Basic Computer Abbreviations 1. CPU – Central Processing Unit 2. RAM – Random Access Memory 3. ROM – Read-Only Memory 4. USB – Universal Serial Bus 5. HDD – Hard Disk Drive 6. SSD – Solid State Drive 7. GUI – Graphical User Interface 8. LAN – Local Area Network 9. WAN – Wide Area Network 10. IP – Internet Protocol Internet & Networking 11. HTTP – HyperText Transfer Protocol 12. HTTPS – HyperText Transfer Protocol Secure 13. URL – Uniform Resource Locator 14. DNS – Domain Name System 15. ISP – Internet Service Provider 16. VPN – Virtual Private Network 17. Wi-Fi – Wireless Fidelity 18. MAC – Media Access Control 19. IPV4/IPV6 – Internet Protocol Version 4/6 20. FTP – File Transfer Protocol Software & Operating System 21. OS – Operating System 22. BIOS – Basic Input Output System 23. DOS – Disk Operating System 24. API – Application Programming Interface 25. CAD – Computer-Aided Design 26. DBMS – Database Management System 27. PDF – Portable Document Format 28. SQL – Structured Query Language 29. XML – Extensible Markup Language 30. JPEG – Joint Photographic Experts Group Security & Cyber Terms 31. OTP – One-Time Password 32. SSL – Secure Sockets Layer 33. TFA/2FA – Two-Factor Authentication 34. DDoS – Distributed Denial of Service 35. AI – Artificial Intelligence 36. ML – Machine Learning 37. IOT – Internet of Things 38. USB – Universal Serial Bus 39. CLI – Command Line Interface 40. ISP – Internet Service Provider