INTRODUCTION TO COMPUTERS

Choose the correct answer:                                                                                  (1 mark)

First generation computers used

(a)Vacuum tubes                 (b) Transistors          (c) Integrated circuits           (d) Microprocessors

Name the volatile memory

(a) ROM                                (b) PROM                  (c) RAM                                (d) EPROM

Identify the output device

(a) Keyboard                         (b) Memory               (c) Monitor                           (d) Mouse

Identify the input device

(a) Printer                              (b) Mouse                 (c) Plotter                               (d) Projector

…………… Output device is used for printing building plan, flex board, etc.

(a) Thermal printer               (b) Plotter                 (c) Dot matrix                       (d) inkjet printer

In ATM machines, which one of the following is used to

(a) Touch Screen                 (b) speaker                (c) Monitor                            (d) Printer

When a system restarts ……………….. Which type of booting is used?

(a) Warm booting               (b) Cold booting       (c) Touch boot                      (d) Real boot.

Expand POST

(a) Post on self Test                                                 (b) Power on Software Test

c) Power on Self Test (d) Power on Self Text

Which one of the following is the main memory?

(a) ROM                                (b) RAM                    (c) Flash drive                       (d) Hard disk

Which generation of computer used IC’s?

(a) First                                  (b) Second                 (c) Third                                (d) Fourth

NUMBER SYSTEMS

Choose the correct answer:                                                                                  (1 mark)

Which refers to the number of bits processed by a computer’s CPU?

A) Byte B) Nibble                               C) Word length                   D) Bit

How many bytes does 1 Kilobyte contain?

A) 1000 B) 8                                        C) 4                                        D) 1024

Expansion for ASCII

A) American School Code for Information Interchange

B) American Standard Code for Information Interchange

C) All Standard Code for Information Interchange

D) American Society Code for Information Interchange

2^50 is referred as

A) Kilo B) Tera                                   C) Peta                                  D) Zetta

How many characters can be handled in Binary Coded Decimal System?

A) 64 B) 255                                    C) 256                                    D) 128

For 11012 what is the Hexadecimal equivalent?

A) F B) E                                        C) D                                       D) B

What is the 1’s complement of 00100110?

A) 00100110 B) 11011001                         C) 11010001                         D) 00101001

Which amongst this is not an Octal number?

A) 645 B) 234                                    C) 876                                    D) 123

• “CS KNOWLEDGE OPENER” Computer Science for standard XI has been prepared in accordance with the New Textbook released by the Government of Tamil Nadu.
• Each chapter consists of an Important Terms / Definition and Answers to the Textbook Questions, which gives a summary of the concepts presented in the text in a simple and lucid language.
• It is hoped that this book in the present form will satisfy all types of learners and help them improve their learning potential, apart from mentally preparing them to face any type of questions in the examinations.
• This Study Material is prepared from Revised Edition Text Book 2023
• Our aim is to make all the students who study this study material to score high marks in theory.

[pdf-embedder url=”https://csknowledgeopener.com/wp-content/uploads/2023/06/XI-CS-EM-STUDY-MATERIAL-2023-2024-1.pdf” title=”XI – CS EM STUDY MATERIAL 2023-2024″]