SEBA Class 8 Computer Chapter 2 Computer Hardware

SEBA Class 8 Computer Chapter 2 Computer Hardware Solutions As Per New Syllabus. to each chapter is provided in the list so that you can easily browse through different chapters SEBA Class 8 Computer Chapter 2 Computer Hardware Notes and select need one. SEBA Class 8 Computer Chapter 2 Computer Hardware Question Answers Download PDF. SCERT Class 8 Computer (IICT) Textbook Solutions.

SEBA Class 8 Computer Chapter 2 Computer Hardware

Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per State Council of Educational Research and Training (SCERT) Book guidelines. SCERT Class 8 Computer (IICT) Textual Solutions are part of All Subject Solutions. Here we have given SCERT Class 8 Computer Question Answer for All Chapters, You can practice these here.

Computer Hardware

Chapter: 2

EXERCISES

1. Mark True or False:

(a) RAM is a volatile memory. True/False.

Ans: True.

(b) Blu-ray discs can store up to 700 MB of data. True/False.

Ans: False.

(c) 1024 MB is equal to 1GB. True/False.

Ans: True.

(d) CDs are magnetic storage mediums. True/False.

Ans: False.

(e) Printer is an output device. True/False.

Ans: True.

2. Match column A with column B:

Column A	Column B
Del Key	Makes letters from uppercase to lowercase and from lowercase to uppercase.
Enter key	Creates one space when pressed once between words.
Shift Key	Deletes the character to the left of the cursor, helping to correct typing mistakes.
Esc Key	Used to start a new line or confirm an action.
Space Key	Used to remove the selected texts, files, or objects.
Backspace Key	Used to cancel the last operation, close dialogue boxes, and exit screens in software applications.

Ans:

Column A	Column B
Del Key	Used to remove the selected texts, files, or objects.
Enter Key	Used to start a new line or confirm an action.
Shift Key	Make letters from uppercase to lowercase and from lowercase to uppercase.
Esc Key	Used to cancel the last operation, close dialogue boxes, and exit screens.
Space Key	Creates one space when pressed once between words.
Backspace Key	Deletes the character to the left of the cursor.

3. Answer the following questions:

(a) Write the names of the main parts of a computer.

Ans: The main parts of computer are:

(i) Monitor.

(ii) keyboard.

(iii) System unit.

(iv) Mouse.

(b) What is the name of the hand-held pointing device that detects two-dimensional motion relative to a surface?

Ans: The name of the hand-held pointing device that detects two-dimensional motion relative to a surface is: Mouse.

(c) Which input device allows us to capture audio-visuals and stream them to a computer?

Ans: The input device that allows us to capture audio-visuals and stream them to a computer is a Webcam.

(d) Which button of a Mouse is used to move the page up and down?

Ans: The scroll button of a Mouse is used to move the page up and down.

(e) What is ROM? Mention its different types.

Ans: ROM (Read Only Memory) is a permanent memory of a computer that stores important instructions. The data stored in ROM is not lost when the power is turned off.

Types of ROM:

(i) MROM (Masked Read Only Memory).

(ii) PROM (Programmable Read Only Memory).

(iii) EPROM (Erasable Programmable Read Only Memory).

(iv) EEPROM (Electrically Erasable Programmable Read Only Memory).

(f) What is Cache memory?

Ans: Cache memory is a very small and very fast memory located near the CPU. It stores frequently used data and instructions so that the processor can access them quickly, improving the computer’s performance.

(g) Define Microprocessors.

Ans: A microprocessor is a small chip inside the computer. It is called the brain of the computer because it thinks and does all the calculations. It also controls all the work of the computer.

(h) Mention any two magnetic storage mediums.

Ans: (a) Hard disk.

(b) Magnetic tape.

(i) What is the basic difference between a DVD and a Blu-ray disc?

Ans:

DVD	Blu-ray Disc
Can store about 4.7 GB of data.	Can store about 25 GB or more of data.
Provides normal video quality.	Provides high-definition (HD) video quality.
Stores less data.	Stores more data.

4. Find out the input devices and output devices from the box given below and make two lists.

Keyboard, Monitor, Mouse, Scanner, Speaker, Touchpad, Printer,
Microphone, Webcam, Projector, Barcode reader.