General IT

• IT: Information Technology
• OS: Operating System
• GUI: Graphical User Interface
• CPU: Central Processing Unit
• RAM: Random Access Memory
• HDD/SSD: Hard Disk Drive / Solid State Drive
• MB/GB/TB: Megabyte / Gigabyte / Terabyte
• LAN/WAN: Local Area Network / Wide Area Network
• Wi-Fi: Wireless Fidelity
• FTP: File Transfer Protocol
• HTTP/HTTPS: Hypertext Transfer Protocol / Secure Hypertext Transfer Protocol
• URL: Uniform Resource Locator
• VPN: Virtual Private Network

Software

• SW: Software
• DBMS: Database Management System
• ERP: Enterprise Resource Planning
• CRM: Customer Relationship Management
• CMS: Content Management System
• API: Application Programming Interface

Hardware

• HW: Hardware
• GPU: Graphics Processing Unit
• MB: Motherboard
• PSU: Power Supply Unit
• NIC: Network Interface Card

Networking

• IP: Internet Protocol
• DNS: Domain Name System
• SSH: Secure Shell
• SMTP/POP3: Simple Mail Transfer Protocol / Post Office Protocol 3

Security

• VPN: Virtual Private Network
• IDS/IPS: Intrusion Detection System / Intrusion Prevention System
• DDoS: Distributed Denial-of-Service

Other

• UI/UX: User Interface / User Experience
• AI: Artificial Intelligence
• ML: Machine Learning
• IoT: Internet of Things
• BYOD: Bring Your Own Device