(n.) See zero wait state.

(n.) An Ethernet standard for baseband LANs (local area networks) using fiber optic cable carrying 100 Mbps (megabits per second). Also called: Fast Ethernet. See also Ethernet (definition 1).

(n.) An Ethernet standard for baseband LANs (local area networks) using twisted-pair cable carrying 100 Mbps (megabits per second). The 100Base-T standard is comprised of 100Base-T4 (four pairs of medium-grade to high-grade twisted-pair cable) and 100Base-TX (two pairs of high-grade twisted-pair cable). Also called: Fast Ethernet. See also Ethernet (definition 1).

(n.) See 100Base-T.

(n.) See 100Base-T.

(n.) An Ethernet standard for baseband LANs (local area networks) using voice-grade twisted-pair cable carrying 100 Mbps (megabits per second). Unlike other Ethernet networks, 100Base-VG relies on an access method called demand priority, in which nodes send requests to hubs, which in turn give permission to transmit based on the priority levels included with the requests. Also called: 100Base-VG-AnyLAN. See also Ethernet (definition 1).

(n.) See 100Base-VG.

(n.) Descriptor used for any of three forms of 100 Mbps Ethernet networks: 100Base-T4, 100Base-TX, or 100Base-FX. Also called: Fast Ethernet. See also 100Base-T, 100Base-FX, Ethernet (definition 1).

(n.) A computer keyboard modeled after the enhanced keyboard; introduced by IBM for the IBM PC/AT. The 101-key keyboard and the enhanced key- board are similar in the number and function of their keys; they may differ in the way the keys are laid out, the amount of tactile feedback expressed when a key is pressed, and the shape and feel of the keycaps. See also enhanced keyboard.

(n.) A standard super VGA computer display having a resolution of 1024 columns of pixels by 768 rows of pixels. See also SVGA.

(n.) The Ethernet standard for baseband LANs (local area networks) using fiber-optic cable carrying 10 Mbps (megabits per second) in a star topology. All nodes are connected to a repeater or to a central concentrator. A node is equipped with a fiber-optic transceiver that plugs into an AUI connector on the adapter card and attaches to the cable with an ST or SMA fiber-optic connector. The 10Base-F standard comprises 10Base-FB for a backbone, 10Base-FL for the link between the central concentrator and a station, and 10Base-FP for a star network. See also Ethernet (definition 1), fiber optics, star network.

(n.) See 10Base-F.

(n.) See 10Base-F.

(n.) See 10Base-F.

(n.) The Ethernet standard for baseband LANs (local area networks) using twisted-pair cable carrying 10 Mbps (megabits per second) in a star topology. All nodes are connected to a central hub known as a multiport repeater. See also Ethernet (definition 1), star network, twisted-pair cable.

(n.) The Ethernet and IEEE 802.3 standard for baseband LANs (local area networks) using a thin coaxial cable (3/16 inch) up to 200 meters long and carrying 10 Mbps (megabits per second) in a bus topology. A network node is connected to the cable by a BNC connector on the adapter card. Also called: Cheapernet, thin Ethernet, ThinNet, ThinWire. See also BNC connector, bus net- work, coaxial cable, Ethernet (definition 1), IEEE 802.x.

(n.) The Ethernet and IEEE 802.3 standard for baseband LANs (local area networks) using a thick coaxial cable (3/8 inch) up to 500 meters long and carrying 10 Mbps (megabits per second) in a bus topology. A network node is equipped with a transceiver that plugs into a 15-pin AUI connector on the adapter card and taps into the cable. This form of Ethernet is generally used for network back- bones. Also called: thick Ethernet, ThickNet, ThickWire. See also coaxial cable, Ethernet (definition 1), IEEE 802.x.

(n.) A clock that expresses the time within a 12-hour range, returning to 1:00 after 12:59 AM or PM. Compare 24-hour clock. 1.2M adj. Short for 1.2-megabyte. Refers to the storage capacity for high-density 5.25-inch floppy disks.

(adj.) See 8-bit, 16-bit, 32-bit, 64-bit. # 16-bit application 28.8

(n.) An application written to run on a computer with a 16-bit architecture or operating system, such as MS-DOS or Windows 3.x.

(adj.) Of, pertaining to, or characteristic of a display that can produce 216 (65,536) distinct colors. Com- pare 24-bit color, 32-bit color.

(n.) A computer that works with data in groups of 16 bits at a time. A computer may be considered a 16-bit machine either because its microprocessor oper- ates internally on 16-bit words or because its data bus can transfer 16 bits at a time. The IBM PC/AT and similar models based on the Intel 80286 microprocessor are 16-bit machines in terms of both the word size of the micropro- cessor and the size of the data bus. The Apple Macintosh Plus and Macintosh SE use a microprocessor with a 32-bit word length (the Motorola 68000), but they have 16-bit data buses and are generally considered 16-bit machines.

(n.) An operating system, now outdated, that can work with 2 bytes, or 16 bits, of infor- mation at one time. A 16-bit operating system, such as MS-DOS and Microsoft Windows 3.x, reflects the func- tionality of a 16-bit processor because the software and the chip must work together so closely. The main advan- tage of a 16-bit operating system over its earlier 8-bit pre- decessors (such as CP/M-80) was its ability to address more memory and use a larger (16-bit) bus. Sixteen-bit operating systems have since been eclipsed by 32-bit oper- ating systems—such as the Macintosh operating system, Microsoft Windows NT, and Windows 9x—and by 64-bit operating systems, such as some versions of UNIX. See also 32-bit operating system. /16 network n. IP address class B. This class has 16,382 networks available and more than sixty-five thousand hosts available. See also host, IP address classes, network.

(n.) 1. A variation on the Year 2000 prob- lem in computer systems that have two-digit years in date fields and are used by companies and organizations in which the fiscal year 2000 begins before the end of calen- dar year 1999. These computer systems may interpret the fiscal year as the year 1900. 2. A potential problem, if not corrected, with date fields in older code that were (some- times) used to hold values with special meaning. For example, the date 9/9/99 was often used as an expiration date meaning “keep this information forever” or, worse, “destroy this document immediately.”

(n.) Short for first normal form. See normal form (def- inition 1).