Immutable backup
A backup protected against changes or deletion for a defined retention period and policy. Immutability does not replace permission separation or restoration tests.
Definition and sourcesKNOWLEDGE / FROM A TO Z
Glossary
Technology, explained clearly. Find a term, choose a letter or narrow the topic. Definitions include sources and their review date.
Terms 21 / 685
Clear filtersIn-feed video ads
A historical name for video ads inviting selection from feeds or results. Google's documentation uses the name in-feed video ads.
Definition and sourcesIn-stream ads
Ads shown before, during or after video content. Skipping options and charging rules depend on format and platform.
Definition and sourcesInfluencer marketing
A brand's cooperation with a creator connected to an audience. Assess audience fit, advertising disclosure and outcomes, not just follower counts.
Definition and sourcesInfographic
A visual presentation of information or data explaining relationships. It needs clear sources, honest proportions and a textual alternative for nonvisual access.
Definition and sourcesInfrastructure as a service
A service model supplying infrastructure such as virtual machines, networks and storage. Customers typically remain responsible for operating systems and applications.
Definition and sourcesInfrastructure as code
Describing infrastructure in versioned files rather than only manual configuration. It supports repeatability and review; secrets and state require separate protection.
Definition and sourcesMeta's platform for sharing and communicating through photos and video. Reach depends on features and recommendation systems; follower counts do not guarantee delivery.
Definition and sourcesInstagram Story
Instagram's short-lived publishing format, normally visible for 24 hours unless highlighted. Visibility and archiving depend on account settings.
Definition and sourcesInstallatron
A tool automating application installation and management on hosting. Automated setup does not remove responsibility for updates, configuration and backups.
Definition and sourcesIntegration tests
Tests of cooperation between components, such as application and database. They check contracts not covered by an isolated single-function test.
Definition and sourcesInteraction to Next Paint
A responsiveness metric describing interaction latency until the next visual update. It covers more stages than historical FID and is part of Core Web Vitals.
Definition and sourcesInterface
An agreed interaction boundary between user and system or between components. It may mean a screen, API or programming contract; context determines meaning.
Definition and sourcesInternal linking
Linking pages within the same website. It helps users and crawlers discover content and should reflect topic relationships and navigation needs.
Definition and sourcesInternet of Things
Connected devices collecting data or acting in the physical world. Security includes updates, device identity and access restrictions, not just connection encryption.
Definition and sourcesIntranet
An organisation's internal network or services for authorised users. Internal does not automatically mean secure; authentication and segmentation still matter.
Definition and sourcesIP (Internet Protocol)
Protocols for addressing and forwarding packets between networks, notably IPv4 and IPv6. IP itself guarantees neither delivery nor ordering nor encryption.
Definition and sourcesIP address
A network interface address used to route IP packets. It can change or be shared; an address alone does not uniquely identify a person.
Definition and sourcesIPv4 address
A 32-bit IP address, usually written as four dot-separated numbers. Limited public IPv4 availability encourages address sharing through NAT.
Definition and sourcesIPv6 address
A 128-bit IP address written in hexadecimal. IPv6 provides a much larger address space, while still requiring firewalls and access controls.
Definition and sourcesIT (Information Technology)
Tools and activities for processing, storing and communicating information. Business IT includes applications, devices, networks and their maintenance. It extends beyond programming.
Definition and sources