IT 101: Acronyms

Let's take a quick rundown of most commonly used abbreviations in the tech universe.

  1. A: Address Record (Alt: Alias Record) (DNS Record)
  2. AAAA: IPv6 Address Record (DNS Record)
  3. ACK: Acknowledge
  4. API: Application Programming Interface
  5. AUX: Auxillary
  6. BGP: Border Gateway Protocol
  7. BNC: Bayonet Neill–Concelman
  8. BPO: Business Process Outsourcing
  9. BYOD: Bring Your Own Device
  10. CAA: Certificate Authorization Authority (DNS Record)
  11. CAT: Category
  12. CCTV: Closed Circuit TeleVision camera
  13. CIDR: Classless Inter-Domain Routing
  14. CLI: Command Line Interface (alt: Command Line Interpreter)
  15. CNAME: Canonical Name Record (Alt: Common Name) (DNS Record)
  16. CPE: Customer Premise Equipment
  17. CPU: Central Processing Unit
  18. CSS: Cascading Style Sheet
  19. DHCP: Dynamic Host Configuration Protocol
  20. DL: Download (or Downlink)
  21. DNS: Domain Name System
  22. DOS: Disk Operating System
  23. DVR: Digital Video Recorder
  24. EOF: End of File (or End of Frame)
  25. EXE: Executable
  26. FTP: File Transfer Protocol
  27. FTTx: Fibre to The x (x: H: Home, B: Building)
  28. GAL: Global Access List
  29. GIF: Graphics Interchange Format
  30. HD: High Definition
  31. HT: High Tension
  32. HTTP: Hyper Text Transfer Protocol
  33. HTML: Hyper Text Markup language
  34. ICMP: Internet Control Message Protocol
  35. IDE: Integrated Development Environment
  36. IDU: InDoor Unit
  37. IETF: Internet Engineering Task Force
  38. IMEI: International Mobile Equipment Identification number
  39. IP: Internet Protocol
  40. IPS: Intrusion Prevention System
  41. IR: Infra Red
  42. ISP: Internet Service Provider
  43. JAR: Java Archive
  44. JS: Javascript
  45. JSP: Java Server Page
  46. KB: Kilo Byte
  47. KYC: Know Your Customer
  48. LACP: Link Aggregation Control Protocol
  49. LAMP: Linux Apache MySQL PHP (Application Stack)
  50. LAN: Local Area Network
  51. LEMP: Linux (e)Nginx MySQL PHP (Application Stack)
  52. LLC: Logical Link Control (or Limited Liability Company)
  53. MB: Mega Byte
  54. MPLS: MultiProtocol Label Switching
  55. MTU: Maximum Transmissible Unit
  56. MX: Mail eXchange (DNS Record)
  57. NAT: Network Address Translation
  58. ND: Network Discovery
  59. NIC: Network Interface Card
  60. NS: Name Server (DNS Record)
  61. NTP: Network Time Protocol
  62. NVR: Network Video Recorder
  63. OCC: Operations Control Center
  64. ODU: OutDoor Unit
  65. OS: Operating System
  66. OSPF: Open Shortest Path First
  67. PC: Personal Computer
  68. PCI: Peripheral Component Interconnect
  69. POP: Point Of Presence
  70. POP3: Post Office Protocol v3
  71. POST: Power On Self Test
  72. POTS: Plain Old Telephone Service
  73. PTR: Pointer (DNS Record)
  74. QR Code: Quick Response Code
  75. QC: Quality Control
  76. RAID: Redundant Array of Independent Disks
  77. RDNS: Reverse DNS
  78. RF: Radio Frequency
  79. RIP: Routing Information Protocol
  80. RIL: Radio Information Layer
  81. ROI: Return On Investment
  82. RT: ReTweet
  83. SD: Standard Definition / Secure Digital
  84. SDK: Software Development Kit
  85. SFP: Small Form-factor Pluggable
  86. SMTP: Simple Mail Transport Protocol
  87. SNMP: Simple Network Managment Protocol
  88. SSH: Secure SHell
  89. SSID: Service Set IDentifier
  90. RTP: Realtime Transfer Protocol
  91. TCP: Transmission Control Protocol
  92. TFTP: Trivial File Transfer Protocol
  93. TOFU: Trust On First Use
  94. TXT: Text (DNS Record)
  95. UDP: User Datagram Protocol
  96. URI: Uniform Resource Indicator
  97. UTP: Unshielded Twisted Paid
  98. VLAN: Virtual Local Area Network
  99. VPN: Virtual Private Network
  100. WAN: Wide Area Network
  101. WPA: Wifi Protected Access


XML: eXtensible Markup Language
XSS: Cross Site Scripting
YT: YouTube
ZIF: Zoomable Image Format