IT Glossary
Understanding technical terms and concepts in information technology
Networking
LAN (Local Area Network)
A computer network that connects devices within a limited area such as a home, school, or office building.
WAN (Wide Area Network)
A telecommunications network that extends over a large geographic area, connecting multiple LANs.
Router
A networking device that forwards data packets between computer networks, acting as a gateway.
Switch
A networking device that connects devices on a computer network by using packet switching to forward data.
Firewall
A network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules.
IP Address
A numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.
DNS (Domain Name System)
A hierarchical naming system for computers, services, or other resources connected to the Internet or a private network.
VPN (Virtual Private Network)
A technology that creates a secure connection over a less secure network, such as the internet.
Security
Encryption
The process of encoding information in such a way that only authorized parties can access it.
Authentication
The process of verifying the identity of a user, device, or system.
Authorization
The process of determining what resources a user, device, or system can access.
Malware
Software designed to harm or exploit any programmable device, service, or network.
Phishing
A cyber attack that uses disguised email as a weapon to trick recipients into revealing sensitive information.
Ransomware
Malicious software that encrypts files and demands payment for their decryption.
Two-Factor Authentication (2FA)
A security process in which users provide two different authentication factors to verify themselves.
Zero-Day Vulnerability
A software vulnerability that is unknown to the vendor and has not been patched or fixed.
Cloud Computing
SaaS (Software as a Service)
A software licensing and delivery model in which software is licensed on a subscription basis and centrally hosted.
PaaS (Platform as a Service)
A cloud computing model that provides customers with a platform to develop, run, and manage applications.
IaaS (Infrastructure as a Service)
A cloud computing model that provides virtualized computing resources over the internet.
Public Cloud
Cloud computing services offered by third-party providers over the public internet.
Private Cloud
Cloud computing resources used exclusively by a single business or organization.
Hybrid Cloud
A computing environment that combines public and private cloud services.
Cloud Migration
The process of moving data, applications, or other business elements from on-premises infrastructure to the cloud.
Scalability
The ability of a system to handle increased load by adding resources.
Infrastructure
Server
A computer or system that provides resources, data, services, or programs to other computers over a network.
Data Center
A facility used to house computer systems and associated components, such as telecommunications and storage systems.
Backup
A copy of data that can be used to restore the original after a data loss event.
Disaster Recovery
A set of policies, tools, and procedures to enable the recovery or continuation of vital technology infrastructure.
Load Balancing
The process of distributing network traffic across multiple servers to ensure no single server bears too much load.
Virtualization
The creation of a virtual version of something, such as a server, storage device, network, or operating system.
Containerization
A lightweight alternative to full machine virtualization that involves encapsulating an application in a container with its own operating environment.
Microservices
An architectural style that structures an application as a collection of loosely coupled services.
Wireless & Mobile
WiFi
A wireless networking technology that allows devices to connect to the internet or communicate with each other wirelessly.
5G
The fifth generation of mobile network technology, offering faster speeds and lower latency than previous generations.
Bluetooth
A wireless technology standard for exchanging data between devices over short distances.
Mesh Network
A network topology in which the infrastructure nodes connect directly, dynamically, and non-hierarchically to as many other nodes as possible.
Access Point
A networking hardware device that allows wireless devices to connect to a wired network.
Bandwidth
The maximum rate of data transfer across a given path, typically measured in bits per second.
Latency
The time it takes for a data packet to travel from source to destination.
Signal Strength
The power level of a wireless signal, typically measured in decibels (dBm).
Data & Storage
Big Data
Extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations.
Data Analytics
The process of examining data sets to draw conclusions about the information they contain.
Data Mining
The process of discovering patterns in large data sets involving methods at the intersection of machine learning, statistics, and database systems.
SSD (Solid State Drive)
A storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory.
RAID (Redundant Array of Independent Disks)
A data storage virtualization technology that combines multiple physical disk drive components into one or more logical units.
Data Backup
The process of creating a copy of data to protect against data loss.
Data Recovery
The process of salvaging inaccessible, lost, corrupted, damaged, or formatted data from secondary storage.
Data Encryption
The process of encoding data to prevent unauthorized access while allowing authorized access.
Need More Information?
Our technical experts are here to help you understand any IT concepts or terminology
Documentation
Access our comprehensive technical documentation and guides
Knowledge Base
Browse our extensive knowledge base for detailed explanations
Expert Support
Contact our technical experts for personalized assistance