This repository is a curated collection of Computer Science fundamentals resources for placement/interview preparation. It contains no executable code, applications, or software components. Instead, it aggregates PDFs, markdown notes, cheatsheets, and interview question banks across 7 core CS domains: Computer Networks, DBMS & SQL, Data Structures & Algorithms, Object-Oriented Programming, Operating Systems, Software Engineering, and System Design. The repository also includes general career resources: a list of companies hiring freshers off-campus, HR interview questions, LeetCode problem sets, a cover letter template, and AI prompts for interview preparation. The content appears sourced from various educational platforms (GeeksforGeeks, Striver's sheets, etc.) and is organized as a reference library for students preparing for technical interviews. The markdown files (README.md, CN-Roadmap.md, Computer-Network-Notes-for-Placements-and-GATE.md, and topic READMEs in each folder) provide structured topic outlines and resource links, while the bulk of the content resides in 50+ PDF/docx files that are not directly readable in this analysis.