SRT, or Secure Reliable Transport, is an open UDP-based protocol that carries live video over unreliable networks with low latency and encryption.
An SSD, or solid-state drive, is a storage device that keeps data in NAND flash memory, with no moving parts, for far…
SSG, or static site generation, builds every page of a web application into ready HTML files at build time instead of rendering…
An SSID (service set identifier) is the name of a Wi-Fi network, up to 32 bytes long, that access points advertise and…
SSIM is a full-reference video quality metric that compares luminance, contrast and structure between a distorted image and its original.
SSO (single sign-on) lets a user authenticate once with a central identity provider and then reach many applications without signing in again.
SSR (server-side rendering) generates the HTML of a web application on the server for each request, so pages arrive ready to display.
SSRF (server-side request forgery) is a flaw that lets an attacker make a server send requests to internal or unintended network destinations.
Stable Diffusion is an open-weight latent diffusion model for generative AI that creates and edits images from text prompts by denoising in…
A stablecoin is a crypto token designed to hold a steady value against a reference asset, usually the US dollar, through reserves…
A stack is a last-in, first-out data structure in which elements are added and removed only at the top, using constant-time push…
A stacked sensor is a CMOS image sensor built from bonded layers that separate pixels from processing circuits, enabling very fast readout…
Standard deviation in statistics measures how far values typically spread around their mean, expressed in the same units as the data.
A standard user account is an operating system account that can run programs and change personal settings but cannot change system-wide configuration.
A star schema is a data modeling pattern that places one central fact table of measurements among denormalized dimension tables for fast…
Starlink is a satellite internet service from SpaceX that delivers broadband through a constellation of low Earth orbit satellites and flat phased…
A startup is a young company built to find a repeatable, scalable business model under high uncertainty, usually aiming for rapid growth.
A static asset in web architecture is a file such as an image, stylesheet, script or font that is served unchanged to…
A static IP address is an IP address assigned permanently to a device or interface, configured manually or reserved so that it…
A static route is a routing table entry that an administrator configures manually, telling a router which next hop or interface reaches…
A status page is a public or private web page where a SaaS provider reports the current health of its service, incidents…
Steam is the Valve digital distribution platform for PC games that combines a store, a launcher, automatic updates, cloud saves and community…
A stepper motor is a brushless electric actuator that turns in fixed angular steps, letting robots position axes precisely without a feedback…
Stereo is a two-channel audio format that uses left and right signals to create a phantom image of sound sources positioned between…
Stereo vision recovers depth from two cameras a known distance apart by matching points and measuring disparity, a core technique in robot…
A sticky session is a load balancing method that sends every request from the same client to the same backend server for…
A stockout occurs when an online store cannot fill demand for a product from available inventory, causing lost sales, backorders or unhappy…
A storage bucket in cloud storage is a named top-level container for objects that sets their location, access rules, lifecycle and versioning.
A storage class in cloud storage is a tier that sets the price, availability and retrieval behavior of stored objects for a…
Storage Spaces is the Windows feature that pools physical drives and creates virtual disks with mirror or parity resiliency, replacing older software…
The STP model is a marketing framework of segmentation, targeting and positioning that decides which customers to serve and how to be…
strace is a Linux diagnostic tool that traces the system calls and signals of a process, showing how a program interacts with…
A stream key is the secret token that authorizes an encoder to push a live video feed to one specific channel on…
Stream processing computes results continuously over unbounded event streams as data arrives, using windows, state and watermarks to deliver low latency.
A streamer is a creator who broadcasts live video to an online audience, interacting with viewers in real time and earning from…
Street photography is a genre of photography that records unposed moments of everyday life in public places, relying on observation and timing.
A strobe is an electronic flash unit, usually mains or battery powered, that fires a brief, intense burst of light for studio…
Structured data is data organized under a predefined schema of fields and types, such as database tables, so it can be queried,…
Structured output makes a language model return data in a defined machine-readable format, usually JSON matching a schema, so automation can use…
Stutter in games is a visible hitch caused by irregular frame delivery, when single frames take far longer than their neighbors even…
Subject tracking is the autofocus function that identifies a chosen subject and keeps focus on it as it moves across the frame…
A subnet mask is a 32-bit value that splits an IPv4 address into network and host parts, defining which addresses a device…
A subquery in SQL is a SELECT statement nested inside another statement, supplying a value, a list or a derived table to…
SubRip is the plain-text .srt subtitle format that stores numbered cues with start and end timecodes, widely used for captions and subtitles…
The subscription model in SaaS charges customers a recurring fee for continued access to software, replacing one-time licenses with ongoing revenue.
Subtitles are timed on-screen text that renders a video's dialogue, usually translated, so viewers can follow speech they cannot understand or hear.
sudo is the Linux command that lets an authorized user run a single command as root or another user, governed by the…
Supervised learning is the machine learning approach in which a model learns to map inputs to known outputs from labeled training examples.
Supervisord is a Python-based process supervisor for Unix-like servers that starts, monitors and automatically restarts long-running programs.
Surround sound is a spatial audio method that places loudspeakers around the listener, such as in 5.1 or 7.1 layouts, to reproduce…