Information Technology
Class-9
Unit- III- Chapter-3 Basic Computer Operations
Chapter-4 Peripheral Devices
Chapter-3:
A. Multiple choice questions:
1. What is the first screen you see when you boot computer?
a. Desktop b. BIOS settings c. Office d. Command prompt
Answer: Desktop
2. Which one is single tasking OS?
a. MS DOS b. Windows c. UBUNTU d. None of these
Answer: MS DOS
3. Which command is used to shutdown on Linux?
a. Reboot b. Make c. Shutdown d. None of these
Answer: Shutdown
B. Answer the following questions:
1. Name the operating system on your computer.
*You will write the name of the operating system that installed on your computer. Some examples are: Windows(Window 7, Window XP, Window 10), Linux,Unix etc.
2. Write down the partitions of the hard disk.
* You will write the hard disk partitions name from your computer.
Some examples are: Local Disk(C), Local Disk(D), Local Disk(F), Local Disk(E) etc.
3. Identify removable disks on the computer.
* You will write removable device name that attached with your computer.
Some examples are: Pen Drive, CD, DVD etc.
4. Write steps to restore any one file.
Answer:
1. Click on recycle bin.
2. Right click on a file that you want to restore.
3. In drop down list click on restore option.
5. Write steps to empty recycle bin.
Answer: To empty recycle bin follow the steps:
1. Right click on recycle bin icon on the desktop.
2. Drop down list will be appear, click on empty option from drop down list.
6. Write names of any three programs/applications installed in your computer.
* You will write any three software's name that installed on your computer.
Some examples are: MS Word, MS Excel, MS Paint, Typing master, Antivirus etc.
Chapter-4
A. Multiple Choice Questions:
1. What data does a webcam transmit into a computer?
a. pictures/videos b. sound c. letters and numbers d. clicks and movement
Answer: Pictures/videos
2. What data does a microphone transmit to a computer?
a. pictures/videos b. sound c. letters and numbers d. clicks and movement
Answer: Sound
3. What are the three general types of peripheral devices?
a. Input, Output, storage b. Mouse, keyboard and monitor c. Internal, wired external and wireless external d. audio, video and print output
Answer: Input, Output, storage
B. State T for true F for false:
1. Input devices allow us to send information to the CPU to tell the computer what to do.
Answer: T
2. Output devices receive information from the CPU, then translate it into sounds or images that we can understand.
Answer: T
3. Printers is an input device.
Answer: F
4. Mouse is an input device.
Answer: T
C. Answer the following questions:
1. What are the different categories of peripheral devices?
Answer: Different categories of peripheral devices are:
1. Input device
2. Output device
3. Storage device
2. Name the device used to enter data directly in the computer.
Answer: Mouse, Keyboard etc.
3. Name the device used to play games on computer.
Answer: Joystick is used to play games.
4. What is the name given to thick and thin lines on any grocery item called? Name the device used read these lines.
Answer: Thick and thin lines on any grocery item is called Barcode.
Barcode reader is used to read it.
5. Name the device used to listen sound from the computer.
Answer: Speaker is used to listen sound from the computer.
6. Name the printers that prints one page at a time.
Answer: Laser printer is used to print one page at a time.
7. Differentiate between hard copy and soft copy.
Answer: Documents in printed form is called hard copy and documents store in computer is called soft copy.
8. Name the printer that prints one character at a time.
Answer: Dot matrix printer is used to print one character at a time.
9. Name the printer that uses a continuous stream of ink drops to print on paper.
Answer: Inkjet printer is used to uses a continuous stream of ink drops to print on paper.
10. Name any two external storage devices.
Answer: Two external storage devices are: CD and DVD.
11. Which has more capacity-CD or DVD.
Answer: DVD has more capacity than CD. DVD store 4 GB data and CD stores only 700 MB data.
12. If you have to take your project from home to school in a digital form, which storage device is best suited for this purpose?
Answer: To carry digital data from one place to another place, Pen drive is best suited for this purpose.
13. What is the use of external hard disk?
Answer: External hard disk is used to take backup from the computer.
14. Which device has more storage capacity?
1. 16 GB pen drive or a CD.
2. 16 GB pen drive or 1 TB hard disk.
Answer:
1. 16 GB pen drive has more capacity than a CD.
2. 1 TB hard disk has more capacity than 16 GB pen drive.
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