Lesson 1 Introduction to C Programming

What is the primary purpose of programming?

• To design websites

• To instruct computers to perform tasks

• To manage databases

• To create graphics

Answer explanation

The primary purpose of programming is to instruct computers to perform tasks. While designing websites, managing databases, and creating graphics are applications of programming, the core function is to enable computers to execute commands.

Which of the following is considered a high-level programming language?

• Assembly

• C

• Python

• Machine Code

Answer explanation

Python is considered a high-level programming language because it abstracts complex details and provides a user-friendly syntax, making it easier to write and understand compared to lower-level languages like Assembly or Machine Code.

What is C often referred to as in the context of programming languages?

• A low-level language

• The mother language of all programming languages

• An object-oriented language

• A scripting language

Answer explanation

C is often referred to as 'the mother language of all programming languages' because it has influenced many modern languages and serves as a foundation for understanding programming concepts.

What does a compiler do in the C programming process?

• Links different source files together

• Translates assembly code to machine code

• Executes the C program

• Checks for syntax errors in the source code

Answer explanation

A compiler checks for syntax errors in the source code, ensuring that the code adheres to the language's rules before it can be translated into machine code or executed.

What is the role of the preprocessor in C programming?

• To link the program with libraries

• To compile the source code

• To interpret special preprocessor directives

• To execute the program

Answer explanation

The preprocessor in C programming interprets special preprocessor directives, such as #include and #define, before the actual compilation process begins. This allows for code inclusion and macro definitions, making it essential for preparing the source code.

Which of the following is NOT a part of the C environment?

• Linking

• Debugger

• Compiler

• Preprocessor

Answer explanation

The debugger is a tool used for testing and debugging code, but it is not a core part of the C environment. The C environment primarily consists of the compiler, preprocessor, and linking processes.

What file extension is typically associated with the output of an assembler on a UNIX system?

• .exe

• .o

• .bin

• .obj

Answer explanation

.o files are the standard output of assemblers on UNIX systems, representing object files. Other extensions like .exe and .bin are used for executable files, while .obj is more common in Windows environments.