ICT - Std VIII
Lesson No 1 and 2
Revision
Answer the following
Q1:
What are the main types of computers?
A: The main types of computers are supercomputers, mainframes, minicomputers, and microcomputers (Personal computers).
Q2:
What is a supercomputer used for?
A:
Supercomputers are used for complex tasks like weather forecasting, scientific
simulations, and cryptography.
Q3:
What is a microcomputer?
A: A
microcomputer is a small, personal computer, such as a desktop or laptop.
Q4:
What is the function of the CPU?
A: The
CPU, or Central Processing Unit, is the brain of the computer that processes
instructions and manages
the
flow of information through the computer.
Q5:
What is RAM?
A: RAM
(Random Access Memory) is temporary storage that holds data and instructions
that the CPU needs while performing tasks.
Q6:
What is the primary use of mainframe computers?*
- *A:* Mainframe computers are primarily used
by large organizations for bulk data processing, such as in banking and
insurance.
Q7:
What is a minicomputer?*
- *A:* A minicomputer, also known as a
mid-range computer, is a smaller and less powerful computer than a mainframe,
often used in small to medium-sized businesses.
Q8:
What is a GPU, and what is its function?*
- *A:* A GPU (Graphics Processing Unit) is a
specialized processor designed to accelerate the rendering of images and video,
crucial for tasks like gaming and graphic design.
Q9: How
does a 3D printer work?*
- *A:* A 3D printer creates three-dimensional
objects by adding material layer by layer according to a digital model.
Q10:
What is the difference between primary and secondary storage?*
- *A:* Primary storage (like RAM) is
temporary and fast, used for active tasks, while secondary storage (like HDDs
and SSDs) is for long-term data storage.
Q11:
What are some common applications of computers in education?*
- *A:* Computers are used in education for
online learning, research, simulations, educational games, and managing student
records.
Q12: What
is the difference between hardware and software?*
- *A:* Hardware refers to the physical
components of a computer (e.g., CPU, keyboard), while software is the set of
instructions that tells the hardware what to do (e.g., applications, operating
systems).
Q13:
What is the function of an antivirus program?*
- *A:* An antivirus program protects a
computer from malware, such as viruses, worms, and Trojans, by detecting and
removing them.
Q14:
What is the internet?*
- *A:* The internet is a global network of
interconnected computers that enables the exchange of information and
communication.
Answer The Following
- *Q1:
What is an operating system?*
-
*Ans:* Software that manages hardware and software resources.
- *Q2:
What is the primary function of Windows OS?*
- *Ans:* To provide a user-friendly interface
for managing files and applications.
- *Q3:
What is the latest version of Windows?*
- *Ans:* Windows 11.
- *Q4:
What is a graphical user interface (GUI)?*
- *Ans:* A user interface with icons and
visual elements.
- *Q5:
What are the main components of the Windows desktop?*
- *Ans:* Taskbar, icons, Start menu,
wallpaper.
- *Q6:
What is the taskbar?*
- *Ans:* A bar showing open apps, Start menu,
and notifications.
- *Q7:
What are the primary functions of a mouse?*
- *Ans:* Pointing, clicking, dragging,
scrolling.
- *Q8:
What does a right-click do?*
- *Ans:* Opens a context menu.
- *Q9:
How do you drag and drop?*
- *Ans:* Click, hold, move, and release.
- *Q10:
What is the Start menu?*
- *Ans:* A menu for accessing programs,
files, and settings.
- *Q11:
How do you access the Start menu?*
- *Ans:* Click the Start button or press the
Windows key.
- *Q12:
What is the search bar in the Start menu for?*
- *Ans:* To find apps, files, and settings.
- *Q13:
How do you pin an application to the Start menu?*
- *Ans:* Right-click and select "Pin to
Start."
- *Q14:
What does the "Power" option do?*
- *Ans:* Allows shut down, restart, or sleep.
- *Q15:
What is the notification area?*
- *Ans:* Displays system notifications and
settings.
- *Q16:
How do you minimize all open windows?*
- *Ans:* Press Windows key + D or click
"Show Desktop."
- *Q17:
What is File Explorer?*
- *Ans:* A tool for managing files and
folders.
*1.
True or False Questions*
1. *The
Start menu can be accessed by pressing the Windows key.*
- *Ans:-True*
2. *The
taskbar is located at the top of the Windows desktop by default.*
- *Ans:-False* (It is located at the bottom
by default.)
3.
*Right-clicking on the desktop opens the context menu.*
- *Ans:-True*
4.
*File Explorer is used to browse the internet in Windows.*
- *Ans:-False* (It is used to manage files
and folders.)
5. *The
operating system is the software that controls all other software on a
computer.*
- *Ans:-True*
6.
*Supercomputers are used for simple tasks like word processing.*
- *Ans:-False* (They are used for complex
tasks like weather forecasting.)
7. *The
CPU is considered the brain of the computer.*
- *Ans:-True*
8. *A
laser printer uses liquid ink to print documents.*
- *Ans:-False* (It uses toner powder.)
9. *RAM
is a type of permanent storage in a computer.*
- *Ans:-False* (RAM is temporary storage.)
10.
*Computers can increase productivity by automating tasks.*
- *Ans:-True*
11.
*The Start menu in Windows 11 is located in the center of the taskbar by
default.*
- *Ans:-True*
12.
*You can resize the taskbar in Windows by dragging its edges.*
- *Ans:-False* (The taskbar height can be
adjusted, but not by dragging edges; resizing is limited.)
13.
*Windows allows you to create multiple user accounts on a single computer.*
- *Ans:-True*
14.
*The File Explorer’s address bar shows the current folder’s path.*
- *Ans:-True*
15.
*The primary function of RAM is to provide long-term data storage.*
- *Ans:-False* (RAM provides temporary
storage for active tasks.)
16.
*Supercomputers are typically used in scientific research and simulations.*
- *Ans:-True*
17. *An
optical drive is used to read and write data on CDs and DVDs.*
- *Ans:-True*
18.
*The printer is considered an input device.*
- *Ans:-False* (The printer is an output
device.)
19. *A
solid-state drive (SSD) generally has slower data access speeds compared to a
hard disk
drive (HDD).*
- *Ans:-False* (An SSD has faster data
access speeds compared to an HDD.)
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