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WorksheetsComputer Hardware and Networks Worksheet
Total questions: 99
Worksheet time: 50mins
What is the purpose of the heat sink?
Store data
Cool down the CPU
Process instructions
Increase speed
Which device is used to scan images or documents?
Printer
Scanner
Projector
Webcam
A computer network is:
A single large computer
A group of connected computers that share resources
A programming tool
A storage device
Which network covers a small area like a building?
WAN
LAN
MAN
PAN
A device that forwards data between networks is a:
Switch
Hub
Router
Modem
Which topology connects all devices to a central node?
Ring
Star
Bus
Mesh
The protocol responsible for IP addressing is:
TCP
HTTP
Which of the following is a protocol used for sending email?
SMTP
HTTP
FTP
IP
Which device divides a network into multiple collision domains?
Hub
Switch
Repeater
Modem
WAN stands for:
Wide Area Network
Wireless Access Node
Web Application Network
Wired Area Node
The main purpose of a firewall is:
Speeding up Internet
Blocking unauthorized access
Connecting printers
Storing user data
What is a computer virus?
A) A hardware part
B) A self-replicating malicious program
C) A search engine
D) A mobile app
A computer virus can:
Clean the system
Damage or delete files
Improve graphics
Increase RAM size
Which device often spreads viruses?
USB flash drives
Headphones
Monitor
Printer
A virus that spreads through networks automatically is called:
Driver
Worm
Editor
Browser
A dangerous malware pretending to be safe software is:
Spreadsheet
Trojan horse
Text file
Antivirus
Ransomware usually:
Plays music
Locks files and demands payment
Speeds up the system
Installs fonts
The main goal of antivirus software is to:
Change themes
Detect and remove malware
Edit photos
Which method helps protect your computer?
Opening unknown emails
Downloading cracked software
Updating the operating system
Turning off firewall
Which malware records user keystrokes?
Keylogger
Firewall
Speaker
Compiler
Pop-ups and slow performance may indicate:
Strong internet
Virus infection
New hardware
High battery
Which file type is more risky to open from unknown senders?
.txt
.exe
.jpg
A worm spreads:
Only through USB
Through networks without a host file
Through Bluetooth only
Only in offline systems
The main purpose of a firewall is to:
Display images
Protect network traffic
Increase speaker volume
Fix printers
Spyware is designed to:
Clean the computer
Steal information
Speed up the computer
Fix software bugs
Which of the following is a function of spyware?
Monitor user activity secretly
Speed up downloads
Install new apps
Monitor user activity secretly
Which action reduces virus risk?
Using strong passwords
Downloading from random websites
Turning off antivirus
Sharing USBs with everyone
An email asking you to click a strange link is likely:
A secure message
Phishing
A backup reminder
A driver update
A macro virus infects:
Printers
Documents like Word or Excel
Cameras
USB keyboards
Which of the following is NOT malware?
Worm
Virus
Trojan
Router
Which malware hides inside the system and disguises its actions?
Rootkit
Notepad
Folder
Browser history
The safest way to remove a virus is:
Restart the device
Format without backup
Use trusted antivirus software
Ignore the problem
The difference between RAM and ROM is:
RAM is volatile memory, while ROM is non-volatile memory.
RAM stores permanent data, while ROM stores temporary data.
RAM is used only for graphics, while ROM is used for processing.
RAM and ROM are both used for permanent storage.
The difference between Data and Information is:
Data is raw facts; Information is processed data.
Data and Information are the same.
Information is always numerical; Data is always textual.
Data is processed; Information is raw facts.
Q3: Select the characteristics of the First Generation of computers.
Used vacuum tubes for circuitry and magnetic drums for memory
Used microprocessors and integrated circuits
Had touch screen interfaces and wireless connectivity
Were based on artificial intelligence and quantum computing
The main difference between the Second Generation and the Third Generation of computers is:
Second Generation used transistors, while Third Generation used integrated circuits.
Second Generation used vacuum tubes, while Third Generation used transistors.
Second Generation used integrated circuits, while Third Generation used microprocessors.
Second Generation used microprocessors, while Third Generation used artificial intelligence.
Q5: Personal Computer and Super Computer are different in terms of their processing power and usage. Which of the following best describes the difference between them?
Personal Computers are designed for individual use, while Super Computers are used for complex scientific calculations.
Super Computers are mainly used for gaming, while Personal Computers are used for weather forecasting.
Personal Computers are faster than Super Computers in processing data.
Super Computers are less expensive and less powerful than Personal Computers.
Select the correct difference between Software and Hardware, along with examples.
Software refers to programs and applications like MS Word, while Hardware refers to physical components like a keyboard.
Software refers to physical parts like a mouse, while Hardware refers to applications like Photoshop.
Software and Hardware both refer to physical devices such as printers and monitors.
Software and Hardware are both types of computer programs.
A computer virus is defined as:
A malicious software program that can replicate itself and spread to other computers.
A device used to store computer data.
A type of computer hardware component.
A programming language used for web development.
What happens if antivirus software is not updated?
The computer becomes vulnerable to new viruses.
The antivirus software works faster.
The computer's internet speed increases.
The software automatically updates itself.
Computer Networks are defined as:
A group of interconnected computers that can share resources and information.
A single computer used for personal tasks.
A device used to store data only.
A program that runs on a computer.
Q10: Select the correct example of Software and Hardware, and mention their difference.
Software: MS Word, Hardware: Keyboard. Software is a set of instructions, Hardware is a physical device.
Software: Keyboard, Hardware: MS Word. Software is a physical device, Hardware is a set of instructions.
Software: Monitor, Hardware: Windows OS. Software is a physical device, Hardware is a set of instructions.
Software: Printer, Hardware: Excel. Software is a physical device, Hardware is a set of instructions.
a. (111010)₂ = (______)₁₀
58
52
62
48
b. (11010111)₂ = (______)₈
327
247
357
217
c. (11010111)₂ = (______)₁₆
D7
B7
C8
A9
d. (2705)₈ = (______)₂
1011100101
1101011010
1001110101
1110100101
e. (F12A)₁₆ = (______)₂
1111000100101010
1111000010101010
1111100100101010
1111000101101010
1- (11101)₂ + (10111)₂ = (______)₂
110100
101010
111000
100111
2- (111010)₂ - (110011)₂ = (______)₂
1111
1011
1100
1001
A computer is defined as:
An electronic device that processes data and performs tasks according to instructions.
A device used only for playing music.
A machine that can only store books.
A tool for drawing pictures by hand.
Hardware and Software can be compared using examples from the lecture. Which of the following best illustrates the difference between hardware and software?
Hardware refers to the physical components like a keyboard, while software refers to programs like Microsoft Word.
Hardware refers to computer programs, while software refers to the monitor and mouse.
Hardware and software are both physical parts of a computer.
Hardware and software are both types of computer programs.
What is hardware in a computer system?
Hardware is physical components you can see and touch such as keyboard.
Hardware is the software programs that run on a computer.
Hardware refers to internet websites accessed by a computer.
Hardware is the electricity that powers a computer.
What is software in a computer system?
Software is programs and instructions that tell the computer what to do such as MS Word and PowerPoint.
Software is the physical parts of a computer like the keyboard and mouse.
Software is the electricity that powers the computer.
Software is the internet connection used by the computer.
The Five Core Functions of a computer system are:
Input, Output, Processing, Storage, Control
Input, Output, Networking, Security, Control
Input, Output, Processing, Gaming, Storage
Input, Output, Processing, Display, Storage
What is data in the context of computer systems?
Data is raw fact and figures without context.
Data is processed information ready for use.
Data is a set of instructions for the computer.
Data is a graphical representation of information.
What is information in the context of computer systems?
Information is processed data with meaning and context.
Information is raw data without any processing.
Information is a type of computer hardware.
Information is a programming language.
The characteristics that make computers powerful include:
Speed, accuracy, storage, and automation
Limited memory and slow processing
Manual operation and low reliability
Inability to process data quickly
What are the limitations of a computer?
A computer has no intelligence, no emotions or feelings.
A computer can think creatively like humans.
A computer can feel happiness and sadness.
A computer can make decisions based on emotions.
Briefly explain the technology of the five computer generations.
The five computer generations are distinguished by vacuum tubes, transistors, integrated circuits, microprocessors, and artificial intelligence.
The five computer generations are based on mechanical calculators, abacuses, punch cards, floppy disks, and cloud computing.
The five computer generations are defined by the use of typewriters, telegraphs, smartphones, tablets, and smartwatches.
The five computer generations are categorized by analog signals, digital signals, wireless signals, fiber optics, and quantum computing.
The three main parts of a computer are:
CPU, Monitor, Keyboard
CPU, Mouse, Printer
CPU, Memory, Input/Output devices
Monitor, Mouse, Speaker
The function of the System Unit is:
To house and protect the computer's main components such as the motherboard, CPU, and memory.
To display images and videos to the user.
To provide power supply to external devices only.
To store data permanently like a hard disk.
A digital signal has how many states?
One
Two
Three
Four
A "bit" is:
the smallest unit of data in computing, representing a binary value (0 or 1)
a large storage device
a type of computer virus
a programming language
A byte is:
a unit of digital information consisting of 8 bits
a unit of digital information consisting of 16 bits
a unit of digital information consisting of 4 bits
a unit of digital information consisting of 1 bit
One byte represents:
8 bits
16 bits
4 bits
1 bit
The Motherboard is:
the main circuit board that connects all components of a computer
a type of computer memory
the power supply unit of a computer
the display screen of a computer
It is the main circuit board of the system unit that allows all the components of a computer to communicate with each other. Name items found inside the system unit?
CPU, RAM, Motherboard, Hard disk drive, fan, and power supply
Monitor, Keyboard, Mouse, Printer, Scanner
USB drive, CD, DVD, External hard disk
Speakers, Microphone, Webcam, Joystick
What is the "Processor" (Chip)?
A small piece of semiconducting material that carries electronic signals.
A device used to store data permanently.
A peripheral used for inputting text.
A program that manages computer resources.
What does the System Clock do?
It controls the timing of all computer operations.
It stores all the data in the computer.
It manages the computer's power supply.
It handles the computer's graphics processing.
What is the difference between RAM and ROM?
RAM is temporary (volatile) while ROM is permanent (nonvolatile).
RAM is permanent (nonvolatile) while ROM is temporary (volatile).
RAM and ROM are both permanent (nonvolatile).
RAM and ROM are both temporary (volatile).
What happens to data in RAM when the computer is turned off?
All data in RAM is lost.
Data in RAM is saved to the hard drive automatically.
Data in RAM remains unchanged.
Data in RAM is transferred to ROM.
What is "Flash Memory"?
It is a type of nonvolatile memory that can be erased and rewritten.
It is a type of volatile memory used for temporary storage.
It is a type of optical storage device.
It is a type of magnetic tape used for backups.
What are "Expansion Slots"?
They are sockets on the motherboard that can hold adapter cards.
They are external ports for connecting USB devices.
They are slots for inserting RAM modules only.
They are connectors for attaching hard drives directly.
What is the size of a typical processor chip?
It is usually no bigger than one-half-inch square.
It is usually about the size of a football.
It is usually several feet long.
It is usually as large as a book.
What is the purpose of "Fans" inside the system unit?
To cool the components inside the system unit.
To increase the speed of the processor.
To store data permanently.
To provide power to the motherboard.
Fans are used to cool the electronic components. What type of ports and connectors?
USB, USB 2, USB 3, Bluetooth, and Firewire
HDMI, VGA, DVI, DisplayPort, and S-Video
Ethernet, RJ-45, Fiber Optic, Coaxial, and BNC
PS/2, Serial, Parallel, SCSI, and Molex
What is CPU?
Brain of computer
A type of software
A storage device
A computer virus
What is the main purpose of an input device?
To enter data and instructions into the computer.
To display output on the screen.
To store data permanently.
To print documents.
What is the input device?
It is any hardware component that allows the user to enter data and instructions into a computer.
It is a software program that processes data.
It is a device that displays output to the user.
It is a storage device used to save files.
What type of input device?
Mouse, touchpad, Trackball, touch screen, Optical scanner, Pen input, digital camera, Audio and video input.
Printer, monitor, speaker, projector, plotter.
RAM, ROM, Hard disk, SSD, Cache memory.
Operating system, application software, utility software, device driver.
What is output device?
Text, audio, video and graphics
Keyboard and mouse
Scanner and joystick
CPU and RAM
What type of output device?
Speakers, Printer, data projector, fax machine, White boards interactive, display Monitor
Keyboard, Mouse, Scanner, Microphone
RAM, ROM, Hard Disk, SSD
Modem, Network Card, Bluetooth Adapter
What is storage?
It device can record and retrieve data and instructions and information
It is a type of software used for editing images
It is a programming language used for web development
It is a tool for measuring temperature
What type of storage device?
Hard Disk Drive
Monitor
Keyboard
Printer
Magnetic disk, hard disk, portable hard disk, solid state drives, Optical disks (CD, DVD), Smart card, cloud storage, USB flash drive. What type of software?
System software
Application software
Utility software
Programming software
Type of system software?
System software
Application software
Utility software
Firmware
Operating system, utilities, device drives and language translators. What is the application software?
Application software includes programs that do real work for user, e.g., payroll systems and manage student database.
Application software is responsible for managing hardware resources.
Application software is used to translate programming languages.
Application software is a type of system software.
Application software includes programs that do real work for user. Ex: payroll systems and manage student database. Categories of application software?
Business software, graphic and multimedia, home/personal/education, communication
Operating systems, device drivers, utilities, firmware
Input devices, output devices, storage devices, networking devices
Programming languages, compilers, assemblers, linkers
What type of application software?
Proprietary and In-house
Open Source
Shareware
Freeware
Fill in the blank: ______ is software which is developed for a specific company for their requirement.
Contract
Open-source
Off-the-shelf
Shareware
Fill in the blank: ______ is a program that can be used without any changes.
Off-the-shelf
Custom-built
Beta-version
Prototype
Which of the following is an example of packaged software?
Linux
Microsoft Office
Security code system
Antivirus
Which of the following is an example of custom software?
Security code system
Google Docs
Moodle
Antivirus
Which of the following is an example of a web application?
Google Docs
Linux
Microsoft Office
Antivirus
Which of the following is an example of open source software?
Moodle
Microsoft Office
Antivirus
Dino numbers
Which of the following is an example of shareware?
Dino numbers
Antivirus
Google Docs
Security code system
Which of the following is an example of freeware?
Antivirus
Microsoft Office
Moodle
Security code system
Type of utilities?
Hardware utilities, File compression utilities, backup, uninstall
Word processing, spreadsheet, presentation, database
Operating system, device drivers, firmware, kernel
Internet browser, email client, media player, photo editor
What features of system software?
Close to system, fast in speed, difficult to design, and difficult to understand
Easy to design, slow in speed, far from system, and easy to understand
User-friendly, graphical interface, slow processing, and easy to use
Requires internet, cloud-based, simple architecture, and easy to update
