GCU 3P COMPLETE EXAM QUESTIONS AND 100% VERIFIED
ANSWERS (PASS GUARANTEE) LATEST VERSION 2026-2027
1. Q: What is a computer? ANSWER A computer is an electronic device that
accepts input, processes data, stores information, and produces output according
to a set of instructions called programs.
2. Q: What are the main components of a computer system? ANSWER The
main components are hardware (physical parts), software (programs and
applications), data (information being processed), and users (people who
operate the system).
3. Q: What is hardware? ANSWER Hardware refers to the physical
components of a computer system that you can touch, such as the monitor,
keyboard, mouse, processor, and motherboard.
4. Q: What is software? ANSWER Software is a collection of programs, data,
and instructions that tell the computer how to perform specific tasks.
5. Q: What is the difference between system software and application
software? ANSWER System software manages computer hardware and
provides a platform for application software (e.g., operating systems).
Application software performs specific tasks for users (e.g., word processors,
games).
6. Q: What is the CPU? ANSWER The CPU (Central Processing Unit) is the
brain of the computer that executes instructions and performs calculations.
7. Q: What are the three main components of the CPU? ANSWER The
three main components are the Arithmetic Logic Unit (ALU), Control Unit
(CU), and registers.
8. Q: What is RAM? ANSWER RAM (Random Access Memory) is
temporary, volatile memory that stores data and programs currently being used
by the computer.
,9. Q: What is ROM? ANSWER ROM (Read-Only Memory) is permanent,
non-volatile memory that contains essential instructions for starting up the
computer.
10. Q: What is the difference between RAM and ROM? ANSWER RAM is
volatile (loses data when power is off), readable and writable, and used for
temporary storage. ROM is non-volatile, primarily read-only, and contains
permanent instructions.
11. Q: What is a motherboard? ANSWER The motherboard is the main
circuit board that connects all computer components and allows them to
communicate with each other.
12. Q: What is a hard disk drive (HDD)? ANSWER An HDD is a non-
volatile storage device that uses magnetic storage to store and retrieve digital
data on rotating platters.
13. Q: What is an SSD? ANSWER An SSD (Solid State Drive) is a storage
device that uses flash memory chips to store data, offering faster access speeds
than traditional HDDs.
14. Q: What is an operating system? ANSWER An operating system is
system software that manages computer hardware and software resources and
provides common services for computer programs.
15. Q: Name three popular operating systems. ANSWER Windows, macOS,
and Linux are three popular operating systems.
16. Q: What is a bit? ANSWER A bit (binary digit) is the smallest unit of data
in computing, representing either 0 or 1.
17. Q: What is a byte? ANSWER A byte is a unit of digital information
consisting of 8 bits.
18. Q: How many bytes are in a kilobyte? ANSWER There are 1,024 bytes
in a kilobyte (KB).
19. Q: What is binary code? ANSWER Binary code is a coding system using
the binary number system (0s and 1s) to represent text, computer processor
instructions, or other data.
20. Q: What is an input device? ANSWER An input device is hardware used
to provide data and control signals to a computer, such as a keyboard, mouse, or
scanner.
, 21. Q: What is an output device? ANSWER An output device is hardware
that receives data from a computer and displays or produces it in a usable form,
such as a monitor, printer, or speakers.
22. Q: What is a peripheral device? ANSWER A peripheral device is any
external device that connects to a computer to add functionality, such as a
printer, scanner, or external hard drive.
23. Q: What is BIOS? ANSWER BIOS (Basic Input/Output System) is
firmware that initializes hardware during the boot process and provides runtime
services for operating systems.
24. Q: What is booting? ANSWER Booting is the process of starting up a
computer and loading the operating system into memory.
25. Q: What is the difference between cold boot and warm boot? ANSWER
Cold boot is starting a computer from a powered-off state. Warm boot is
restarting a computer that's already on.
26. Q: What is a user interface? ANSWER A user interface is the means by
which a user interacts with a computer system, including graphical elements,
commands, and controls.
27. Q: What is GUI? ANSWER GUI (Graphical User Interface) is a user
interface that uses visual elements like windows, icons, and menus for user
interaction.
28. Q: What is CLI? ANSWER CLI (Command Line Interface) is a text-based
user interface where users type commands to interact with the computer.
29. Q: What is a driver? ANSWER A driver is software that allows the
operating system to communicate with and control hardware devices.
30. Q: What is firmware? ANSWER Firmware is permanent software
programmed into read-only memory that provides low-level control for a
device's hardware.
31. Q: What is cache memory? ANSWER Cache memory is a small, high-
speed memory located close to the CPU that stores frequently accessed data for
quick retrieval.
32. Q: What is virtual memory? ANSWER Virtual memory is a memory
management technique that uses hard disk space as an extension of RAM when
physical memory is full.
ANSWERS (PASS GUARANTEE) LATEST VERSION 2026-2027
1. Q: What is a computer? ANSWER A computer is an electronic device that
accepts input, processes data, stores information, and produces output according
to a set of instructions called programs.
2. Q: What are the main components of a computer system? ANSWER The
main components are hardware (physical parts), software (programs and
applications), data (information being processed), and users (people who
operate the system).
3. Q: What is hardware? ANSWER Hardware refers to the physical
components of a computer system that you can touch, such as the monitor,
keyboard, mouse, processor, and motherboard.
4. Q: What is software? ANSWER Software is a collection of programs, data,
and instructions that tell the computer how to perform specific tasks.
5. Q: What is the difference between system software and application
software? ANSWER System software manages computer hardware and
provides a platform for application software (e.g., operating systems).
Application software performs specific tasks for users (e.g., word processors,
games).
6. Q: What is the CPU? ANSWER The CPU (Central Processing Unit) is the
brain of the computer that executes instructions and performs calculations.
7. Q: What are the three main components of the CPU? ANSWER The
three main components are the Arithmetic Logic Unit (ALU), Control Unit
(CU), and registers.
8. Q: What is RAM? ANSWER RAM (Random Access Memory) is
temporary, volatile memory that stores data and programs currently being used
by the computer.
,9. Q: What is ROM? ANSWER ROM (Read-Only Memory) is permanent,
non-volatile memory that contains essential instructions for starting up the
computer.
10. Q: What is the difference between RAM and ROM? ANSWER RAM is
volatile (loses data when power is off), readable and writable, and used for
temporary storage. ROM is non-volatile, primarily read-only, and contains
permanent instructions.
11. Q: What is a motherboard? ANSWER The motherboard is the main
circuit board that connects all computer components and allows them to
communicate with each other.
12. Q: What is a hard disk drive (HDD)? ANSWER An HDD is a non-
volatile storage device that uses magnetic storage to store and retrieve digital
data on rotating platters.
13. Q: What is an SSD? ANSWER An SSD (Solid State Drive) is a storage
device that uses flash memory chips to store data, offering faster access speeds
than traditional HDDs.
14. Q: What is an operating system? ANSWER An operating system is
system software that manages computer hardware and software resources and
provides common services for computer programs.
15. Q: Name three popular operating systems. ANSWER Windows, macOS,
and Linux are three popular operating systems.
16. Q: What is a bit? ANSWER A bit (binary digit) is the smallest unit of data
in computing, representing either 0 or 1.
17. Q: What is a byte? ANSWER A byte is a unit of digital information
consisting of 8 bits.
18. Q: How many bytes are in a kilobyte? ANSWER There are 1,024 bytes
in a kilobyte (KB).
19. Q: What is binary code? ANSWER Binary code is a coding system using
the binary number system (0s and 1s) to represent text, computer processor
instructions, or other data.
20. Q: What is an input device? ANSWER An input device is hardware used
to provide data and control signals to a computer, such as a keyboard, mouse, or
scanner.
, 21. Q: What is an output device? ANSWER An output device is hardware
that receives data from a computer and displays or produces it in a usable form,
such as a monitor, printer, or speakers.
22. Q: What is a peripheral device? ANSWER A peripheral device is any
external device that connects to a computer to add functionality, such as a
printer, scanner, or external hard drive.
23. Q: What is BIOS? ANSWER BIOS (Basic Input/Output System) is
firmware that initializes hardware during the boot process and provides runtime
services for operating systems.
24. Q: What is booting? ANSWER Booting is the process of starting up a
computer and loading the operating system into memory.
25. Q: What is the difference between cold boot and warm boot? ANSWER
Cold boot is starting a computer from a powered-off state. Warm boot is
restarting a computer that's already on.
26. Q: What is a user interface? ANSWER A user interface is the means by
which a user interacts with a computer system, including graphical elements,
commands, and controls.
27. Q: What is GUI? ANSWER GUI (Graphical User Interface) is a user
interface that uses visual elements like windows, icons, and menus for user
interaction.
28. Q: What is CLI? ANSWER CLI (Command Line Interface) is a text-based
user interface where users type commands to interact with the computer.
29. Q: What is a driver? ANSWER A driver is software that allows the
operating system to communicate with and control hardware devices.
30. Q: What is firmware? ANSWER Firmware is permanent software
programmed into read-only memory that provides low-level control for a
device's hardware.
31. Q: What is cache memory? ANSWER Cache memory is a small, high-
speed memory located close to the CPU that stores frequently accessed data for
quick retrieval.
32. Q: What is virtual memory? ANSWER Virtual memory is a memory
management technique that uses hard disk space as an extension of RAM when
physical memory is full.
