WorksheetsComputer Hardware and Logic Gates Quiz
Total questions: 55
Worksheet time: 40mins
What are the physical components of a computer called?
Software
Hardware
Firmware
Middleware
The primary function of input devices is:
Data storage
Displaying output
Allowing human interaction with the computer
Powering the computer
Which of these is NOT an input device?
Mouse
Scanner
Monitor
Keyboard
The device that performs calculations and processes data in a computer is the:
System unit
Central Processing Unit
Output device
Storage device
Which type of storage loses data when the power is turned off?
ROM
Flash drive
RAM
DVD
What does RAM stand for?
Read-Accessible Memory
Random Access Memory
Read and Access Memory
Random Algorithm Memory
What is the function of ROM in a computer?
Temporary storage
Permanent storage of essential instructions
Stores user data
Processes program instructions
What does the arithmetic logic unit (ALU) do?
Controls input/output devices
Executes arithmetic and logical operations
Stores data temporarily
Displays processed data
Which device is used to input handwritten data?
Graphics tablet
Joystick
Modem
Trackball
A touchpad is commonly found on:
Desktop computers
Laptops
Smartphones
Projectors
What type of memory is non-volatile?
RAM
ROM
Cache
Virtual memory
Which device outputs a tangible representation of digital data?
Monitor
Printer
Projector
Modem
The logic gate that produces a high output only if all its inputs are high is the:
OR gate
AND gate
NOT gate
XOR gate
A NAND gate is a combination of which two gates?
OR and NOT
AND and NOT
XOR and AND
NOR and NOT
What is the primary function of a modem?
Printing documents
Converting data for transmission
Storing digital data
Displaying data
Which storage device has the highest capacity?
Floppy disk
CD
Hard disk
Smart card
An OR gate gives a high output when:
All inputs are low
At least one input is high
Both inputs are low
None of the above
The NOT gate is also called:
Buffer
Amplifier
Inverter
Switch
Which logic gate outputs high only when inputs are different?
XOR
XNOR
NOR
AND
The truth table for a NOR gate shows high output when:
At least one input is high
Both inputs are low
All inputs are high
None of the above
Which of the following is an input device used for gaming?
Joystick
Monitor
Printer
Speaker
What does the acronym CPU stand for?
Central Processing Unit
Central Program Unit
Control Processing Unit
Control Program Unit
A light pen is used for:
Writing on paper
Interacting with a screen
Printing documents
Scanning images
Which of the following is NOT a storage device?
Hard disk
Flash drive
Projector
Floppy disk
The function of the arithmetic logic unit (ALU) includes:
Fetching instructions
Performing arithmetic and logical operations
Controlling input/output devices
Storing instructions permanently
Which of the following is a volatile memory?
RAM
ROM
Hard disk
CD-ROM
A device that combines printer, scanner, copier, and fax is called:
Multifunction device
Modem
Touchpad
Digital camera
Which type of gate is represented by the Boolean equation X=A⋅BX=A⋅B?
AND gate
OR gate
NOT gate
XOR gate
What type of memory is cleared when the computer is powered off?
RAM
ROM
Hard disk
Flash memory
A combination of AND and NOT gates is called a:
NAND gate
NOR gate
XOR gate
XNOR gate
A modem is an example of a:
Storage device
Communication device
Input device
Output device
The XNOR gate outputs high when:
Inputs are both high
Inputs are both low
Inputs are the same
Inputs are different
Which memory is used to permanently store the startup instructions of a computer?
RAM
ROM
Cache
Virtual memory
The device that projects images onto a surface is called:
Printer
Monitor
Projector
Scanner
The control unit is part of which computer component?
ALU
CPU
Storage device
Input device
Which device reads marks or codes using light?
Optical recognition device
Joystick
Modem
Digitizer
Which of the following storage devices is portable and widely used for data transfer?
Hard disk
Floppy disk
Flash drive
CD-ROM
A device that electronically captures handwritten text or drawings is a:
Scanner
Graphics tablet
Touchpad
Light pen
What type of logic gate is used in a binary adder circuit?
XOR and AND gates
OR and NAND gates
NOT and XOR gates
NOR and AND gates
Which output device produces hard copies?
Printer
Projector
Monitor
Speaker
What happens to the data in RAM when the computer is turned off?
It is saved permanently
It is erased
It is transferred to ROM
It is stored on the hard drive
Which of these is NOT a feature of secondary memory?
Volatile
High capacity
Non-volatile
Long-term storage
The NOT gate performs what operation?
AND
OR
Negation
Multiplication
A CPU's primary components include:
Monitor and printer
RAM and ROM
ALU and control unit
Mouse and keyboard
Which of the following is a function of the control unit?
Performing arithmetic operations
Coordinating system operations
Storing instructions temporarily
Generating sound output
In logic gates, the term "low" is equivalent to:
True
1
False
Output
What type of logic gate outputs low when all inputs are high?
NOR
AND
OR
NAND
A personal digital assistant (PDA) is primarily used for:
Gaming
Organizing tasks
Designing graphics
Performing mathematical calculations
Which of these is NOT a function of a modem?
Receiving data
Transmitting data
Processing data
Converting data
The circle in the logic symbol for a NOT gate represents:
Inversion
Addition
Multiplication
Output
Define computer hardware and list four examples.
Explain the difference between RAM and ROM.
What is the role of the control unit in the CPU?
Describe how a touch screen works as both an input and output device.
Explain the function and application of a NOT gate in a digital circuit.
