Page 33 - Computer Science V2.0 Class 11

4. Murugan wants to assemble a computer. Help him to identify the peripheral devices to perform the following tasks:
Input sound
Input textual data
To generate a hard copy of the output
To convert an image on paper into digital form
Ans. Input sound Microphone
Input textual data Keyboard
To generate a hard copy of the output Printer
To convert an image on paper into digital form Scanner

5. Asma is learning about different types of memories. Help her in understanding the key differences between various types
of memories by naming the following types of memories:
(i) Although this type of memory is slower than the registers in the CPU, it is faster than primary memory.
(ii) This is the memory that stores programs currently being executed and is also known as read/write memory.
(iii) This is a non-volatile memory that is often fitted inside a CPU cabinet of a personal computer, although it can also be
connected externally through a USB port.
(iv) This type of non-volatile memory stores the boot loader program.
(v) Data and instructions in this type of memory are generally stored at the time of manufacturing.
Ans. (i) Cache memory
(ii) RAM
(iii) Hard Disk
(iv) ROM
(v) ROM

Assessment

A. Multiple Choice Questions.
1. Which of the following types of memories cannot store data permanently?
a. RAM b. ROM c. Hard disk d. Pen drive
2. Which of the following components is part of the CPU?
a. Cache Memory b. Arithmetic and Logic Unit (ALU)
c. Secondary Memory d. Solid State Drive (SSD)
3. Which of the following devices enables you to listen to songs saved on your computer?
a. Microphone b. Headphones c. Scanner d. Projector
4. Which of the following is open-source software?
a. Mozilla Firefox b. Microsoft Edge c. Adobe Photoshop d. Quickheal Antivirus
5. Which of the following is not a language processor?
a. Assembler b. Compiler c. Device Driver d. Interpreter
6. Which of the following components of the CPU can be used to perform the task of comparing two data values?
a. Control unit b. Memory registers c. Output devices d. Arithmetic and Logic Unit (ALU)
7. Which of the following is equivalent to 1 TB?
a. 1024 GB b. 1024 KB c. 1024 PB d. 1024 MB
8. Which of the following terms refers to the physical components of a computer?
a. Device Driver b. Hardware c. Firmware d. Operating System

Computer Fundamentals 19