button, often used to open links in new tabs or enable auto-scroll.
✅ Correct answer: pointing device
A trackball, which lets the user roll a ball to move the on-screen cursor while the device itself remains stationary, is a type of pointing device, similar in function to a mouse.
✅ Correct answer: computer gaming
A joystick is primarily used for computer gaming, allowing players to control movement and actions within a game through a handheld lever.