Introduction to Computer and Applications

What's included across 15 sections:

• Section 1–2: Computer introduction, history, types, hardware, CPU formulas & solved examples
• Section 3: Software (system vs application), compiler vs interpreter
• Section 4: Number systems—Binary/Hex conversions with full solved examples
• Section 5: Data units (bits, bytes, KB–PB) with conversion formulas
• Section 6: Operating systems—functions, types, key concepts
• Section 7: Programming fundamentals—variables, data types, algorithms, Big-O notation
• Section 8: All major programming languages comparison + OOP principles (APIE)
• Section 9: Python programming—syntax, loops, functions, lists, dictionaries with code
• Section 10: HTML, CSS, JavaScript with real code examples
• Section 11: Databases & SQL (CREATE, SELECT, INSERT, UPDATE, DELETE)
• Section 12: Networking—LAN/WAN/IP addresses, DNS, how internet works
• Section 13: Applications—Office, Excel formulas, cybersecurity, AI apps
• Section 14: 5 Automation Examples—File Renaming, email sending, cron jobs, Excel Processing, and web scraping
• Section 15: Quick revision cards, cheat sheets, and key formulas summary