ND-Butterfly workstation

ND-Butterfly is an Ericsson PC with a ND-110 CPU inside, plugged into an ISA slot.

ND-Butterfly logotype.

BUTTERFLY-110 (also called OWS-110) is a complete system, comprising a version of the ND-110CX computer (called the ND-110PCX), fitted into the enclosure of an IBM-compatible PC-AT computer. Information in Butterfly-110 is freely interchangeable between the PC and ND operating systems, i.e. data created under the PC system may then be used by the ND system and vice versa. a centronics parallel printer port is available as standard. Options include a 4-port serial communications controller, which may be used to connect ND-compatible terminals to the ND-110PCX part of the workstation, making a Butterfly Teamstation environment.

Options

Communications Controller board

The InterQuadram Communications Controller board (QuadPort-AT) extends the Butterfly-110 with up to four more terminals. The card itself has one serial port and one parallel port on it. A four-port serial connection box is connected via a cable to this board, providing four more serial ports. The ports are used as follows:

• Serial port 1 (native to the PC) is the "COM1" port in DOS. It is taken away from DOS by the Butterfly software which runs on the PC, and used for ND's COSMOS asynchronous communication facility.
• Serial port 2 (on the QuadPort-AT board) is redirected by the Butterfly software to "COM2" in DOS.
• Parallel port 1 (native to the PC) is the "LPT1" port in DOS. The print-spooling software shares this port between the PC's DOS and ND's SINTRAN operating systems.
• Parallel port 2 (on the QuadPort-AT board) is the "LPT2" port in DOS. It can only be used by DOS.
• serial ports on connection box. Any serial device supported by the software running on the ND-110PCX may be connected to these ports - ND-compatible terminals, or serial printer.