Sentiment analysis is a language AI task that classifies the opinion or emotional tone in text as positive, negative or neutral, often…
SEO (search engine optimization) is the practice of improving how a website is crawled, indexed and ranked so it earns more visibility…
Series A is the first major priced equity round in startup funding, usually led by venture capital after a company shows early…
A SERP, or search engine results page, is the page a search engine returns for a query, mixing organic results, ads, AI…
A server is a computer or program that provides services, data or resources to client devices over a network, usually running continuously…
Server provisioning is the process of preparing a server with hardware or virtual resources, an operating system, network settings and software for…
Server-sent events are a web API that lets a server push a continuous stream of text messages to the browser over one…
Serverless computing is a cloud execution model in which the provider runs, scales and bills code per request, so teams never manage…
A Service in Kubernetes gives a changing set of Pods one stable virtual IP address and DNS name and load-balances network traffic…
A service account is a non-human identity that an application, script or automated workflow uses to authenticate and access systems with defined…
A service credit is a contractual discount a SaaS provider grants on future invoices when it misses an availability or performance target…
A service robot is a robot that performs useful tasks for people or equipment outside industrial automation, in homes, hospitals, logistics and…
A service worker is a background script in browser JavaScript that intercepts network requests, enabling offline pages, caching and push messages.
A servo motor is a motor with built-in position feedback and a closed-loop drive that moves a robot joint to a commanded…
SFP is a hot-swappable transceiver form factor that lets a switch or network card port use fiber or copper links, typically at…
SFP+ is the enhanced small form-factor pluggable slot and module standard that carries 10 Gbit/s Ethernet over fiber or copper in network…
Shadow automation means workflows, bots and scripts that run business processes without the knowledge, review or controls of IT and security teams.
Sharding splits a database horizontally across several servers by a shard key, so each server stores and serves only part of the…
Shared hosting is a hosting model in which many customer accounts run on one server and share its CPU, memory, storage, IP…
Sharpening in image processing increases contrast along edges so that a photograph looks crisper, without adding any detail the camera did not…
Sharpness in photography is the perceived clarity of detail and edges in an image, shaped by resolution, acutance, focus, motion and viewing…
A shell script is a text file of commands that a Linux shell such as Bash executes in sequence to automate administration…
Shipment tracking follows a parcel from label creation to delivery using carrier scan events, so merchants and customers know where each order…
Shopify is a hosted e-commerce platform that rents merchants a complete online store with checkout, hosting, themes and apps for a monthly…
A shopping cart in e-commerce is the store component that holds selected products, calculates totals and passes the order to checkout and…
Short-form video is vertical video of seconds to a few minutes, served in swipeable feeds and built for fast discovery, loops and…
Shot noise is the random variation in the number of photons a camera sensor captures, the main source of noise in most…
A shotgun microphone is a highly directional microphone with an interference tube that favors sound from the front and rejects off-axis noise.
Shutter angle expresses video exposure time per frame as degrees of a rotary shutter, with 180 degrees giving half the frame interval.
Shutter count is the number of exposures a camera's mechanical shutter has made, used to judge wear, remaining service life and the…
Shutter speed in photography is the length of time the sensor gathers light, controlling exposure brightness, motion blur and camera shake.
A sidechain is an independent blockchain with its own consensus that connects to a main chain through a two-way bridge, used for…
Sidechain compression in mixing lets one signal control the gain reduction applied to another, used for ducking, pumping and frequency control.
SIEM is the security platform that collects, normalizes and correlates logs across an organization to detect threats, aid investigations and meet audit…
A signal chain in audio recording is the ordered path of devices and processes that a sound passes through from the source…
Signal-to-noise ratio in photography compares the useful image signal with random noise, determining how clean and detailed a digital photo looks.
A SIM card is a removable smart card that stores a subscriber identity and secret keys so a mobile network can authenticate…
Sim-to-real is the practice of training robot policies in simulation and transferring them to physical robots while closing the gap between both…
The singleton pattern is a creational design pattern that restricts a class to one instance and gives the program a global point…
Sketch is a macOS vector design tool for interface design, used in the design workflow to build screens, symbols, shared libraries and…
A skip link is an in-page link at the start of a web page that lets keyboard and screen reader users jump…
An SKU (stock keeping unit) is a merchant-defined code that identifies one sellable item variant in an e-commerce product catalog and inventory.
SLAAC is the IPv6 method in which hosts build their own global addresses from router advertisements, without needing a DHCP server.
SLAM, simultaneous localization and mapping, lets a robot build a map of an unknown environment while estimating its own position within that…
A slow query log is a database log that records SQL statements exceeding a set execution time, used to find and fix…
A smart bulb is an LED lamp with a built-in radio and controller that lets its brightness and color be changed remotely,…
A smart contract is a program stored on a blockchain that executes automatically and deterministically when a transaction calls it.
A smart device in the smart home is a connected household product that senses, acts or reports over a network and can…
A smart home is a residence whose devices are networked so they can be monitored, controlled and automated through apps, voice commands…
A smart home hub is the central controller that connects devices using different radio protocols and runs automations, often locally without the…