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6. What type of device is scanner?
a. Input b. Output
c. Storage d. None of these
7. Which port is used to attach pen drives to the computer?
a. USB b. Serial
c. Parallel d. Ethernet
B. Fill in the blanks using the words given below.
Hints: Monitor, Microphone, CD-RW, Zink, LaCie SAFE
1. ............................. technology is used in portable printers.
2. In a ............................. data can be erased and modified as many times as required.
3. ............................. is a portable storage device with a fingerprint recognition scanner.
4. The ............................. generates a soft copy of data all information.
5. ............................. is a voice based input device.
C. Write ‘T’ for true and ‘F’ for false.
1. Audio port connects the network cable to the computer. ................................
2. Modem converts digital signals to analog and vice versa. ................................
3. The control unit of the CPU directs all the operations of the processor. ................................
4. There are ten function keys on a keyboard. ................................
5. Blue violet laser is used to read or write data on a Blu-ray disc. ................................
Section B (Subjective)
A. Short answer type questions:
1. Write the full form of ALU.
2. Which port is used to connect to other internal audio device?
3. Which is the most commonly used keyboard.
4. Name the two types of plotters.
5. Name the most widely used internal storage magnetic disk.
B. Long answer type questions:
1. Explain the components of CPU.
2. Differentiate between Impact and Non impact printers.
3. How does a modem work?
4. Explain any three hybrid devices.
5. Classify the keys of the keyboard in different categories.
19
Computer—Hardware Components

