1.
Define data communication. Give any two
examples of it.
Ans:
A data communication system is the collection of hardware, software and other
devices that allows to exchange data, information and voice between two or more
devices through a wire or radio waves. The components of data communication are
data, sender, medium, receiver and protocol.
Any
two examples of data communication are e-mail and chat.
2. What is internet?
Ans: Internet is an
interconnection of several thousands of computers of different types belonging
to the various networks all over the world.
3.
What is computer security?
Ans: The security given
to the computer for the protection of hardware, software and data from being
lost or damaged due to accidental or intentional harm is known as computer
security.
Ans: Computer virus is
a type of computer program which is written by the programmer with the intent
of destroying or damaging the data and programs residing in the computer
system.
5.
What is multimedia? Name the five types
of media used in multimedia technology.
Ans: Multimedia is the integration of multiple forms of media, which presents information in more interesting and understandable way.
Ans: Multimedia is the integration of multiple forms of media, which presents information in more interesting and understandable way.
The
five types of media used in multimedia technology are:
i) Text ii) Audio iii) Video
i) Text ii) Audio iii) Video
iv)
Graphics v)
Animation
6.
What is cyber law?
Ans: The law which
governs the legal issues in the cyber space regarding the internet or WWW for
digital data processing and transaction is called cyber law.
7.
What is database? Give two examples.
Ans:
Database is a collection of related and organized information that can be used
for different purpose.
The two examples of database are:
i) Dictionary
ii) Telephone Directory
The two examples of database are:
i) Dictionary
ii) Telephone Directory
8.
What is Primary key? Why is it needed?
Ans: Primary key is a
field that uniquely identifies the record. It is needed because it neither
accepts duplicate values nor permit null values.
9. Define
table. Write different ways to create a table.
Ans: Table is an
object of Ms-Access that stores large volume of data in the form of rows and
columns.
The different ways to create table are:
i) Design view
ii) Using wizard
The different ways to create table are:
i) Design view
ii) Using wizard
iii) Entering data
10.
What is a modular programming?
Ans: Modular
programming is a technique which divides the program into many small,
manageable, logical and functional modules or blocks.
11.
Write down the functions of:
a) OPEN statement:
It opens a sequential file for one of the three possible operations (reading, writing, appending).
b) WRITE# statement:
It sends one or store one or more data items to the specified file using either output or append mode.
12.
Define C-language.
Ans: C-language is a
structured programming language that divides program into many functions.
“To
teach is to learn twice.”
Joseph Joubert
Joseph Joubert
