R4RIN – MCQs, Mock Tests | Computer Hardware and Networking Computer Hardware MCQ GK Questions Set 2

Which of the following is a permanent storage location within the CPU used to hold a binary value temporarily for manipulation and/or for simple calculations?

1. Main memory
2. Secondary memory
3. Register
4. Both a and b

✅ Correct Answer: 3

Which of the following register holds a data value that is being stored to or retrieved from the memory location?

1. PSW
2. Main memory
3. Memory data register
4. Cache register

✅ Correct Answer: 3

A device that allows entering data and instruction into a computer system is called

1. interaction
2. terminal
3. communication
4. input

✅ Correct Answer: 4

Which of the following are examples of pointing devices?

1. Mouse trackball
2. joystick light pen
3. touch screen
4. All

✅ Correct Answer: 4

Which of the following is not a type of mouse?

1. Wireless mouse
2. Optical mouse
3. Mechanical mouse
4. Electromechanical mouse

✅ Correct Answer: 4

Which of the keys are also known as modifier keys?

1. Shift
2. Ctrl
3. Alt
4. All the above

✅ Correct Answer: 4

Which keys are also known as toggle keys?

1. Caps lock Num lock
2. Control key Enter key
3. Shift Esc
4. Both a yand b

✅ Correct Answer: 1

Which key is used to indent a paragraph?

1. Spacebar
2. Tab
3. Shift
4. None

✅ Correct Answer: 2

Which key is used to open the Start menu?

1. Windows
2. Alt
3. Ctrl + Alt
4. None of these

✅ Correct Answer: 1

Which key is used to erase data from the computer s memory and characters on the screen?

1. Backspace
2. Delete
3. Shift + Alt
4. Both a and b

✅ Correct Answer: 2

The first computer architecture was designed in

1. 1970
2. 1985
3. 1968
4. 1975

✅ Correct Answer: 1

Which bus is used to connect external devices?

1. Address
2. Data
3. Control
4. External

✅ Correct Answer: 4

Which of the following is not an integral part of the computer system?

1. CPU
2. Mouse
3. Monitor
4. UPS

✅ Correct Answer: 4

Which of the following device provides surge protection and battery backup power during a power outage?

1. Battery strip
2. Surge strip
3. UPS
4. USB

✅ Correct Answer: 3

Which of the following is a temporary storage location attached to CPU for input and output operations? Register

1. Memory chip
2. Register
3. Buffer
4. Core

✅ Correct Answer: 3

Which of the following is used to measure the speed of the CPU (processor)?

1. Processing speed
2. Unit
3. Coprocessor
4. Clock speed

✅ Correct Answer: 4

A uniform interval of CPU time allocated for performing a task is called

1. real time
2. seek time
3. time slice
4. unit time

✅ Correct Answer: 3

What is the full form of DMA?

1. Direct memory access
2. Dynamic memory access
3. Double memory access
4. None of these

✅ Correct Answer: 1

Which of the following optical input device converts data and images on paper into digital form?

1. Printer
2. Scanner
3. Projector
4. Scanner

✅ Correct Answer: 4

What kind of device is a digital camera?

1. Input
2. Output
3. I/O
4. None

✅ Correct Answer: 1

Which of the following device is a visual display unit (VDU)?

1. Webcam
2. Projector
3. Monitor
4. None

✅ Correct Answer: 3

The clarity of an image depends on which factors?

1. Resolution of the screen
2. Dot pitch
3. Refresh rate
4. All of the above

✅ Correct Answer: 4

What is the full form of CRT device?

1. Cathode Ray Tube
2. Crystal Ray Tube
3. Cathode Ray Transistor
4. None

✅ Correct Answer: 1

LCD stands for None

1. Liquid Crystal Display
2. Light Crystal Display
3. Liquid Cathode Display
4. None

✅ Correct Answer: 1

What does TFT stand for?

1. Transistor Film Transistor
2. Thin Film Transistor
3. Thin Film Transducer
4. None

✅ Correct Answer: 2

What is the full form of LED?

1. Light Emitted Diode
2. Light Emitter Diode
3. Liquid Emitted Diode
4. Both a and c

✅ Correct Answer: 4

The speed of a printer is measured in All of the above

1. CPS (Character per second)
2. LPM (Lines Per Minute)
3. PPM (Pages Per Minute)
4. All of the above

✅ Correct Answer: 4

What kind of device is a printer?

1. Input
2. Output
3. Storage
4. All

✅ Correct Answer: 2

The resolution of a printer is numerically measured in

1. DPI
2. PPI
3. LPM
4. All

✅ Correct Answer: 1

Which of the following device is/are both input and output devices?

1. Plotter
2. Modems
3. Touch screen
4. All except plotter

✅ Correct Answer: 4

Which of the following device uses a pen pencil marker or other writing tools for creating vector graphics?

1. Speaker
2. Plotter
3. Electrostatic printer
4. Projector

✅ Correct Answer: 2

What is the full form of USB in data cables?

1. Universal Structural Bus
2. Unicode Serial Bus
3. Universal Serial Bus
4. Universal Smart Bus

✅ Correct Answer: 3

Which port is used to connect audio and video multimedia devices like video camera?

1. Parallel Port
2. Serial Port
3. USB
4. Firewire

✅ Correct Answer: 4

Which of the following port has slow speed data transmission?

1. Parallel Port
2. Serial Port
3. USB
4. Firewire

✅ Correct Answer: 2

Which port is used to connect a printer to the computer system?

1. Firewire
2. Serial Port
3. Parallel Port
4. Both a and b

✅ Correct Answer: 3

Which port is used to connect Hard drive and new DVD drive in the computer system?

1. Parallel Port
2. Serial Port
3. Firewire
4. Both a and b

✅ Correct Answer: 3

Which of the following software can interpret voice data into words that can be understood by a computer?

1. Word Recognition Software
2. Speech Recognition Software
3. Speech Input Software
4. Talking Software

✅ Correct Answer: 2

External devices such as keyboards modems printers and projectors are known as

1. add-on devices
2. PC expansion slot devices
3. peripherals
4. None

✅ Correct Answer: 3

Which of the following are properties of USB ports?

1. Platform independent
2. Platform dependent
3. Software dependent
4. Software independent

✅ Correct Answer: 1

The data transfer from the central processing unit to peripheral devices of computer is achieved through

1. interfaces
2. buffer memory
3. modems
4. I/O ports

✅ Correct Answer: 4

Which of the following generates high-quality output?

1. Impact printer
2. Non-impact printer
3. Plotter
4. Scanner

✅ Correct Answer: 2