Very good notes

1. WELCOME

2. HIGH-LEVEL PROGRAMMING LANGUAGES
Presented by :NIVEDHITHA P.P
Department: bcom PA with ACCA
Subject : introduction to information technology
College name : Nilgiri college of arts and science

3. INTRODUCTION
Computers understand only machine language (0s and 1s).
Writing in machine code is difficult.
High-Level Languages (HLLs) were developed to make
programming easier.

4. DEFINITION
High-Level Language = Programming language with English-like
words & symbols.
Easy to read, write, and understand.
Examples: Python, Java, C, C++, JavaScript.

5. HISTORY
i. 1950s → FORTRAN (first HLL).
ii. 1960s → COBOL, BASIC.
iii. 1970s–1980s → C, Pascal, Ada.
iv. 1990s → C++, Java, Python.
v. Today → Swift, Kotlin, Go, Rust

6. FEATURES OF HLL
Simple, human-friendly syntax.
Portable across systems.
Structured programming support.
Rich libraries and functions.
Machine-independent.

7. TRANSLATOR (COMPILER & INTERPRETER)
1. HLL → Translator → Machine Code.
2. Compiler: Converts entire program at once (C, C++).
3. Interpreter: Converts line-by-line (Python, JavaScript).

8. ADVANTAGES
 Easy to learn & use.Faster program development.
 Debugging and maintenance easier.
 One program works on many platforms.
 Supports complex applications.

9. DISADVANTAGES
• Slower execution compared to low-level
languages.
• Less control over hardware.

10. APPLICATIONS
Python – AI, ML, Data Science.
C/C++ – Operating systems, Games.
Java – Web & Mobile apps.
JavaScript – Websites.
C# – Windows apps, Games.

11. CONCLUSION
High-Level Languages made programming accessible and efficient.
Backbone of modern computing.
From apps to AI → everything runs on HLL.

12. THANK YOU