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Series Elastic Actuator
A series elastic actuator (SEA) is a robotic actuator with a spring in series between motor and output, proposed by Gill Pratt and Matthew Williamson at MIT in 1995.
Series of tubes
"Series of tubes" is a phrase Senator Ted Stevens of Alaska used in 2006 during a net neutrality debate, describing the Internet as "not a big truck."
Series resonant converter
A series resonant converter is a DC-DC power converter in which a series LC tank transfers energy through a high-frequency transformer, with output regulated mainly by varying switching frequency.
Serif
A serif is a small stroke at the end of a letter's main strokes, also the name for typefaces that carry them, as opposed to sans serif designs.
Serious incident (aviation)
A serious incident in aviation is an incident indicating a high probability of an accident, defined by ICAO Annex 13 and investigated like an accident.
Seriti Resources
Seriti Resources is a majority black-owned South African mining company producing thermal coal for Eskom power stations and export markets, supplying more than 30% of Eskom's coal.
Serpenoid curve
The serpenoid curve is a mathematical curve with sinusoidally varying curvature that approximates a snake's undulating body, proposed by Shigeo Hirose of the Tokyo Institute of Technology in 1972 and widely used to control snake robots.
Serpentine belt
The serpentine belt, also called a drive or accessory belt, is a single multi-ribbed rubber belt that uses an automatic tensioner to drive an engine's alternator, coolant pump, and other accessories.
Serra da Mesa hydroelectric plant
The Serra da Mesa hydroelectric plant (Usina Hidrelétrica de Serra da Mesa) is a 1,275 MW station on the Tocantins River in Goiás, Brazil, operating since 1998.
Serve Robotics
Serve Robotics is an American autonomous robotics company spun out of Postmates by Uber in 2021, operating over 2,000 Level 4 sidewalk delivery robots for Uber Eats and DoorDash.
Server (computing)
A server, also called a computer server, is a computer or program that provides shared services like files, email, and web pages to clients over a network.
Server Message Block
Server Message Block (SMB) is a network file sharing protocol that lets clients read, create, and update files and printers on remote servers over a network.
Server Name Indication
Server Name Indication (SNI) is a TLS extension that lets a client state the hostname it wants, so one server can host several HTTPS sites on one IP address.
Server room
A server room is a dedicated, environmentally controlled space housing computer servers, storage, and network equipment for an organization, smaller than a data center but requiring similar cooling, power, security, and fire protection.
Server System Infrastructure
Server System Infrastructure (SSI) is a server-industry initiative announced in 1998 and led by Intel, which developed open specifications for server power supplies and electronics bay designs.
Server-sent events
Server-sent events (SSE) is a web standard for servers pushing text messages to browsers over HTTP, delivered as events through EventSource and one-way, unlike WebSockets.
Server-side rendering
Server-side rendering (SSR) is the practice of generating HTML on the server and sending it to the client, improving accessibility, search crawling, and initial load times.
Server-side request forgery
Server-side request forgery (SSRF) is a web vulnerability where an attacker tricks a server into making requests to arbitrary destinations, often to steal cloud credentials.
Server-side scripting
Server-side scripting, also called server-side programming or coding, is the practice of running code on a web server per HTTP request to generate dynamic pages and data.
Serverless computing
Serverless computing, also called serverless architecture, is a cloud execution model where providers manage servers and scaling automatically, and developers pay only for actual use; AWS Lambda established the category in 2014.
Servi (robot)
Servi is an autonomous serving robot by Bear Robotics that carries food, drinks, and dirty dishes in restaurants and hotels, announced in 2020 with SoftBank Robotics.
Service Control Point
A Service Control Point (SCP) is a telephone network database node, central to the intelligent network, that switching offices query over SS7 for services like toll-free number translation.
Service credit
A service credit is a contractual remedy in which a cloud provider compensates a customer for failing to meet service-level agreement commitments, usually as a percentage of the fee.
Service drop
A service drop is the overhead conductor assembly carrying electricity from a utility's distribution line, usually the last pole, to a building, where the customer's service entrance begins.
Service entrance
A service entrance is the assembly of conductors, raceways, and equipment through which a utility delivers electric power to a building, running to the service disconnecting means.
Service function chaining
Service function chaining (SFC) is a network technique that steers classified traffic through ordered service functions like firewalls and load balancers, standardized by the IETF in RFC 7665.
Service level objective
A service level objective (SLO) is a measurable reliability target, such as 99.9% availability, that an organization commits to for a service over a time window.
Service mesh
A service mesh is an infrastructure layer that manages, secures, and observes communication between microservices, typically through proxies, so application code need not implement these functions.
Service message
A service message is an abbreviated telegraphic exchange between communications personnel regarding telegram transmission or circuit conditions; in international telegraphy, service telegrams and advices corrected errors.
Service module
A service module is the usually unpressurized portion of a spacecraft that carries the propulsion system, electrical power, and consumables such as propellant, oxygen, and water, and is jettisoned before re-entry.