Introduction to Programming and Data Structures
Introduction
The instructor introduces themselves and the course, explaining who the target audience is and what will be covered.
- The course is on C programming and Data Structures for students preparing for GATE.
- The syllabus covers topics according to the official GATE syllabus but is also relevant to college students and those preparing for campus interviews.
- Programming gives you power over your computer, making this subject important for anyone in IT.
- Managing data efficiently is crucial, which is where Data Structures comes in.
- The course has a practical aspect, with an emphasis on coding.
Syllabus Overview
The instructor provides an overview of what will be covered in the syllabus.
C Programming
- Variables are entities used to store values. This topic is important from a GATE point of view.
- Different types of operators will be covered including Logical, Bit-wise, Assignment, Arithmetic etc.
- Conditionals like IF-ELSE, SWITCH and loops like FOR, WHILE, DO-WHILE etc. will be discussed.
- Functions in C will also be covered.
- Recursion is a trickier topic but it's important to understand recursive programs efficiently.
- Pointers and arrays are another important topic that will be taught simply.
Data Structures
Stacks
Queues
Linked List
Trees
Binary Search Trees
Binary Heaps
Graphs
After completion of programming section completely and thoroughly, we will shift our attention to Data Structures.
Expectations
The instructor explains what students can expect from the course.
- All topics mentioned above will be covered as well as any left out topics in the least possible time frame.
- Lectures are micro lectures of short duration and easy to understand.
- Homework assignments will be provided to help cement concepts.
- Previous year GATE questions will be covered.
- Students can post comments in the comment section below if they have any doubts regarding the lectures.
History of Computing
The instructor provides a brief history of computing.
- Long ago, people used to remember codes in binary format since there was no concept of programming languages.
- They had to write down the codes in machine understandable language that is 0’s and 1’s.
Binary and Assembly Language
In this section, the speaker explains the difference between binary and assembly language. They also discuss how assembly language simplifies adding numbers in comparison to binary.
Binary Representation
- Each letter in "HELLO" represents 8 bits in binary or octets.
- 8 bits make up a binary number.
Adding Numbers in Assembly Language
- Assembly language simplifies adding numbers by using variables instead of bit patterns.
- To add two variables A and B, you would write "ADD A, B".
The Need for C Language
- Assembly language is not portable across different machines, making it difficult to run code on different computers.
- UNIX operating system was originally developed in assembly language but was rewritten in C due to its portability and requiring less lines of code than assembly language.
- C programs are portable and not meant for specific hardware devices.
Advantages of C Language
- C requires less lines of code compared to its counterpart, such as assembly language when performing tasks like addition operations.
- C is designed to be simple for both programmers and newbies alike while still being machine understandable with the help of a compiler that translates human-readable expressions into machine-understandable codes.