Computer Terminology Full Form. || IT & Computer Concept!

Information Technology (402) & Computer Application (165) || JAC & CBSE Board Solutions!

Computer Terminology Full Form || IT & Computer Skills! 

 1) TCP/IP - Transmission Control Protocol/ Internet Protocol.

2) HTTPs - Hyper Text Transfer Protocol.

3) ICT - Information Comunication Technology.

4) ITeS - Information Technology Enabled Services.

5) CPU - Central Processing Unit. 

6) TLD - Top Level Domain. 

7) DNS - Domain Name System. 

8) WWW - World Wide Web.

9) URL - Uniform Resource Locator. 

10) FQDN - Frequently Qualified Domain Name.

11) HTML - Hyper Text Markup Language. 

12) ALU - Arithmetic Logic Unit.

13) SMPS - Switch Mode Power Supply 

14) BIOS - Basic Input Output System.

15) RAM - Random Access Memory.

16) ROM - Read Only Memory. 

17) POST - Power On Self  Test.

18) MOS - Metal Oxides Semiconductor.

19) CD - ROM - Compact Disc Read Only Memory. 

20) DVD - Digital Videos Disc. 

21) PCI - Peripheral Component Interconnect.

22) ISA - Industry Standards Architecture. 

23) AGP - Accelerated Graphics Port.

24) CRT - Cathode Ray Tube.

25) LCD  - Liquid Crystals Display.

26) LED - Light Emitted Diode.

27) NIC - Network Interface Card.

28) VGA - Videos Graphics Arrays.

29) HDMI - High Definition Multimedia Interface.

30) DVI - Digital Video Interface.

31) USB - Universal Serial Bus.

32) PC - Personal Computer.

33) DBMS - Data Base Management System.

34) DTP - Desktop Publishing.

35) CAD - Computer Aided Design.

36) CASE - Computer Aided Software Engineering.

37) DOS - Disk Operating System.

38) GUI - Graphics User Interface.

39) CUI - Character User Interface.

40) BOSS - Bharat Operating System Solutions.

41) DPI - Dots Per Inch 

42) OMR - Optical Mark Reader.

43) OCR - Optical Character Reader.

44) BCR - Bar Code Reader.

45) MICR - Magnetical Ink Character Reader.

46) QR - Quick Response 

47) e-Mail - Electronic Mail.

48) POP - Post Office Protocol.

49) BCC - Blink Carbon Copy. 

50) SMTP - Simple Mail Transfer Protocol.

JAC TIME TABLE 2025

 

CMS - 2024 || JAC INTERMEDIATE EXAMINATION - 2024 || 12th COMPUTER SCIENCE!

  Part-A

Multiple Choice Questions

1) Who is the developer C++?

a) Von Neumann

b) Dennis M. Ritchie

c) Charles Babbage

d) Bjarne Stroustrup

Answer:- d) Bjarne Stroustrup

2) The smallest individual unit in a program is called _____.

a) Token

b) Language

c) Data

d) None of these

Answer:- a) Token

3) String Terminator character is _____.

a) '\t'

b) '\v'

c) '\o'

d) None of these

Answer:- d) None of these || '\0' Null Character

4) In C++ cin, cout, cerr are predefined stream ____.

a) Operator

b) Function

c) Object

d) None of these

Answer:- c) Object

5) Relational operators are ____.

a) +, -, *, /

b) &&, ||, !

c) ?, :

d) <, >, <=, >=, ==, !=

Answer:- d) <, >, <=, >=, ==, !=

6) Evaluate of x=++y*5 if y=10 is ___.

a) 50

b) 55

c) 10

d) None of these

Answer:- b) 55

7) do-while loop checks condition on _____.

a) Top

b) left

c) bottom

d) None of these

Answer:- c) bottom

8) Wrapping up of data and functions in to a single unit is called _____.

a) Inheritance

b) Polymorphism

c) Encapsulation

d) None of these

Answer:- c) Encapsulation

9) Which of the following correctly declares an object of a class?

a) Class student;

b) Student ob;

c) Student S[ ]

d) None of these

Answer:- b) Student ob;

10) Static member function is invoked by using the _____.

a) Class name

b) Object name

c) Dot operator

d) None of these

Answer:- a) Class name

11) An inline function is ____.

a) declared and defined inside the class

b) prefix with keyword inline

c) called at compile time

d) None of these

Answer:- b) Prefix with keyword inline

12) Function overloading implements the _____ concept of OOPs.

a) Polymorphism

b) Inheritance

c) Abstraction

d) None of these

Answer:- a) Polymorphism

13) In public Inheritance, a public data member of the base class will be treated in a derived class as ___.

a) Public

b) Private

c) Protected

d) None of these

Answer:- a) Public

14) The chain depicting the derivation of a class from multiple base classes is called __.

a) Containership

b) Inheritance graph

c) Inheritance path

d) None of these

Answer:- c) Inheritance path 

15) The allocation of memory at run time is referred to as _____.

a) Static Memory Allocation

b) Dynamic Memory Allocation

c) Computer Memory Allocation

d) None of these

Answer:- b) Dynamic Memory Allocation

16) A pointer variable declaration is done as ___.

a) data type *variable;

b) *data type variable;

c) data type variable*;

d) none of these

Answer:- a) data type *variable;

17) Elements that can be added or removed at both ends are called

a) Straight queue

b) Deque

c) Circular queue

d) None of these

Answer:- b) Deque

18) Which header file is required for creating and manipulating data files in C++?

a) string.h

b) math.h

c) fstream.h

d) None of these

Answer:- a) fstream.h

19) Number of tuples in a relation is called

a) Degree

b) Cardinality

c) Attributes

d) None of these

Answer:- b) Cardinality

20) Set of possible values that an attribute can have, is called

a) Tuple

b) Domain

c) Column

d) None of these

Answer:- b) Domain

21) Which of the following is not a data manipulation language command?

a) INSERT

b) DELETE

c) UPDATE

d) COMMIT

Answer:- d) Commit

22) The dual of the Boolean expression AB + A'B + 1 is

a) (A + B) (A' + B) + O

b) (A + B) (A' + B) . O

c) 

d) None of these

23) Maxterm designation of X' + Y + Z + W' is

a) M9

b) m9

c) m4

d) None of these

24) A location on a net server is called a 

a) Web Browser

b) Telnet

c) Website

d) None of these

Answer:- c) Website

25) The data transmission rate is measured in ____.

a) Metre

b) Baud

c) Amplitude

d) None of these

Answer:- b) Baud

26) Define Literal.

27) What will be the size of the following constants?

a) "U\a"

b) "JAC-2024"

28) What data types should you use to represent the following items?

a) The average marks in the class.

b) The number of employees in an organisation.

29) What is structure?

30) Evaluate the following expressions:

a) F = a + b / a where a = 5, b = 3

b) F = (a++) * d + 4 where a = 10, d = 5

31) What do you mean by Abstraction?

32) Write any two advantages of e-mail.

33) Define Encapsulation.

34) Expand the following:-

a) SIM  - Single Inline Module

b) HTTP - Hyper text transfer protocol

35) Define Polymorphism. Give an example to show it's implementation in C++.

36) What is the advantage and disadvantage of inline function?

37) What are the advantage offered by inheritance?

38) What is Constructor? Explain with example.

39) Evaluate the post fix expression using stack and show the contents of stack after execution of each operation:

120, 45, 20, +, 25, 15, -, +, *

40) What is a relation? What is the difference between tuple and an attribute?

41) Draw a logic circuit diagram for the following expression:

Y = AB + B'C + C'A'

42) What are the various levels of data abstraction in a database system? Explain.

Word Processor Edit Menu Shortcut Keys Concepts

https://youtu.be/5pHePR3-Sxw

https://youtu.be/5pHePR3-Sxw?si=2IoH-qPFsB9VwoGH

Class - 9 || Chapter - 4 || IT & Computer || Spreadsheet Exercise Solutions!

 A) Fill in the blanks:-

a) A 'Calc' worksheet contains 1024 columns and 65536 rows.

b) Text Orientation helps to rotate direction of contents in a cell.

c) Series of numbers can be filled using Autofill feature.

d) F2 button is used to enter or edit formula in calc.

e) The extension of Calc file is .ods which automatically gets attached with the file name.

B) Select the correct answers:-

1) Address of the current cell/active cell is contained in:

Answer:- Name Box

2) The option that reduces the font size of the data to accomodate it within the column width:

Answer:- Shrink to fit cell size

3) Calc provide a feature where predefined series of name or text are defined. This feature is know as:

Answer:- Autofill

4) Button that is used to calculate the sum of specified range of cells is known as :

Answer:- AutoSum

5) This option accommodates the text automatically within the column width by increasing the row height.

Answer:- Wrap Text

C) Difference between the following:-

1) Autofill and Custom List

Answer:- Autofill feature in spreadsheet package is predefined series of data such as months name of year, days name of week, series number etc.

Custom list feature create a custom list where some series of names or text that can be pre defined and then it can be displayed when the initial data is entered and auto fill is applied.

2) Undo and Redo

Answer:- Undo helps the user to reverse the series of actions and Redo helps to reverse the actions that have been executed by Undo action.

Ctrl+ Z is short cut for Undo and Ctrl + Y is short cut for Redo.

3) Wrap Text and Shrink to Fit

Answer:- Wrap Text option wraps the text in multiple line to accomodate the text automatically within the column by increasing the row height.

Shrink to fit option reduces the font size of the contents to accomodate it within column width.

Word Processor Shortcut Keys File Menu

 

Class-09 || IT & Computer || Question Solutions!

 A) Fill in the blanks:

1) Tim Berners Lee has created the first website.

2) Telemedicine is the use of information technology and telecommunication to provide health care from a distance.

3) Douglas Engelbart invented the first computer mouse.

4) Father of computer is called Charles Babbage.

5) Lady Ada is the first computer programmer.

B) Change the following sentences:

1) I gave him a noval for his birthday. [change in to passive]

S: A book was given to him on his birthday by me. 

2) A stone was being thrown by the kid in to river.[change in to active]

S:The kid was throwing a stone into the river.

C) Write short notes on:

1) Visual Communication :- Visual communication is the transmission of information and ideas using symbols and imagery. 

It includes signs, graphic designs, films, typography, and countless other examples. or. Visual communication is something that can be achieved through sight.

2) Digilocker :- DigiLocker is a cloud-based platform of the Government of India for the issuance and verification of documents & certificates digitally.

You can use it to store important and official documents such as educational certificates, birth certificates, PAN cards, Aadhaar cards, Passports and Voter IDs on your mobile phone. 

D) Differentiate between:

1) Merging and splitting cells

Merging cells means to combine cells by converting one or more cells into a single cell. 

Splitting cells is the reverse of merging cells.

Splitting cells adding a row or column, but it all takes place in one cell instead of a group of cells. 

2) Absolute URL and Relative URL

S: The complete address of a document on the internet is known as an absolute URL.

 The relative URL is a document's online partial address.

 All the information needed to locate files online is contained in the absolute URL. 

Only file names or file names with folder names are contained in relative URLs.

E) Answer the following questions:

1) Explain about some important keys of self management.

Answer: The following important keys of self management are:-

Skill 1. Time management.

Skill 2. Self motivation. 

Skill 3. Stress management. 

Skill 4. Adaptability. 

Skill 5. Decision making. 

Skill 6. Goal alignment. 

Skill 7. Personal development. 

2) What do you mean by protocol?

Answer:- 

A protocol is a set of rules and guidelines for communicating data. 

Rules are defined for each step and process during communication between two or more computers. 

Networks have to follow these rules to successfully transmit data.

 In networking, a protocol is a standardized set of rules for formatting and processing data. Protocols enable computers to communicate with one another.

3) What is the function of find & replace?

Answer:-

Find and Replace helps you to find words in a document and can replace all word in a documents. 

The Find function allows you to locate a particular number or text string, 

To Find, use the shortcut Ctrl+F.

while the Replace function helps you replace a particular number or text string with something else.

To Replace, use the shortcut Ctrl+H.

4) What is Page Break? How to insert Page Break in a document?

Answer:- 

A page break is a special marker to use the page breaks to control where a page ends and where a new page begins. Place the cursor where you want to start a new page.

Select Insert > Page Break.

F) Long Answer questions:

1) List the various types of keys on a keyboard. Briefly explain them.

2) What are the features of word processor?

3) What is margin? Write about the different types of margins.