Abstract: An arrangement providing optical internetwork to Wide Area Networks (WAN), Metropolitan Area Networks (MAN), and/or Local Area Networks (LAN) as a peripheral device using modular components. WANs can be defined to include wireless, SONET/SDH, or DWDM networks for long haul applications. MANs can be defined to include wireless, Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH), or Wavelength Division Multiplexing (WDM) networks for Metro applications. The exemplary apparatus comprises of a printed circuit board (PCB) with a Small Computer System Interface (SCSI) connector, which provides the interface to a WEB, DataBase (DB), General-Purpose (GP) server, workstation, or PC. The SCSI Optical Device (SOD) provides gateway functionality to WAN, MAN, or LAN. SOD's processing is accomplished by one, two, or four processors depending on the OC rate of the optical (fiber) connection. Buffering of data is done by RAM memory located on the circuit board.

Abstract: A source code monitor and method is provided having an interface for monitoring the execution of a source coded computer program by a processor. The monitor provides for nonintrusively detecting the actions taken by the processor while executing the source coded program, and determining during execution of the source program by the processor if there is a match between the actions as detected and an associated part of the source code. A display is provided for an indication of the actions performed and, if there is a match, an indication of the associated part of the source code. If there is not a match, an indication that there is not a match is provided. The interface circuit monitors signals on the target processor address bus, data bus and control bus.

Abstract: An arrangement providing an internetwork identification in response to a broadcast message from a LAN client wherein the broadcast message comprises the LAN client's LAN address. The exemplary apparatus comprises a receiver for receiving a message from the LAN and a translator coupled to the receiver for providing a translation of the LAN address to an internetwork identification responsive to determining that the received message is a broadcast message request for internetwork identification. The translator comprises a first device for determining that the received message comprises a broadcast message request for an internetwork identification and a second device coupled to the first device and responsive thereto for receiving the LAN address and providing the internetwork identification. The second device may comprise a disk system or other writable, nonvolatile electronic device.