IT Glossary

📚 List of acronyms for computer terms. 📚

Contents

• IT Glossary
  • Contents
  • Glossary
    • A
    • B
    • C
    • D
    • E
    • F
    • H
    • I
    • L
    • M
    • N
    • O
    • P
    • Q
    • R
    • S
    • T
    • U
    • V
    • Z
  • Contributing
  • License
  • Contact

Glossary

A

• AAA: Authentication, Authorization and Accounting.
• ACL: Access Control Lists.
• ACU: Address Computation Unit.
• AES: Advanced Encryption Standard.
• AGU: Address Generation Unit.
• AH: Authentication Header.
• AI: Artificial Intelligence.
• AKM: Authentication and Key Management.
• ALU: Arithmetic Logic Unit.
• ANN: Artificial Neural Network.
• AoE: ATA over Ethernet.
• AP: Access Point.
• API: Application Programming Interface.
• APT: Advanced Packaging Tool.
• APU: Accelerated Processing Unit.
• ARP: Address Resolution Protocol.
• ATA: AT Attachment.
• AWS: Amazon Web Services.

B

• BD: Big Data.
• BIOS: Basic Input/Output System.
• BGP: Border Gateway Protocol.
• BPDU: Bridge Protocol Data Unit.
• BSoD: Blue Screen of Death.
• BTRFS: B-tree File System.

C

• CBAC: Context-Based Access Control.
• CBT: Changed Block Tracking.
• CDP:
  • Cisco Discovery Protocol.
  • Continuous Data Protection.
• CERT: Computer Emergency Response Team.
• CGNAT: Carrier Grade NAT.
• CIDR: Classless Interdomain Routing.
• CMOS: Complementary Metal-Oxide-Semiconductor.
• CN: Common Name.
• CoPP: Control Plane Policing.
• CPPr: Control Plane Protection.
• CPS: Cyber-Physical System.
• CPU: Central Processing Unit.
• CRL: Certificate Revocation List.
• CSS: Cascading Style Sheets.
• CV: Computer Vision.
• CVE: Common Vulnerabilities and Exposures.
• CWE: Common Weakness Enumeration.

D

• DAC: Discrectionary Access Control.
• DAS: Direct Attached Storage.
• DCIM: Data Center Infrastructure Management.
• DDoS: Distributed Denial of Service.
• DEP: Data Execution Prevention.
• DES: Data Encryption Standard.
• DFIR: Digital Forensics and Incident Response.
• DHCP: Dynamic Host Configuration Protocol.
• DL: Deep Learning.
• DLP: Data Loss Prevention.
• DN: Distinguished Name.
• DNS: Domain Name System.
• DoS: Denial of Service.
• DRS: Distributed Resource Scheduler.
• DSCP: Differentiated Services Codepoint.
• DWDM: Dense Wavelength Division Multiplexing.

E

• EAP: Extensible Authentication Protocol
• EBR: Extended Boot Record.
• ECDSA: Elliptic Curve Digital Signature Algorithm.
• ECN: Explicit Congestion Notification.
• EDR: Endpoint Detection & Response.
• EEPROM: Electronically EPROM.
• EFI: Extensible Firmware Interface.
• EID: Endpoint ID.
• EIGRP: Enhanced Interior Gateway Routing Protocol.
• EPROM: Erasable PROM.
• ERP: Enterprise Resource Planning.
• ESP:
  • Encapsulating Security Payload.
  • EFI System Partition.
• EUID: Effective User ID.

F

• FAT: File Allocation Table.
• FIB: Forwarding Information Base.
• FPGA: Field Programmable Gate Arrays.
• FPU: Floating-Point Unit.
• FQDN: Fully Qualified Domain Name.
• FS: File System.
• FTP: File Transfer Protocol.

G

• GCC: GNU Compiler Collection.
• GIMP: GNU Image Manipulation Program.
• GNU: GNU's Not Unix.
• GPG: GNU Privacy Guard.
• GPIO: General Purpose Input/Output.
• GPL: GNU General Public License.
• GPS: Global Positioning System.
• GPT: GUID Partition Table.
• GPU: Graphics Processing Unit.
• GRUB: GRand Unified Bootloader.
• GUID: Globally Unique IDentifier.

H

• HA: High Availability.
• HDD: Hard Disk Drive.
• HDL: Hardware Description Language.
• HKEY: Handle to Registry-Key.
• HMI: Human-Machine Interface.
• HSRP: Hot Standby Router Protocol.
• HTTP: Hyper-Text Transfer Protocol.

I

• IaaS: Infrastructure as a Service.
• IANA: Internet Assigned Numbers Authority.
• IC: Integrated Circuit.
• ICMP: Internet Control Message Protocol.
• ICN: Information Centric Networking.
• IEEE: Institute of Electrical and Electronics Engineers.
• IETF: Internet Engineering Task Force.
• IGMP: Internet Group Management Protocol.
• IHL: Internet Header Length.
• IOPS: Input/Output Operations Per Second.
• IoT: Internet of Things.
• IP: Internet Protocol.
• IPSec: IP Security.
• ISA: Instruction Set Architecture.
• iSCSI: Internet Small Computer System Interface.
• ISP: Internet Service Provider.

J

• JBOD: Just a Bunch of Disks.
• JPEG: Joint Photographic Experts Group.

L

• LACP: Link Aggregation Control Protocol.
• LAG: Link Aggregation Group.
• LISP: Locator Id Separation Protocol.
• LDAP: Lightweight Directory Access Protocol.
• LLDP: Link Layer Discovery Protocol.
• LLM: Large Language Model.
• LUKS: Linux Unified Key Setup.
• LUN: Logical Unit Number.

M

• MAC:
  • Mandatory Access Control.
  • Media Access Control.
  • Message Authentication Code.
• MBR: Master Boot Record.
• MEMS: Micro-ElectroMechanical Systems.
• MitM: Man-in-the-Middle.
• ML: Machine Learning.
• MPLS: MultiProtocol Label Switching.
• MQTT: Message Queuing Telemetry Transport.
• MRU: Most Recently Used.
• MTPoD: Maximum Tolerable Period of Disruption.
• MTU:
  • Master Terminal Unit.
  • Maximum Transmission Unit.
• M2M: Machine-to-Machine.

N

• NAC: Network Access Control.
• NAS:
  • Network Access Server.
  • Network Attached Storage.
• NAT: Network Address Translation.
• NDP: Neighbor Discovery Protocol.
• NFS: Network File System.
• NFV: Network Function Virtualization.
• NLP: Natural Language Processing.
• NPS: Network Policy Server.
• NPU: Neural Processing Unit.
• NSE: Nmap Scripting Engine.
• NT: New Technologies.
• NTFS: NT File System.
• NTP: Network Time Protocol.
• NVRAM: Non-Volatile RAM.

O

• OCSP: Online Certificate Status Protocol.
• OLE: Object Linking and Embedding.
• OSPF: Open Shortest Path First.
• OWASP: Open Web Application Security Project.

P

• PAM: Pluggable Authentication Modules.
• PATA: Parallel ATA.
• PCA: Principal Component Analysis.
• PCB: Printed Circuit Board.
• PEAP: Protected EAP.
• PGP: Pretty Good Privacy.
• PHB: Per Hop Behavior.
• PIM: Protocol-Independent Multicast.
• PKI: Public Key Infrastructure.
• PLC: Programmable Logic Controller.
• PNG: Portable Network Graphics.
• PPPoE: Point to Point Protocol over Ethernet.
• PROM: Programmable ROM.

Q

• QoS: Quality of Service.

R

• RADIUS: Remote Authentication Dial-In User Service.
• RAID: Redundant Array of Inexpensive Disks.
• RAM: Random Access Memory.
• RDM: Remote Desktop Manager.
• RFC: Request For Comment.
• RINA: Recursive InterNetworking Architecture.
• RLOC: Routing LOCator.
• ROADM: Reconfigurable Optical Add-Drop Multiplixer.
• ROM: Read Only Memory.
• RPO: Recovery Point Objective.
• RSA:
  • Rivest, Shamir & Adleman.
  • Routing and Spectrum Assignment.
• RSCA: Routing, Spectrum and Core Assignment.
• RSSI: Received Signal Strength Indicator.
• RTC: Real Time Clock.
• RTMP: Real-Time Messasging Protocol.
• RTO: Recovery Time Objective.
• RTP: Real-time Transport Protocol.
• RTSP: Real-Time Streaming Protocol.
• RTU: Remote Terminal Unit.
• RWA: Routing and Wavelength Assignment.

S

• SA: Security Association.
• SAM: Security Account Manager.
• SAN: Storage Area Network.
• SATA: Serial ATA.
• SCP: Secure Copy Protocol.
• SCSI: Small Computer System Interface.
• SCTP: Stream Control Transmission Protocol.
• SDN: Software Defined Network.
• SHA: Secure Hash Algorithm.
• SIEM: Security Information and Event Management.
• SIMD: Single Instruction, Multiple Data.
• SIMT: Single Instruction, Multiple Threads.
• SIP: Session Initiation Protocol.
• SLAAC: Stateless Address Autoconfiguration.
• SNMP: Simple Network Management Protocol.
• SOC: Security Operations Center.
• SQL: Structured Query Language.
• SSID: Service Set IDentifier.
• SSH: Secure Shell.
• SSL: Secure Sockets Layer.
• STP: Spanning Tree Protocol.
• SVM: Support-Vector Machines.

T

• TAP: Test Anything Protocol.
• TCN: Topology Change Notification.
• TCP: Transmission Control Protocol.
• TEAP: Tunnel-based EAP
• TF: TensorFlow.
• TLS: Transport Layer Security.
• ToS: Type of Service.
• TTL: Time To Live.

U

• UAC: User Account Control.
• UDP: User Datagram Protocol.
• UEFI: Unified EFI.
• UFS: Unix File System.
• URI: Uniform Resource Identifier.
• URL: Uniform Resource Locator.
• UUID: Universally Unique Identifier.

V

• VDI: Virtual Disk Image.
• VHDL: VHSIC Hardware Description Language.
• VHSIC: Very High Speed Integrated Circuit Program.
• VLSI: Very Large Scale Integration.
• VLSM: Variable-Length Subnet Masking.
• VNC: Virtual Network Computing.
• VRRP: Virtual Router Redundancy Protocol.
• VT: Virtualization Technology.

W

• WAP: Wireless Application Protocol.
• WDM: Wavelength Division Multiplexing.
• WEP: Wired Equivalent Privacy.
• WPA: Wi-Fi Protected Access.
• WSUS: Windows Server Update Services.
• WWW: World Wide Web.
• WYSIWYG: What You See Is What You Get.

X

• XFS: "X" File System.
• XMPP: eXtensible Messaging and Presence Protocol.
• XSS: cross-Site Scripting.

Y

• YAML:
  • YAML Ain't Markup Language.
  • Yet Another Markup Language.

Z

• ZBF: Zone-Based Firewall.
• ZFS: Zettabyte File System.*

Contributing

Contributions are welcome! If you have improvements, bug fixes, or new terms to add, feel free to submit a pull request.

License

The content of this repository is licensed under the MIT License.

Contact

Feel free to get in touch with me!