27-letter words containing a, c, u, s, l
- protestant episcopal church — Episcopal Church in America.
- public broadcasting service — a network of independent, noncommercial television stations that operate with public and government funding instead of with revenues from advertising. Abbreviation: PBS.
- public service broadcasting — publicly-funded broadcasting
- public works administration — the U.S. federal agency (1933–44) that instituted and administered projects for the construction of public works. Abbreviation: PWA, P.W.A.
- publius-licinius-valerianus — (Publius Licinius Valerianus) died a.d. c260, Roman emperor 253–60.
- respiratory syncytial virus — a myxovirus causing infections of the nose and throat, esp in young children. It is thought to be involved in some cot deaths
- rough endoplasmic reticulum — a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.
- rufus daniel isaacs reading — Rufus Daniel Isaacs, 1st Marquis of, 1860–1935, Lord Chief Justice of England 1913–21; viceroy of India 1921–26.
- sea-launched cruise missile — a cruise missile launched by surface ships or submarines against land or sea targets and equipped with nuclear or conventional warheads, with a range of 2210 miles (3556 km). Abbreviation: SLCM, S.L.C.M.
- second-class honours degree — an honours degree of the second class, usually further divided into an upper and lower designation
- senile macular degeneration — a type of macular degeneration that is one of the leading causes of blindness in the elderly and in which tiny blood vessels grow into the macula of the retina, obscuring vision. Abbreviation: SMD.
- serial storage architecture — (storage) (SSA) IBM's proposed ANSI standard for a standard high-speed interface to disk clusters and arrays. SSA allows full-duplex packet multiplexed serial data transfers at rates of 20Mb/sec in each direction. According to John Taylor, programme manager at IBM's Storage Division at Havant, SSA will be used in arrays of discs working with high-end computers ranging from mainframes down to LAN servers. Taylor said that SSA differs from the IEEE proposed P1394 serial interface specification in its ability to offer simultaneous multiplexed transfers from more than one disk or array. IBM also supports the P1394 standard which will be used primarily by desktop PCs for multimedia applications. SSA has received backing from a number of companies including connector makers Molex, ITT Cannon and AMP, disk drive makers Conner and Western Digital and RAID array suppliers like Dynatech and NCR. IBM expects to see the first SSA products released at Comdex in Autumn 1994 but it will be 1995 before the products ship in volume. Under an agreement signed with ASIC maker and ARM licencee VLSI Technology, IBM will use ARM-based chips made by VLSI to implement the SSA interface and VLSI will make these cores available to third parties as one of its Functional System Blocks.
- synchronous optical network — (networking) (SONET) A broadband networking standard based on point-to-point optical fibre networks. SONET will provide a high-bandwidth "pipe" to support ATM-based services. The SONET standard will establish a digital hierarchical network with a consistent worldwide transport scheme. SONET has been designed to take advantage of fibre, in contrast to the plain old telephone system which was designed for copper wires. SONET carries circuit-switched data in frames at speeds in multiples of 51.84 megabits per second (Mbps) up to 48 * 51.84 Mbps = 2.488 gigabits per second. Since SONET uses multiple channels to transmit data, each SONET frame can be considered to be a two-dimensional table of bytes that is 9 rows high and 90 columns deep. For every OC-n level, SONET can transmit n number of frames at a given time. Groups of frames are called superframes. SONET is the American version of SDH.
- united states naval academy — an institution founded in 1845 at Annapolis, Maryland, for the training of U.S. naval officers.
- universal computer protocol — (communications, protocol) An earlier form of External Machine Interface (EMI).
- universal naming convention — (networking) (UNC) The type of file system path used in Microsoft Windows networking to completely specify a directory on a file server. The basic format is: \\servername\sharename where "servername" is the hostname or IP address of a network file server, and "sharename" is the name of a shared directory on the server. This is related to the conventional MS-DOS "C:\windows" style of directory name. E.g. \\server1\dave might be set up to point to C:\users\homedirs\dave on a server called "server1". It is possible to execute a program using this convention without having to specifically link a drive, by running: \\server\share\directory\program.exe The undocumented DOS command, TRUENAME can be used to find out the UNC name of a file or directory on a network drive. Even Microsoft don't know whether UNC stands for "Universal Naming Convention" or "Uniform Naming Convention", both appear on their website, sometimes withing the same document, but with a preference for "Universal".
- xml user-interface language — (language) (XUL) An XML-based language created for the Mozilla browser for development of cross-platform user interfaces. XUL supports input controls such as textboxes and checkboxes, toolbars, menus, dialogs, trees, keyboard shortcuts, and more.