Part 1 Hardware
Which of the following is considered the "brain" of the computer?
A. RAM
B. Monitor
C. CPU
D. Hard Disk
E. GPU
Answer: C
Which device is used to permanently store data?
A. RAM
B. ROM
C. Cache
D. Hard Disk
E. Register
Answer: D
Which of the following is NOT an output device?
A. Printer
B. Monitor
C. Speaker
D. Scanner
E. Projector
Answer: D
Which component is used for temporary data storage while a program is running?
A. ROM
B. RAM
C. SSD
D. BIOS
E. HDD
Answer: B
Which port is commonly used to connect monitors?
A. USB
B. HDMI
C. Ethernet
D. Audio Jack
E. PS/2
Answer: B
Which of the following is a primary storage device?
A. SSD
B. RAM
C. DVD
D. Flash Drive
E. Hard Disk
Answer: B
What does BIOS stand for?
A. Binary Input Output System
B. Basic Input Output System
C. Basic Integrated Output System
D. Binary Internal Output System
E. Bitwise Input Output Sequence
Answer: B
Which of these is an input device?
A. Projector
B. Keyboard
C. Headphones
D. Monitor
E. Plotter
Answer: B
Which device uses laser technology to read or write data?
A. Flash Drive
B. Floppy Disk
C. CD Drive
D. HDD
E. RAM
Answer: C
Which type of memory is non-volatile?
A. RAM
B. Cache
C. ROM
D. Registers
E. L1 Memory
Answer: C
Which part of the CPU performs arithmetic and logic operations?
A. CU
B. ALU
C. Register
D. HDD
E. RAM
Answer: B
Which expansion slot is commonly used for modern graphics cards?
A. PCI
B. AGP
C. ISA
D. PCIe
E. IDE
Answer: D
Which component is essential for cooling the CPU?
A. Power Supply
B. Heat Sink
C. Speaker
D. Motherboard
E. GPU
Answer: B
Which of the following devices is used to print large-scale images?
A. Inkjet Printer
B. Laser Printer
C. Dot Matrix Printer
D. Plotter
E. Thermal Printer
Answer: D
What type of storage device is an SSD?
A. Magnetic
B. Optical
C. Flash
D. Mechanical
E. Thermal
Answer: C
Which connector is used for wired networking?
A. VGA
B. HDMI
C. USB
D. RJ-45
E. SATA
Answer: D
Which component connects all parts of the computer together?
A. Hard Drive
B. RAM
C. Motherboard
D. CPU
E. SSD
Answer: C
What does GPU stand for?
A. General Processing Unit
B. Graphical Processing Unit
C. Graphite Processor Unit
D. Grid Processor Unit
E. Generated Power Unit
Answer: B
Which of the following is a volatile memory?
A. ROM
B. Flash
C. SSD
D. RAM
E. Hard Disk
Answer: D
What kind of memory is used to store firmware?
A. RAM
B. ROM
C. Cache
D. HDD
E. VRAM
Answer: B
Which component supplies power to the entire system?
A. CPU
B. Battery
C. PSU
D. RAM
E. SSD
Answer: C
Which type of monitor uses liquid crystals?
A. CRT
B. LED
C. OLED
D. LCD
E. Plasma
Answer: D
Which connector is primarily used to power internal drives?
A. HDMI
B. Molex
C. RJ-45
D. SATA
E. USB
Answer: B
Which form factor refers to the physical size of a motherboard?
A. GHz
B. GB
C. ATX
D. DPI
E. CMOS
Answer: C
Which memory type is fastest?
A. RAM
B. SSD
C. Cache
D. HDD
E. ROM
Answer: C
Which of the following interfaces is the fastest for data transfer?
A. USB 2.0
B. SATA
C. USB 3.0
D. Thunderbolt
E. FireWire
Answer: D
Which key component determines the performance of video games?
A. RAM
B. CPU
C. SSD
D. GPU
E. PSU
Answer: D
What component retains the date/time when the computer is off?
A. PSU
B. CPU
C. CMOS Battery
D. SSD
E. RAM
Answer: C
Which of the following is not a valid storage device?
A. USB Drive
B. SSD
C. NIC
D. CD
E. HDD
Answer: C
Which display technology offers the deepest blacks and best contrast?
A. CRT
B. LCD
C. LED
D. OLED
E. Plasma
Answer: D
What is the main function of the Control Unit in the CPU?
A. Perform arithmetic operations
B. Store data
C. Manage system memory
D. Control input/output devices
E. Direct operations of the processor
Answer: E
Which of the following is NOT a type of printer?
A. Inkjet
B. Laser
C. Plotter
D. Optical
E. Dot Matrix
Answer: D
Which of these is used for connecting internal storage devices?
A. HDMI
B. SATA
C. USB
D. VGA
E. RJ-45
Answer: B
What type of memory is used for graphics cards?
A. EEPROM
B. ROM
C. VRAM
D. DRAM
E. SRAM
Answer: C
Which of the following best describes a solid-state drive (SSD)?
A. Magnetic storage
B. Optical storage
C. Volatile memory
D. Mechanical device
E. Flash-based storage
Answer: E
Which device translates digital signals into sound?
A. Microphone
B. Headphones
C. Sound Card
D. CPU
E. VGA
Answer: C
Which of the following interfaces is obsolete for connecting keyboards and mice?
A. USB
B. FireWire
C. PS/2
D. Bluetooth
E. SATA
Answer: C
What is the function of a heat sink?
A. Increase processor speed
B. Cool electronic components
C. Store data
D. Boost power supply
E. Transfer data
Answer: B
Which type of memory is typically used as cache memory?
A. ROM
B. DRAM
C. SRAM
D. Flash
E. PROM
Answer: C
What does the term “form factor” refer to in PC hardware?
A. CPU speed
B. Display resolution
C. Physical size and layout
D. Power supply capacity
E. Operating frequency
Answer: C
Which of these is a pointing device?
A. Microphone
B. Mouse
C. Speaker
D. Monitor
E. Keyboard
Answer: B
Which component stores data even when the computer is turned off?
A. RAM
B. ROM
C. CPU
D. Cache
E. PSU
Answer: B
What kind of slot would you use to install RAM?
A. PCIe
B. AGP
C. DIMM
D. SATA
E. IDE
Answer: C
Which of these components typically has a fan attached?
A. RAM
B. CPU
C. SSD
D. DVD Drive
E. CMOS
Answer: B
What is the role of the NIC (Network Interface Card)?
A. Manage graphics
B. Connect to a network
C. Boost CPU speed
D. Cool the computer
E. Connect to external displays
Answer: B
Which memory type is used for the system’s startup instructions?
A. RAM
B. ROM
C. HDD
D. SSD
E. VRAM
Answer: B
Which of the following is an example of a biometric input device?
A. Webcam
B. Keyboard
C. Fingerprint scanner
D. Microphone
E. Barcode reader
Answer: C
Which device connects multiple computers in a network?
A. Router
B. Switch
C. Hub
D. All of the above
E. None of the above
Answer: D
Which port is commonly used to connect audio devices?
A. VGA
B. HDMI
C. Audio Jack (3.5mm)
D. Ethernet
E. SATA
Answer: C
Which of these is NOT part of the motherboard?
A. CPU socket
B. RAM slot
C. Power connector
D. CMOS battery
E. Monitor screen
Answer: E
Essay
1. What is computer hardware?
Answer:
Computer hardware refers to the physical components of a computer system that you can see and touch. These include the central processing unit (CPU), monitor, keyboard, mouse, hard drive, motherboard, and other peripheral devices.
2. What is the function of the CPU in a computer?
Answer:
The CPU (Central Processing Unit) is often called the "brain" of the computer. It performs all the instructions from programs and software by carrying out calculations, data processing, and control tasks.
3. What is the difference between RAM and ROM?
Answer:
RAM (Random Access Memory) is temporary memory used by the computer to store data while programs are running. It is volatile, meaning data is lost when the computer is turned off. ROM (Read-Only Memory) is non-volatile memory that stores permanent instructions for booting up the computer.
4. What is a motherboard?
Answer:
The motherboard is the main circuit board of the computer. It connects all hardware components, including the CPU, memory, storage, and peripheral devices, and allows them to communicate with each other.
5. What is the purpose of a hard drive or SSD?
Answer:
A hard drive (HDD) or solid-state drive (SSD) is used to store data permanently. This includes the operating system, software applications, and files. SSDs are faster and more durable than traditional HDDs.
6. What are input devices?
Answer:
Input devices are hardware components used to enter data into a computer. Common input devices include the keyboard, mouse, scanner, microphone, and webcam.
7. What are output devices?
Answer:
Output devices display or present data from the computer to the user. Examples include monitors, printers, speakers, and projectors.
8. What is a graphics card and why is it important?
Answer:
A graphics card (GPU) is responsible for rendering images, videos, and animations. It is especially important for gaming, video editing, and other graphic-intensive tasks. It can be integrated or dedicated.
9. How does a power supply unit (PSU) work in a computer?
Answer:
The PSU converts electricity from a wall outlet into usable power for the computer’s internal components. It ensures the system receives a stable and safe voltage.
10. What are peripheral devices and give examples?
Answer:
Peripheral devices are external hardware connected to the computer to add functionality. Examples include printers, external hard drives, USB flash drives, and game controllers.
Part 2 Software
What is software?
A. Physical component of a computer
B. Part of the motherboard
C. Instructions that tell the hardware what to do
D. Display screen content
E. Cooling mechanism
Answer: C
Which of the following is an operating system?
A. MS Word
B. Google Chrome
C. Windows 11
D. Adobe Photoshop
E. Intel i7
Answer: C
Which software type controls and manages hardware?
A. Application software
B. Firmware
C. Operating system
D. Utility software
E. Compiler
Answer: C
Which of these is an example of system software?
A. MS Excel
B. VLC Player
C. Linux
D. WhatsApp
E. Photoshop
Answer: C
What type of software is used to create documents?
A. Spreadsheet
B. Word processor
C. Compiler
D. Browser
E. Driver
Answer: B
Which of the following is not application software?
A. Google Docs
B. PowerPoint
C. Disk Defragmenter
D. VLC Media Player
E. MS Paint
Answer: C
What type of software is Microsoft Excel?
A. Word Processor
B. Spreadsheet
C. Presentation
D. Database
E. Web Browser
Answer: B
Which of the following is an example of open-source software?
A. Windows
B. Microsoft Office
C. Linux
D. Adobe Illustrator
E. CorelDRAW
Answer: C
Which software allows you to browse the internet?
A. Photoshop
B. Excel
C. Chrome
D. PowerPoint
E. Oracle
Answer: C
Which of the following is NOT a function of an operating system?
A. File management
B. Device control
C. Presentation design
D. Memory management
E. Process scheduling
Answer: C
What type of software converts code into machine language?
A. Word Processor
B. Interpreter
C. Compiler
D. Translator
E. Simulator
Answer: C
What is an example of a utility software?
A. Excel
B. Antivirus
C. Firefox
D. Paint
E. Skype
Answer: B
Which of the following is programming software?
A. Turbo C++
B. MS Word
C. Adobe Reader
D. Chrome
E. Excel
Answer: A
Which of the following is not a programming language?
A. Python
B. Java
C. C++
D. Oracle
E. HTML
Answer: D
What does GUI stand for?
A. Graphical User Interface
B. General User Input
C. Graphic Universal Interface
D. Guided User Interaction
E. Generic User Interface
Answer: A
Which of these is database software?
A. MySQL
B. PowerPoint
C. Paint
D. Firefox
E. VLC
Answer: A
Which software helps in making presentations?
A. Notepad
B. Excel
C. PowerPoint
D. Photoshop
E. MySQL
Answer: C
Which of the following is an email client?
A. Notepad
B. Outlook
C. Excel
D. VLC
E. Illustrator
Answer: B
Which of the following is not part of system software?
A. Compiler
B. Browser
C. Device driver
D. Operating system
E. BIOS
Answer: B
What does software license mean?
A. Software expiration
B. Software cost
C. Permission to use software legally
D. Product brand
E. Hardware guarantee
Answer: C
What is freeware?
A. Software you pay to use
B. Software that has limited access
C. Software that is free and open-source
D. Software available for free with no cost
E. Pirated software
Answer: D
What is the function of a driver?
A. Display videos
B. Run antivirus
C. Connect hardware with software
D. Browse the internet
E. Create spreadsheets
Answer: C
Which of these is an example of mobile operating systems?
A. Linux
B. macOS
C. Android
D. Ubuntu
E. Windows
Answer: C
Which of the following is NOT a word processor?
A. MS Word
B. Google Docs
C. LibreOffice Writer
D. Excel
E. WPS Writer
Answer: D
What is malware?
A. Security software
B. Useful software
C. Harmful software
D. Antivirus
E. Backup utility
Answer: C
Which of the following is proprietary software?
A. Linux
B. Ubuntu
C. Firefox
D. Microsoft Office
E. GIMP
Answer: D
Which is a cloud-based software?
A. Photoshop
B. Google Docs
C. PowerPoint
D. Notepad
E. Paint
Answer: B
Which software manages files and folders?
A. Word
B. File Explorer
C. Paint
D. Excel
E. Chrome
Answer: B
Which of these is a programming IDE?
A. VLC
B. Chrome
C. Visual Studio
D. Word
E. FileZilla
Answer: C
What is the purpose of an antivirus software?
A. Run games
B. View videos
C. Detect and remove malware
D. Display websites
E. Create documents
Answer: C
Which of these is NOT a function of utility software?
A. Disk cleanup
B. Antivirus scanning
C. Formatting text
D. File compression
E. Backup
Answer: C
What does SaaS stand for?
A. Software and Storage
B. Service as a Software
C. Software as a Service
D. Storage as a Service
E. Systems and Application Services
Answer: C
Which of these is a text editor?
A. Excel
B. PowerPoint
C. Notepad
D. VLC
E. Outlook
Answer: C
Which company develops the Windows OS?
A. Apple
B. Oracle
C. Microsoft
D. IBM
E. Google
Answer: C
What is the role of a compiler?
A. Send emails
B. Translate code
C. Play videos
D. Store passwords
E. Display images
Answer: B
Which of the following is a web browser?
A. Skype
B. Word
C. Edge
D. Excel
E. WinRAR
Answer: C
Which software helps in image editing?
A. VLC
B. Photoshop
C. Excel
D. Notepad
E. Outlook
Answer: B
Which of the following is a command-line OS?
A. Windows
B. Linux
C. DOS
D. macOS
E. Android
Answer: C
Which of the following is a spreadsheet program?
A. Notepad
B. PowerPoint
C. Word
D. Excel
E. Paint
Answer: D
Which of these is used to archive files?
A. Excel
B. WinRAR
C. Word
D. Edge
E. VLC
Answer: B
Which software is used for video editing?
A. Chrome
B. Premiere Pro
C. MS Word
D. Excel
E. Notepad
Answer: B
What is the function of a firewall?
A. Compress files
B. Scan viruses
C. Block unauthorized access
D. Store data
E. Edit photos
Answer: C
Which is NOT a valid file format for documents?
A. .docx
B. .xlsx
C. .pptx
D. .mp3
E. .odt
Answer: D
Which of these is developed by Apple Inc.?
A. Windows
B. Android
C. macOS
D. Ubuntu
E. Fedora
Answer: C
What does PDF stand for?
A. Portable Document Format
B. Public Document File
C. Printed Data File
D. Personal Document File
E. Programmed Data Format
Answer: A
Which software is used for coding in HTML and CSS?
A. Photoshop
B. Word
C. Excel
D. VS Code
E. Chrome
Answer: D
What is the main role of system software?
A. Make presentations
B. Manage system resources
C. Connect to internet
D. Write emails
E. Create drawings
Answer: B
Which of the following is NOT a software category?
A. Application
B. System
C. Utility
D. Firmware
E. Hardware
Answer: E
Which of these allows you to view PDFs?
A. VLC
B. Chrome
C. Word
D. Excel
E. FileZilla
Answer: B
Which of the following is a version control software?
A. Git
B. Excel
C. Paint
D. VLC
E. Word
Answer: A
Essay
1. What is computer software?
Answer:
Computer software is a set of instructions, programs, or data used to operate computers and execute specific tasks. Unlike hardware, software is not a physical component; it exists digitally and enables the hardware to function.
2. What are the main types of computer software?
Answer:
The two main types of software are system software and application software. System software includes the operating system and utility programs that manage hardware. Application software includes programs that perform specific user tasks like word processing, web browsing, or gaming.
3. What is an operating system (OS)?
Answer:
An operating system is a type of system software that manages computer hardware and software resources. It provides services for computer programs and acts as an interface between the user and the hardware. Examples include Windows, macOS, Linux, and Android.
4. What is the role of application software?
Answer:
Application software is designed to help users perform specific tasks. These tasks can include creating documents (Microsoft Word), managing data (Excel), editing photos (Photoshop), or browsing the internet (Chrome).
5. What is the difference between open-source and proprietary software?
Answer:
Open-source software is software with source code that anyone can inspect, modify, and enhance. Examples include Linux and LibreOffice. Proprietary software is owned by a company or individual and cannot be freely modified or shared. Examples include Microsoft Office and Adobe Photoshop.
6. How is software developed?
Answer:
Software is developed through a process known as the software development life cycle (SDLC). This includes steps such as planning, designing, coding, testing, and maintaining the software to ensure it meets user needs and performs reliably.
7. What is a software license?
Answer:
A software license is a legal agreement that outlines how software can be used and distributed. It specifies whether the software can be shared, modified, or installed on multiple devices.
8. What is the importance of software updates?
Answer:
Software updates are essential for improving performance, fixing bugs, and patching security vulnerabilities. Regular updates ensure that software remains compatible with new hardware and technologies.
9. What is utility software?
Answer:
Utility software is a type of system software designed to help manage, maintain, and control computer resources. Examples include antivirus programs, disk cleanup tools, and backup software.
10. How does software impact everyday life?
Answer:
Software plays a vital role in modern life. It powers smartphones, controls household appliances, facilitates communication, supports education and business, and enables entertainment. Without software, digital devices would not be functional.