A

• AD: Active Directory, directory service for Windows domain networks.
• ADFS: Active Directory Federation Services, Federated Identity.

B

BFF: Backend for Frontend, layer that sits between the clients and the backend.

C

D

• DHCP: Dynamic Host Configuration Protocol, automatically assigning IP.
• DNS: Domain Name System

E

F

• Firebase: Offers NoSQL & real-time hosting of databases, content, social authentication, notifications.
• FTP: File Transfer Protocol, transfer files from a server to a client on a computer network.

G

• GNU: GNU's Not Unix
• GSM: Global System for Mobile Communications
• GPU: Graphics Processing Unit
• GUI: Graphical User Interface

H

• HA: High availability
• HTTP: Hypertext Transfer Protocol
• HTTPd: Hypertext Transport Protocol Daemon
• HTTPS: HTTP Secure

I

• IPsec: Internet Protocol security
• IPTV: Internet Protocol Television
• IPv4: Internet Protocol version 4
• IPv6: Internet Protocol version 6

J

• J2EE: Java 2 Enterprise Edition
• J2ME: Java 2 Micro Edition
• J2SE: Java 2 Standard Edition
• JAXB: Java Architecture for XML Binding
• JAX-RPC: Java XML for Remote Procedure Calls
• JAXP: Java API for XML Processing
• JCE: Java Cryptography Extension
• JCP: Java Community Process
• JDBC: Java Database Connectivity
• JDK: Java Development Kit
• JEE: Java Enterprise Edition
• JDS: Java Desktop System
• JFC: Java Foundation Classes
• JFS: IBM Journaling File System
• JIT: Just-In-Time
• JME: Java Micro Edition
• JMX: Java Management Extensions
• JMS: Java Message Service
• JNDI: Java Naming and Directory Interface
• JNI: Java Native Interface
• JNZ: Jump non-zero
• JPEG: Joint Photographic Experts Group
• JRE: Java Runtime Environment
• JS: JavaScript
• JSE: Java Standard Edition
• JSON: JavaScript Object Notation
• JSP: Jackson Structured Programming
• JSP: JavaServer Pages
• JVM: Java Virtual Machine

K

L

• LDAP: Lightweight Directory Access Protocol
• LRU: Least Recently Used - organizes items in order of use, allowing you to quickly identify which item hasn't been used for the longest amount of time.

M

• MongoDB: NoSQL & cross-platform document-oriented database program
• MySQL: Relational database management system

N

• NFS: Network File System - distributed file system protocol allows a client computer to access files over a network in the same way they would access a local storage file.
• NTP: Network Time Protocol - internet protocol used to synchronize with computer clock time sources in a network

O

P

• PCI: Peripheral Component Interconnect, standard for connecting hardware devices to a computer's motherboard.
• PHP: Hypertext Preprocessor, server-side scripting language for web development.
• PostgreSQL: Relational database management system
• PWA: Progressive Web App, web applications that offer an app-like experience to users.

Q

R

• RAID: Redundant Array of Independent Disks, storage technology that combines multiple disk drives.
• RAM: Random Access Memory, temporary data storage used by the CPU for executing instructions.
• REDIS: Remote Dictionary Server - in-memory data structure store.
• REST: Representational State Transfer, software architectural style for web services.

S

• SaaS: Software as a Service
• SAN: Storage Area Network, dedicated network for providing access to consolidated storage.
• SAX: Simple API for XML
• sbin: superuser binary
• SDN: Software-defined networking - is an approach to networking that uses software-based controllers or application programming interfaces (APIs) to communicate with underlying hardware infrastructure and direct traffic on a network.
• SFTP: Simple File Transfer Protocol
• SFTP: SSH File Transfer Protocol
• SHA: Secure Hash Algorithm
• SOAP: Simple Object Access Protocol - XML-based messaging protocol for exchanging information among computer networks.
• SQL: Structured Query Language, language for managing and querying relational databases.
• SSH: Secure Shell, cryptographic network protocol for secure communication.

T

• TL;DR: too long; didn't read - used to introduce a summary of an online post or news article.
• TCP/IP: Transmission Control Protocol/Internet Protocol, the suite of communication protocols used on the internet.
• TLS: Transport Layer Security, cryptographic protocol for secure communication over a computer network.

U

• UI: User Interface, visual elements and interaction design of a software application.
• URL: Uniform Resource Locator, web address used to locate a resource on the internet.
• UX: User Experience, the overall experience of a user when interacting with a product or system.

V

• VPN: Virtual Private Network, secure and encrypted network connection over a public network.
• VR: Virtual Reality, computer-generated simulation of a three-dimensional environment.

W

• WAN: Wide Area Network, a network that spans a large geographical area.
• WYSIWYG: What You See Is What You Get, user interface that shows the final output during editing.

X

• XML: Extensible Markup Language, markup language for encoding documents in a machine-readable format.

Y

Z

• ZFS: Zettabyte File System, a combined file system and logical volume manager designed by Sun Microsystems.
• ZIP: Zone Information Protocol, a protocol used to configure and manage Zone Information Database (ZID) entries.
• ZK: ZooKeeper, a centralized service for maintaining configuration information, naming, synchronization, and more.
• ZPL: Z-level Programming Language, a high-level programming language designed for software development on Zilog Z80 microprocessors.
• ZSI: Zolera SOAP Infrastructure, a Python library for creating and parsing SOAP messages.