Computer Science

Class-VI

Chapter-3 Programming Languages

A. Answer these questions orally:

1. Does a computer understand the languages that we use to communicate with one other?

Answer: No, Computer understand only computer languages.

2. What is binary language?

Answer: Computer understand binary digits 0 and 1 only. This is known as Machine Language. It is also known as Binary Language.

3. What are language translators?

Answer: Language translators are programs that convert programs written in other language into Machine language. 

B. Tick the correct option:

1. Low level languages use codes which are difficult to:

a. see        b. read            c. memories            d. write

Answer: Memories

2. LOGO language was developed in:

a. 1969      b. 1970            c. 1971                        d. 1975

Answer: 1969

3. Pascal language is named after French mathematician____ Pascal.

a. Blaise    b. Paul            c. David                    d. Charles

Answer: Blaise

C. Write the full form of the following acronyms:

1. BASIC

Answer: Beginners All Purpose Symbolic Instruction Code.

2. COBOL

Answer: Common Business Oriented Language.

3. FORTRAN

Answer: Formula Translation

4. LOGO

Answer: Logic Oriented Graphics Oriented.

A. Fill in the blanks:

1. ________ is needed to communicate with the computers.

Answer: Programming Language

2. ______ languages are directly understood by the computer.

Answer: Machine

3. Assembly language uses letter codes known as ___________.

Answer: Mnemonics

4. ______ language is useful for business purposes.

Answer: COBOL

B. Answer the following questions:

1. Define programming languages. Why do we need programming languages?

Answer: We need a language to give instructions to a computer. This language is called programming language. It needs to be given instructions in a language that computer can understand.

2. How are the programming language classified?

Answer: Programming languages can be classified into two major categories:

1. Low Level Languages

                    i. Machine Language

                    ii. Assembly Language

2. High Level Languages.

                    LOGO, BASIC, FORTRAN, PASCAL, C, C++, COBOL etc.

3. Differentiate between machine language and assembly language.

Answer: 

Machine Language: Computer understand only binary digits 0 and 1. It is known as Machine language.

Assembly Language: Assembly language is a low level language which uses letter codes instead of binary digits 0 and 1. These codes are known as Mnemonics.

4. What is the purpose of translators? Name the different types of translators.

Answer: Language translators are programs that needs to convert programs written in other languages into machine language.

Different translators:

Assemblers,

Compilers, and 

Interpreters.

5. How is compiler different from an interpreter?

Answer: 

Compiler: These are the programs that convert high level program into machine language.

Compiler convert the program in one single operation.

Interpreters: Interpreters are also the programs that convert high level program into machine language. Interpreter convert program step by step.

Links you may like:

CBSE Computer-Science Class-VI (Solved Exercise-1):

CBSE Computer-Science Class-VI (Solved Exercise-2):