29-letter words containing ra
- secure file transfer protocol — SSH File Transfer Protocol
- sexually transmitted diseases — any disease characteristically transmitted by sexual contact, as gonorrhea, syphilis, genital herpes, and chlamydia. Abbreviation: STD.
- simple mail transfer protocol — (messaging) (SMTP) A protocol defined in STD 10, RFC 821, used to transfer electronic mail between computers, usually over Ethernet. It is a server to server protocol, so other protocols are used to access the messages. The SMTP dialog usually happens in the background under the control of the message transfer agent, e.g. sendmail but it is possible to interact with an SMTP server using telnet to connect to the normal SMTP port, 25. E.g. telnet mhs-relay.ac.uk 25 You should normally start by identifying the local host: HELO wombat.doc.ic.ac.uk You can then issue commands to verify an address or expand an alias: VRFY [email protected] VRFY postmaster or expand a mailing list: EXPN c-help You can even send a message: MAIL From:<[email protected]> RCPT To:<[email protected]> DATA What is the point? . QUIT This is useful if you want to find out exactly what is happening to your message at a certain point. See also Post Office Protocol, RFC 822, sendmail.
- small business administration — a federal agency, created in 1953, that grants or guarantees long-term loans to small businesses. Abbreviation: SBA, S.B.A.
- someone has raised their game — If you say that someone has raised their game, you mean that they have begun to perform better, usually because they were under pressure to do so.
- stop sth (dead) in its tracks — If someone or something stops a process or activity in its tracks, or if it stops dead in its tracks, they prevent the process or activity from continuing.
- surgical specialist registrar — a hospital doctor senior to a house officer but junior to a consultant, specializing in surgery
- symbolic automatic integrator — (mathematics, tool) (SAINT) A symbolic mathematics program written in Lisp by J. Slagle at MIT in 1961.
- synchronous digital hierarchy — (communications, standard) (SDH) An international digital telecommunications network hierarchy which standardises transmission around the bit rate of 51.84 megabits per second, which is also called STS-1. Multiples of this bit rate comprise higher bit rate streams. Thus STS-3 is 3 times STS-1, STS-12 is 12 times STS-1, and so on. STS-3 is the lowest bit rate expected to carry ATM traffic, and is also referred to as STM-1 (Synchronous Transport Module-Level 1). The SDH specifies how payload data is framed and transported synchronously across optical fibre transmission links without requiring all the links and nodes to have the same synchronized clock for data transmission and recovery (i.e. both the clock frequency and phase are allowed to have variations, or be plesiochronous). SDH offers several advantages over the current multiplexing technology, which is known as Plesiochronous Digital Hierarchy. Where PDH lacks built-in facilities for automatic management and routing, and locks users into proprietary methods, SDH can improve network reliability and performance, offers much greater flexibility and lower operating and maintenance costs, and provides for a faster provision of new services. Under SDH, incoming traffic is synchronized and enhanced with network management bits before being multiplexed into the STM-1 fixed rate frame. The fundamental clock frequency around which the SDH or SONET framing is done is 8 KHz or 125 microseconds. SONET (Synchronous Optical Network) is the American version of SDH.
- thinking machines corporation — (company) The company that introduced the Connection Machine parallel computer ca 1984. Four of the world's ten most powerful supercomputers are Connection Machines. Thinking Machines is the leader in scalable computing, with software and applications running on parallel systems ranging from 16 to 1024 processors. In developing the Connection Machine system, Thinking Machines also did pioneering work in parallel software. The 1993 technical applications market for massively parallel systems was approximately $310 million, of which Thinking Machines Corporation held a 29 percent share. Thinking Machines planned to become a software provider by 1996, by which time the parallel computing market was expected to have grown to $2 billion. Thinking Machines Corporation has 200 employees and offices worldwide. Address: 245 First Street, Cambridge, MA 02142-1264, USA. Telephone: +1 (617) 234 1000. Fax: +1 (617) 234 4444.
- to draw a veil over something — If you draw a veil over something, you stop talking about it because it is too unpleasant to talk about.
- training opportunities scheme — a former government scheme offering vocational training to unemployed people
- translation look-aside buffer — (storage, architecture) (TLB) A table used in a virtual memory system, that lists the physical address page number associated with each virtual address page number. A TLB is used in conjunction with a cache whose tags are based on virtual addresses. The virtual address is presented simultaneously to the TLB and to the cache so that cache access and the virtual-to-physical address translation can proceed in parallel (the translation is done "on the side"). If the requested address is not cached then the physical address is used to locate the data in main memory. The alternative would be to place the translation table between the cache and main memory so that it will only be activated once there was a cache miss.
- transmission control protocol — (networking, protocol) (TCP) The most common transport layer protocol used on Ethernet and the Internet. It was developed by DARPA. TCP is the connection-oriented protocol built on top of Internet Protocol (IP) and is nearly always seen in the combination TCP/IP (TCP over IP). It adds reliable communication and flow-control and provides full-duplex, process-to-process connections. TCP is defined in STD 7 and RFC 793.
- trinitrophenylmethylnitramine — tetryl.
- variational graphics extended — (software) (VGX) Software developed by SDRC for use in 3D CAD solid modelling.
- virtual storage access method — (database) (VSAM) An IBM disk file storage scheme first used in S/370 and virtual storage. VSAM comprises three access methods: Keyed Sequenced Data Set (KSDS), Relative Record Data Set (RRDS), and Entry Sequenced Data Set (ESDS). Both IMS/DB and DB2 are implemented on top of VSAM and use its underlying data structures.
- women's liberation (movement) — the women's movement begun in the mid-20th cent.
- works progress administration — WPA.