Class-7 (Computer) Chapter -1

 

A. Short questions:

Q.1 Write the names of two types of software.

Ans.       1. System Software                         2. Application Software.

Q.2 Give names of four utilities software.

Ans.       1. Screen Saver                                                 2. Antivirus program

                3. Disk Cleanup Programs             4. Disk defragmenter

B. Long questions:

Q.1 What is the use of a language processor.

Ans. The software that translate is a type of system software called Language Processor

                  

 

Q.2  Explain high level language?

Ans. We write programs in computer language, e.g. BASIC, C++, Java etc. using words of English. Such languages are called High-level languages.

Q.3 Give an example of programming language and its purpose.

Ans. COBOL : This language is helpful in business applications.

C. Tick () mark the correct options:

1. The components that can be touched, felt and seen are called ________.

Ans.       b. Hardware

2. Computer- aided design is used to _________.

Ans.       b. Produce engineering

3. MS-WORD, MS Excel, TALLY are the examples of _________.

Ans.       b. Ready-made software

4.Machine Code consists of :

Ans.       b. 0s and 1s

D . Give the difference between

Q.1 Compilers and interpreters.

Ans. Compilers : A compiler is also a software program that translates an entire program written in high level language into machine language.

Interpreters: An interpreter is a software program that translates a high level language program into machine language. The translation is done line by line.

Q.2 Application Software and system software.

Ans. Application Software: Applications Software are set of programs that are put together for specific purpose or task.

System Software: System Software are a set of specially designed for performing tasks such as, controlling the computer hardware and utilizing the resources to help the application software to solve our specific problems.

E. Fill in the blanks

1. A programs is a set of Instructions that performs a special task.

2. Software is a set of programs.

3. A Compiler is also a software program that translates an entire program written in high level language into machine language.

4. An  Interpreter is a software program that translates a high level language program into machine language.

5. Fortran, C++, COBOL, JAVA, HTML, and LOGO are all Programming language.

F. Give the full Forms.

1. DTP : Desktop Publishing Package

2. OS : Operating System

3. CPU : Central Processing Unit

4. CAD :  Computer-aided design