29-letter words containing a, n, c, o, l, u
- suppressed carrier modulation — an amplitude-modulated wave in which only the sidebands are transmitted, the carrier being removed
- symbolic automatic integrator — (mathematics, tool) (SAINT) A symbolic mathematics program written in Lisp by J. Slagle at MIT in 1961.
- synchronous data link control — (communications) (SDLC) An IBM protocol. A discipline conforming to subsets of the ADCCP of ANSI and the HDLC of the International Organization for Standardization. SDLC manages synchronous, code-transparent, bit-serial communication which can be duplex or half-duplex; switched or non-switched; point-to-point, multipoint, or loop. Compare Binary Synchronous Communication.
- 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.
- the royal ulster constabulary — (formerly) the police force in Northern Ireland from 1922 to 2001, superseded by the Police Service of Northern Ireland
- to laugh someone out of court — If you laugh someone out of court, you say that their opinions or ideas are so ridiculous that they are not worth considering.
- universal resource identifier — (web) (URI, originally "UDI" in some WWW documents) The generic set of all names and addresses which are short strings which refer to objects (typically on the Internet). The most common kinds of URI are URLs and relative URLs. URIs are defined in RFC 1630.
- until one is blue in the face — to the utmost degree; indefinitely
- visual basic for applications — (programming) (VBA) Microsoft's common language for manipulating components of its Microsoft Office suite. It is used as the macro language for these applications and is the primary means of customising and extending them. A VBA program operates on objects representing the application and the entities it manipulates, e.g. a spreadsheet or a range of cells in Microsoft Excel.
- you can't hear yourself think — If you say that you can't hear yourself think, you are complaining and emphasizing that there is a lot of noise, and that it is disturbing you or preventing you from doing something.