IT Explained
Clear, comprehensive explanations of IT terms, cybersecurity concepts and technologies for professionals — written by experts, for experts.

What is Predictive Maintenance? Definition, How It Works & Use Cases
Predictive maintenance uses IoT sensors and machine learning to predict equipment failures before they occur. Learn how it works, benefits, and implementation strategies.

What is PLC? Definition, How It Works & Use Cases
PLC (Programmable Logic Controller) is an industrial computer that automates manufacturing processes. Learn how PLCs work, their applications, and best practices.

What is Packet Sniffing? Definition, How It Works & Use Cases
Packet sniffing captures and analyzes network traffic for troubleshooting, security monitoring, and performance optimization. Learn tools, techniques, and best practices.

What is NetFlow? Definition, How It Works & Use Cases
NetFlow is a network protocol for collecting IP traffic information. Learn how NetFlow works, its benefits for network monitoring, and best practices.

What is MQTT? Definition, How It Works & Use Cases
MQTT (Message Queuing Telemetry Transport) is a lightweight IoT protocol for device communication. Learn how MQTT works, its use cases, and best practices.

What is Modbus? Definition, How It Works & Use Cases
Modbus is a widely-used industrial communication protocol for connecting PLCs, SCADA systems, and field devices. Learn how Modbus works and its applications.

What is LPWA? Definition, How It Works & Use Cases
LPWA (Low Power Wide Area) networks enable long-range IoT connectivity with minimal power consumption. Learn about LoRa, NB-IoT, Sigfox technologies and applications.

What is an IP Address? Definition, Types & How It Works
An IP address is a unique identifier for devices on a network. Learn about IPv4, IPv6, types of IP addresses, and how network addressing works.

What is IIoT? Definition, How It Works & Use Cases
IIoT (Industrial Internet of Things) connects industrial equipment to networks for smart manufacturing. Learn how IIoT works, its applications, and benefits.

What is HTTP? Definition, How It Works & Use Cases
HTTP (HyperText Transfer Protocol) is the foundation of web communication. Learn how HTTP works, its evolution to HTTPS, and best practices for developers.

What is Bandwidth? Definition, How It Works & Use Cases
Bandwidth measures the maximum data transfer capacity of a network connection. Learn how bandwidth works, measurement units, and optimization strategies.

What is HL7? Definition, How It Works & Use Cases
HL7 (Health Level 7) is a set of international standards for healthcare data exchange. Learn how HL7 enables interoperability between medical systems.

What is HCI? Definition, How It Works & Use Cases
HCI (Hyper-Converged Infrastructure) combines compute, storage, and networking into a single system. Learn how HCI works, its benefits, and implementation best practices.

What is DICOM? Definition, How It Works & Use Cases
DICOM (Digital Imaging and Communications in Medicine) is the global standard for medical imaging data. Learn how DICOM works, its applications, and implementation.

What is a Database? Definition, Types & Use Cases
A database is an organized collection of structured data stored electronically. Learn about database types, how they work, and best practices for IT professionals.

What is CCTV? Definition, How It Works & Use Cases
CCTV (Closed-Circuit Television) is a video surveillance system using cameras to monitor and record activities. Learn how CCTV works, types, and security applications.

What is Active Directory? Definition, How It Works & Use Cases
Active Directory (AD) is Microsoft's directory service for Windows networks. Learn how AD works, its components, use cases, and best practices for IT administrators.

