In today’s rapidly evolving digital world, the internet is no longer a luxury but a fundamental part of daily life. From remote work to digital learning, streaming entertainment to smart home technologies, the breadth of internet applications is vast and continually expanding. The terminology accompanying these digital innovations can often be as complex as the technology itself. Whether you’re a tech enthusiast, a professional seeking to enhance your digital literacy, or simply a curious individual navigating the world wide web, understanding these terms is essential.
Our comprehensive “Broadband & Internet Glossary of Terms” serves as your definitive guide to demystifying the jargon. We’ve gathered an extensive list of terms, definitions and meanings to help you understand what broadband and internet technologies are about. From basic concepts like ‘bandwidth’ and ‘DSL’ to ‘Latency’ and ‘Fibre Optics,’ this glossary aims to convert confusing technical language into clear, understandable information.
We will continue to expand this list of terms on an ongoing basis. We also soon allow you to request terms to be added to this list.
Enjoy!
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- I/O Controller Hub (ICH)
- IaaS (Infrastructure as a Service)
- IANA (Internet Assigned Numbers Authority)
- ICANN (Internet Corporation for Assigned Names and Numbers)
- Identity Access Management (IAM)
- Identity Service Engine (ISE)
- IEEE 802.1Q
- IEEE 802.11ad
- IEEE 802.11ax
- IEEE 802.16
- IEEE 1394 (FireWire)
- IETF (Internet Engineering Task Force)
- IGMP (Internet Group Management Protocol)
- IGMP Snooping
- Image Map
- Immediate Addressing
- Impulse Noise
- In-Band Management
- In-Memory Database (IMDB)
- Inferencing
- Information Leak
- Infrared Communication
- Infrastructure-as-a-Service (IaaS)
- Ingress Filtering
- Initial Sequence Number
- Inline Data Deduplication
- Inline DDoS Mitigation
- Inline Encryption
- Inline Network Appliance
- Inline Signature Detection
- Input-Output Module (IOM)
- Integrated Access Device (IAD)
- Integrated Circuit Card Identifier (ICCID)
- Integrated Service Digital Network (ISDN)
- Intelligent Network Service
- Inter-Device Synchronization
- Inter-Switch Link (ISL)
- Inter-Symbol Interference
- Interactive Applications
- Interactive Voice Response (IVR)
- Interception Proxy
- Interface Descriptor Block (IDB)
- Interleaving
- Intermediate Distribution Frame (IDF)
- Intermodulation Distortion
- Internal Network Address Translation (INAT)
- Internationalized Domain Name (IDN)
- Internet Backbone
- Internet Control Message Protocol (ICMP)
- Internet Engineering Task Force (IETF)
- Internet Exchange Point (IXP)
- Internet Group Management Protocol (IGMP)
- Internet Key Exchange (IKE)
- Internet Message Access Protocol (IMAP)
- Internet Protocol (IP)
- Internet Protocol Security (IPsec)
- Internet Relay Chat (IRC)
- Interoperability
- Interworking Function (IWF)
- Intrusion Detection and Prevention System (IDPS)
- Intrusion Detection System (IDS)
- Intrusion Prevention System (IPS)
- IntServ (Integrated Services)
- IoT (Internet of Things)
- IP Address
- IP Address Block (IPAB)
- IP Address Management (IPAM)
- IP Address Spoofing
- IP Multimedia Core Network Subsystem (IMS)
- IP Multimedia Subsystem (IMS)
- IP Network-to-Network Interface (NNI)
- IP Office
- IP Phones
- IP Surveillance
- IP Telephony
- IP Tunneling Protocol
- IPv4 (Internet Protocol version 4)
- IPv6 (Internet Protocol version 6)
- IS-IS (Intermediate System to Intermediate System)
- ISAKMP (Internet Security Association and Key Management Protocol)
- ISDB (Integrated Services Digital Broadcasting)
- ISDN (Integrated Services Digital Network)
- ISDN User Part (ISUP)
- Island-Hopping Attack
- ISO/OSI Reference Model
- ISP (Internet Service Provider)
- ISP Peering
- IT Asset Management (ITAM)
- IT Infrastructure Library (ITIL)
- IT Service Management (ITSM)
- ITSP (Internet Telephony Service Provider)
- ITU-T (International Telecommunication Union – Telecommunication Standardization Sector)




