I-MIDTERM EXAMINATION- SEP.-2008

III YEAR (CSE) (PPL)

MM-30 TIME-1 Hr.

Note: attempt all questions.

All questions are equal marks.

Q-1. Attempt any one part of following. 10

a) Explain the factors influencing the evolution of programming language?

Ans. Topics:

Following are the factors which are influencing the evolution of programming language:

· Computer capabilities

· Applications

· Programming methods

· Implementation method

· Theoretical studies

· Standardization

b) Define the characteristics of good programming language?

Ans. Topics:

Following are the characteristics of good programming language:

· Clarity, simplicity and unity.

· Naturalness for the applications

· Support for abstractions

· Easy of program verification

· Programming environment

· Portability of programs

· Cost of use

Q-2. Attempt any two parts of following. (5 * 2)

a) Define in brief about the development of programming methodologies?

Ans. Topics:

Following points are the development of programming methodologies:

· Imperative or procedural language

· Applicative or functional language

· Rule based or logical language

· Object oriented language

b) Explain the syntax and semantics in brief?

Ans. Topics:

Syntax describes the structure of program and semantics defines the relationship between the syntax and the computational modal. To simplify the task of reasoning about programs, the syntax of programming language should be closely related to the computational modal.

In brief saw the PPL notes.

c) Explain the design issues of the programming language?

Ans. Topics:

About the design issues the main topic is scope rule.

Q-3. Attempt any one part of following. 10

a) Explain about the programming processors with figure?

Ans. Topics:

About the programming processors following topics will covered:

· Basic features and terminology

· Language translator

· Compiler

· Interpreter

· Stages of compiling

· Errors in compiling

b) What is binding and binding time. Also define about execution time binding and

translation time binding?

Ans. Topics:

For binding and binding time following topics are covered:

1. About binding

2. Classes of binding time

3. Execution time (run time binding)

· On entry to a subprogram or block

· At arbitrary points during execution

4. Translation time (compile time binding)

· Binding chosen by the programmer

· Binding chosen by the translator

· Binding chosen by the loader