About Open Source Code:
- Open source is a term that originally referred to open source software (OSS).
- Open source software is code that is designed to be publicly accessible—anyone can see, modify, and distribute the code as they see fit.
- Open-source software is developed in a decentralized and collaborative way, relying on peer review and community production.
What is Source code?
- It is the set of instructions and statements written by a programmer using a computer programming language.
- This code is later translated into machine language by a compiler. The translated code is referred to as object code.
- Source code is the source of a computer program.
- It contains declarations, instructions, functions, loops and other statements, which act as instructions for the program on how to function.
- Programs may contain one or more source code text files, which can be stored on a computer’s hard disk, in a database, or printed in books of code snippets.
What is closed-source software?
- It is software in which the public is not given access to the source code, so they can’t see or modify it in any way.
Q1) What is Software?
Software is one which comprises the entire set of programs, procedures, and routines associated with the operation of a computer system.
Source: Twitter publicly shares source codes
Last updated on Sep, 2026
→ UPSC 2027 Notification will be released on 13 January 2027 at upsconline.nic.in.
→ Check out the latest UPSC Syllabus here.
→ Download UPSC Model Answers for Mains 2026
→ UPSC Mains Question Paper 2026 is out now for Essay & GS Paper 1, 2, 3 & 4.
→ UPSC Calendar 2027 has been released.
→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2027 for structured answer writing practice, expert evaluation, and exam-oriented feedback.
→ Join Vajiram & Ravi’s UPSC Mentorship Program 2027 for personalized guidance, strategy planning, and one-to-one support from experienced mentors.
→ Go through the UPSC Mains Previous Year Papers to enhance your preparation.
→ UPSC has released UPSC Toppers List 2025 with the Civil Services final result on its official website.
→ Also check Best UPSC Coaching in India








