Chemical element Es •
Einsteinium, first made in 1952 (atomic number: 99) •
Hesperium (or Esperium), misidentified as an element in 1934
Computer software •
Es (operating system), developed by Nintendo, then Google •
es (Unix shell), a command-line interpreter •
Expert system, to automate decision making
Other computing uses •
.es, the top-level Internet domain for Spain •
ES EVM, a Soviet series of IBM computer clones •
ES register, in x86 computer architecture •
ECMAScript, popularly known as JavaScript •
Elasticsearch, a search engine •
Elementary stream, part of the MPEG communication protocol
Units of measure •
Exasecond (Es), an SI unit of time (greater than all elapsed time) •
Exasiemens (ES), an SI unit of electric conductance
Other uses in science and technology •
Edison screw, a type of lightbulb socket (e.g. ES14, ES27) •
Embryonic stem cell, in biology, from a fertilised ovum •
Electronic support, in military telecommunications ==Other uses==