NECO 2025/2026 Computer Studies Objective and Essay Questions and Answers

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NECO 2025/2026 Computer Studies Objective and Essay Questions and Answers

Contents
SECTION A: Objective Questions (1–60)NECO 2025/2026 Computer Studies Objective and Essay Questions and AnswersNECO 2025/2026 Computer Studies Objective and Essay Questions and AnswersNECO 2025/2026 Computer Studies – Essay Question AnswersQuestion 1Question 2Question 3Question 4Question 6

SECTION A: Objective Questions (1–60)

Instructions: Choose the correct option A–D that best answers each question.

  1. The physical parts of a computer system are called —
    A. software
    B. input
    C. output
    D. hardware
    Answer: D

  2. Which of the following is an output device?
    A. Mouse
    B. Keyboard
    C. Printer
    D. Scanner
    Answer: C

  3. A device used to enter data into the computer is known as —
    A. monitor
    B. printer
    C. keyboard
    D. speaker
    Answer: C

  4. Which of the following is a storage device?
    A. Mouse
    B. Monitor
    C. Hard disk
    D. Microphone
    Answer: C

  5. What is the brain of the computer?
    A. RAM
    B. CPU
    C. ROM
    D. UPS
    Answer: B

  6. Which of the following is an example of application software?
    A. Windows
    B. Microsoft Word
    C. ROM
    D. BIOS
    Answer: B

  7. Which one is not an input device?
    A. Keyboard
    B. Mouse
    C. Joystick
    D. Projector
    Answer: D

  8. The full meaning of ICT is —
    A. International Computer Technology
    B. Information and Communication Technology
    C. Internet and Computer Transmission
    D. Internal Communication Technique
    Answer: B

  9. Which of the following is used to protect a computer from power surges?
    A. RAM
    B. UPS
    C. CPU
    D. ROM
    Answer: B

  10. The main memory of a computer is also known as —
    A. CPU
    B. ROM
    C. RAM
    D. Hard disk
    Answer: C

  11. The process of starting a computer is called —
    A. scanning
    B. booting
    C. debugging
    D. refreshing
    Answer: B

  12. The rectangular area on the screen where windows, icons, and menus appear is the —
    A. wallpaper
    B. display
    C. desktop
    D. interface
    Answer: C

  13. Which of these is not an example of system software?
    A. MS Windows
    B. Linux
    C. Microsoft Excel
    D. macOS
    Answer: C

  14. The part of the CPU that performs calculations is the —
    A. RAM
    B. CU
    C. ALU
    D. ROM
    Answer: C

  15. A person who breaks into computer systems to steal or destroy data is called a —
    A. analyst
    B. user
    C. hacker
    D. manager
    Answer: C

  16. What is the full meaning of HTML?
    A. Hyper Text Making Language
    B. Hyper Transfer Markup Language
    C. Hyper Text Markup Language
    D. High Text Markup Language
    Answer: C

  17. The term “software” refers to —
    A. electronic circuits
    B. physical components
    C. computer programs
    D. output devices
    Answer: C

  18. An example of a web browser is —
    A. Google
    B. Firefox
    C. YouTube
    D. WhatsApp
    Answer: B

  19. A virus that replicates itself on multiple computers is known as —
    A. worm
    B. trojan
    C. spyware
    D. malware
    Answer: A

  20. Which of the following is not a type of computer virus?
    A. Trojan
    B. Worm
    C. Spyware
    D. Compiler
    Answer: D

  21. A device that connects computers to the internet is called a —
    A. printer
    B. monitor
    C. modem
    D. scanner
    Answer: C

  22. The process of arranging files and folders is called —
    A. organization
    B. formatting
    C. defragmentation
    D. alignment
    Answer: C

  23. Google Chrome is a type of —
    A. search engine
    B. web browser
    C. anti-virus
    D. hardware
    Answer: B

  24. The action of transferring files from the internet is called —
    A. uploading
    B. downloading
    C. pasting
    D. compiling
    Answer: B

  25. Which of the following is an output device?
    A. Mouse
    B. Webcam
    C. Monitor
    D. Keyboard
    Answer: C

NECO 2025/2026 Computer Studies Objective and Essay Questions and Answers

  1. Which of the following is a type of storage device?
    A. Monitor
    B. Flash drive
    C. Joystick
    D. Mouse
    Answer: B

  2. What is the full meaning of CPU?
    A. Central Printing Unit
    B. Central Processing Unit
    C. Computer Processing Utility
    D. Core Processing Unit
    Answer: B

  3. Which of these is not a programming language?
    A. BASIC
    B. HTML
    C. Java
    D. Google
    Answer: D

  4. The part of the CPU that directs and controls all activities is the —
    A. RAM
    B. CU
    C. ALU
    D. ROM
    Answer: B

  5. A software that allows users to type and edit text is called —
    A. spreadsheet
    B. browser
    C. word processor
    D. compiler
    Answer: C

  6. The brain of the computer is also referred to as the —
    A. motherboard
    B. CPU
    C. ROM
    D. keyboard
    Answer: B

  7. ROM stands for —
    A. Read Over Memory
    B. Random Overwrite Memory
    C. Read Only Memory
    D. Read Over Machine
    Answer: C

  8. An example of spreadsheet software is —
    A. CorelDraw
    B. MS Excel
    C. WordPad
    D. Photoshop
    Answer: B

  9. What is the use of anti-virus software?
    A. Creating documents
    B. Playing music
    C. Scanning for threats
    D. Connecting to the internet
    Answer: C

  10. Which of the following is an example of system software?
    A. Microsoft Word
    B. Adobe Photoshop
    C. Windows 10
    D. Notepad
    Answer: C

  11. Which of the following units of storage is the largest?
    A. Kilobyte
    B. Byte
    C. Megabyte
    D. Terabyte
    Answer: D

  12. A clickable word or object on a webpage that takes you to another page is a —
    A. virus
    B. hyperlink
    C. tag
    D. browser
    Answer: B

  13. What type of memory loses its data when power is turned off?
    A. ROM
    B. RAM
    C. Hard disk
    D. CD-ROM
    Answer: B

  14. The standard pointing device used on laptops is the —
    A. scanner
    B. touchpad
    C. trackball
    D. joystick
    Answer: B

  15. A device used to digitize printed documents is —
    A. monitor
    B. printer
    C. scanner
    D. flash drive
    Answer: C

  16. The full meaning of URL is —
    A. Uniform Resource Locator
    B. Universal Reference Label
    C. Uniform Reference Label
    D. Unified Routing Location
    Answer: A

  17. What does ICT stand for?
    A. Information and Coding Technology
    B. Information Communication Technology
    C. Inter-Computer Technology
    D. Internal Communication Technology
    Answer: B

  18. The general term for harmful software is —
    A. adware
    B. malware
    C. spyware
    D. shareware
    Answer: B

  19. In Microsoft Word, the file extension for documents is —
    A. .txt
    B. .doc or .docx
    C. .xls
    D. .jpg
    Answer: B

  20. What does GUI stand for?
    A. General User Instruction
    B. Graphical User Interface
    C. Global Uniform Interface
    D. Graphical Utility Input
    Answer: B

  21. Which of the following storage devices has the highest capacity?
    A. CD
    B. DVD
    C. Blu-ray
    D. USB flash drive
    Answer: C

  22. Which of the following is not used in a presentation package?
    A. Slides
    B. Animation
    C. Formulas
    D. Transitions
    Answer: C

  23. A collection of related web pages linked together is called a —
    A. file
    B. website
    C. browser
    D. URL
    Answer: B

  24. The act of illegally accessing computer systems is called —
    A. hacking
    B. phishing
    C. spamming
    D. formatting
    Answer: A

  25. Data processed into meaningful form is known as —
    A. record
    B. field
    C. information
    D. input
    Answer: C

  26. Which of the following is not a feature of email?
    A. Sending messages
    B. Receiving messages
    C. Drawing graphics
    D. Attaching files
    Answer: C

  27. A visual program that helps to simplify complex data using bars or lines is —
    A. calculator
    B. graph
    C. pie chart
    D. chart
    Answer: D

  28. One advantage of computers over humans is —
    A. ability to feel
    B. thinking ability
    C. speed and accuracy
    D. sleep and rest
    Answer: C

  29. Which of the following is a command for saving a file?
    A. Ctrl + X
    B. Ctrl + S
    C. Ctrl + A
    D. Ctrl + C
    Answer: B

  30. Computers connected in a school building form a —
    A. WAN
    B. WLAN
    C. LAN
    D. PAN
    Answer: C

  31. The process of copying data from a computer to a storage device is —
    A. formatting
    B. booting
    C. saving
    D. installing
    Answer: C

  32. A command used to close a window is —
    A. Ctrl + C
    B. Ctrl + S
    C. Alt + F4
    D. Ctrl + V
    Answer: C

  33. One major disadvantage of computers is —
    A. speed
    B. virus attack
    C. storage
    D. accuracy
    Answer: B

  34. Software used to create web pages is called —
    A. spreadsheet
    B. browser
    C. HTML editor
    D. antivirus
    Answer: C

  35. A device that displays images and videos is the —
    A. speaker
    B. keyboard
    C. monitor
    D. mouse
    Answer: C

NECO 2025/2026 Computer Studies Objective and Essay Questions and Answers

NECO 2025/2026 Computer Studies – Essay Question Answers

Question 1

(a) Define a computer.
A computer is an electronic device that accepts data as input, processes the data using a set of instructions (program), and gives the result as output. It can store, retrieve, and process data.

(b) List and explain four components of a computer system.

  1. Input Devices: These are devices used to enter data into the computer, e.g., keyboard, mouse, scanner.

  2. Output Devices: These show the result of processed data, e.g., monitor, printer, speakers.

  3. Central Processing Unit (CPU): This is the brain of the computer where data is processed. It includes the ALU (Arithmetic Logic Unit) and CU (Control Unit).

  4. Storage Devices: These are used to store data permanently or temporarily, e.g., hard drive, flash drive, CD-ROM.

(c) Differentiate between hardware and software.

  • Hardware refers to the physical components of the computer that you can touch, like monitor, keyboard, mouse, etc.

  • Software refers to a set of instructions or programs that tell the computer what to do. It is intangible (you cannot touch it), e.g., MS Word, Windows OS.

Question 2

(a) Define operating system.
An operating system (OS) is a system software that manages computer hardware and software resources and provides services for computer programs.

(b) Mention three functions of an operating system.

  1. It manages computer hardware like CPU, memory, and storage.

  2. It provides a user interface to interact with the computer.

  3. It coordinates and controls the execution of applications.

(c) State two differences between system software and application software.

System Software Application Software
Controls the computer’s hardware and basic system operations Performs specific tasks like word processing
Examples include Windows, Linux Examples include MS Word, Excel

Question 3

(a) What is internet?
The Internet is a global network of computers that are connected together to share information and communicate using standard protocols.

(b) State four uses of the internet.

  1. Sending and receiving emails.

  2. Research and accessing educational materials.

  3. Online banking and e-commerce.

  4. Social media and communication (e.g., WhatsApp, Facebook).

(c) Mention three search engines you know.

  1. Google

  2. Bing

  3. Yahoo

Question 4

(a) What is data processing?
Data processing is the act of collecting and converting raw data into useful information through a series of actions such as input, processing, and output.

(b) Outline the stages of data processing cycle.

  1. Data Collection: Gathering raw facts.

  2. Input: Entering data into the computer.

  3. Processing: Manipulating data into useful form.

  4. Output: Displaying the result of processed data.

  5. Storage: Saving the data for future use.

(c) Differentiate between manual and electronic data processing.

  • Manual Data Processing: Done by hand without using a computer. It is slow and prone to errors.

  • Electronic Data Processing: Performed using computers and software, making it faster, more accurate, and efficient.

Question 5

(a) Define computer virus.
A computer virus is a malicious program or code that enters a computer without the user’s knowledge and can damage or corrupt files and data.

(b) List and explain three types of computer virus.

  1. Trojan Horse: Pretends to be a useful program but causes harm when run.

  2. Worm: Replicates itself and spreads across systems, using up memory.

  3. Spyware: Secretly collects user data and activities without permission.

(c) Mention two ways of preventing virus attack.

  1. Install and regularly update antivirus software.

  2. Avoid downloading files or programs from untrusted websites.

Question 6

(a) What is word processing?
Word processing is the use of computer software to create, edit, format, and print text-based documents.

(b) Mention four features of a word processor.

  1. Text formatting (font type, size, color)

  2. Spell check

  3. Insert images and tables

  4. Save, open, and print documents

(c) State three advantages of using a word processor over a typewriter.

  1. Editing Ease: You can correct mistakes without starting over.

  2. Formatting: Allows change in font styles, alignment, and text effects.

  3. Storage: You can save and reuse documents anytime.

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