1
 
 10Base-1
 
      Technical specification based on the IEEE 802.3 standard that runs
      on baseband media at 1M bps.
 
 10Base-2
 
      Technical specification that supports a 10M-bps data transmission
      rate.
 
 10Base-5
 
      Technical specification that supports a 10M-bps data transmission
      rate.
 
 10Base-F
 
      The fiber-optic cable standard currently being developed by the
      IEEE for Ethernet network environments.
 
 10Base-FB
 
      A standard for running synchronous Ethernet connections over fiber
      backbone connections.
 
 10Base-FL
 
      A standard for running asynchronous Ethernet connections over fiber
      backbone connections.
 
 10Base-T
 
      IEEE 802.3 standard for Ethernet transmission over unshielded
      twisted-pair wiring.
 
 2
 
 2780
 
      IBM remote job entry (RJE) terminal that comprises a card reader
      and printer. Some RJE terminals are still in use with older IBM
      mainframes.
 
 2B1Q
 
      2 binary bits encoded in one quaternary symbol. A coding technique
      used for communications between the U interface and the ISDN
      switch.
 
 3
 
 30xx
 
      Family of IBM mainframes that includes the relatively small 3033
      and the larger 3090.
 
 3101
 
      Original member of IBM's first series of asynchronous terminals.
      Some PCs emulate 3101 terminals to connect to IBM minicomputers.
 
 3174
 
      A member of the IBM 3270 control unit family. The 3174 supports
      IBM's Token-Ring network.
 
 3270
 
      The terminal emulation standard used to establish a PC-to- host
      connection. IBM 3270 terminal emulation is frequently employed to
      connect to SNA mainframes.
 
 3274
 
      IBM's older and more common 3270 control unit.
 
 3278/79
 
      A numerical designation that denotes the types of terminals most
      often attached to 3x74 control units. The 3278 is a monochrome
      terminal, and the 3279 is a color monitor. PCs often emulate
      3278/79 terminals to communicate with IBM mainframes.
 
 3705
 
      A numerical designation that denotes the types of IBM
      communications controllers supported by SNA. The 3705 has been
      superseded by the 37xx family.
 
 3708
 
      A protocol converter that connects ASCII terminals, such as the
      3101, to IBM hosts emulating 3270 devices.
 
 3780
 
      IBM's later generation of batch or RJE terminals.
 
 37xx
 
      IBM's family of SNA communications controllers. The 3745 supports
      up to eight high-speed T1 circuits, the 3725 is a large-scale node
      and front-end processor for a host, and the 3270 is a remote node
      that functions as a concentrator and router.
 
 4
 
 43xx
 
      A family of mid-sized IBM host computers that run the same IBM
      operating systems as 30xx mainframes.
 
 5
 
 525x
 
      The family of display terminals supported by IBM's System/36 and
      System/38. PCs attached to System/36 and System/38 systems emulate
      525x display terminals.
 
 6
 
 6502
 
      MOS's 8-bit microprocessor.
 
 68000
 
      Motorola's 32-bit internal and 16-bit external word length
      microprocessor.
 
 8
 
 800 MHz
 
      The frequency range traditionally used for cellular communication
      and specialized mobile radio (SMR) dispatch.
 
 800MHz
 
      The frequency range traditionally used for cellular communication
      and specialized mobile radio (SMR) dispatch.
 
 9
 
 900 MHz
 
      The additional frequency allocated for specialized mobile radio to
      ease the continued demand for channels.
 
 900MHz
 
      The additional frequency allocated for specialized mobile radio to
      ease the continued demand for channels.
 
 9370
 
      IBM's departmental system. The 9370 is compatibile with the 43xx
      series at the software level and supports various options for
      interconnecting devices.