Question

Computer Science
Class : XI
Marks : 1
Date : 08.01.2021
Time : 2
1.
Choose the correct answer.
15 X 1 = 15
1. Which of the folk wing is the main memory?
a) ROM b) RAM c)Flash drive d) Hard disk
2. Which generation of computer used IC's?
a) First b) second
c) third
d) fourth
3. First generation used only languages.
a) High level b) machine c) microprocessor d) COBOL
4.
is a pointing device used to control the movement of the cursor on the dis
a) Keyboard b) scanner c) light pen d) mouse
5. How many characters can be handied in binary coded decimal system?
a) 64 b) 255 c) 256 d) 128
6. Which amongst this is not an octal number?
a) 444 b) 566 c) 842 d) 231
7. 2130 refers to
a) Kilo
b) mega c) giga d) tera
8. is a collection of 4 bits.
a) Byte b) nibble c) kilobyted) megabyte
9. Which of the following is a CISC processor?
a) Intel P6 b) AMD K6 c) Pentium III d) Pentium IV
10.is similar to the upside-down design of the mouse.
a) Keyboard b) Scanner c) Keyer d) Track ball
11. Which is the fastest memory?
a) Hard disk b) main memory c) cache memory
d) blue-ray disk
12. What is the smallest size of data represented in a CD?
a) Blocks b) sectors c) pits d) tracks
13. File management manages
a) Files b) folders c) directory systems d) all the above
14. Which of the following is not refers to Android operating system's version.
a) Cupcake b) Éclair c)gama d) alpha
1$. Operating system is a
a) Application software h) hardware c) system software d) component
II.
Answer any 6 of the following. Q.No.24 is compulsory.
6 X 2 = 1
16. What is a computer?
17. What is printer? List it's types.
18. Convert (46)10 into binary number.
19. List the encoding system for characters in memory.
20. What is Plotter?
21. What is a program counter?
22. What PS/2 port and SCSI port?
23. What is multi-processing?
24. List out the Linux distributions of operating system.​

Answer 1

Answer:

The correct answer is RAM ie. Random access memory.

The main memory in a computer is called Random Access Memory.

It is also known as RAM.

This is the part of the computer that stores operating system software, software applications and other information for the central processing unit (CPU) to have fast and direct access when needed to perform tasks.

It is called "random access" because the CPU can go directly to any section of main memory and does not have go about the process in a sequential order.

Explanation: