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- WHATPORT.COM
-
- Version 2.0
- October 24, 1989
-
- For detecting installed serial ports and type of mouse
-
- Copyright 1989, Life Sciences Editorial Services
- 1236 River Bay Road
- Annapolis, Maryland 21401
-
-
- AUTHOR: Peter Petrakis
-
-
- IMPROVEMENTS IN THIS VERSION:
-
- Version 2 of WHATPORT.COM provides a more graphic display
- of installed COM ports and their associated interrupt request
- (IRQ) lines. In addition, unlike the original version, it displays
- the IRQ line being used by any installed mouse (except PS/2), not
- just a serial mouse, thus increasing the usefulness of the program
- for avoiding IRQ line conflicts.
-
-
- DESCRIPTION:
-
- This program detects what serial ports are installed in an MS/DOS
- or PC/DOS system. The type of mouse, if installed, is also shown
- (serial, bus, InPort, HP) together with the interrupt request (IRQ)
- line it's using. If it's a serial port mouse, the program indicates
- whether it's on the IRQ line for COM1/COM3 or the IRQ line
- for COM2/COM4, to guide a user in selecting an available COM
- port for other devices when more than two serial ports are
- installed. Because PCs have only two IRQ lines for serial
- communications, COM3 must share COM1's IRQ line and COM4
- must share COM2's IRQ line. Unfortunately, two devices using
- the same IRQ line can't be active at the same time. COM3 can't
- be used for a printer or modem if a serial mouse is active on
- COM1, for example. Likewise, COM4 can't be used if a serial
- mouse is active on COM2. The following table shows what ports
- are available for other devices when a serial port mouse is present
- on a multiple-port system:
-
- Serial port mouse on COM ports available for other devices
- -------------------- -------------------------------------
- COM1 or COM3 (IRQ 4) COM2 or COM4
- COM2 or COM4 (IRQ 3) COM1 or COM3
-
-
-
- HOW TO USE THE PROGRAM: Just run it.
-
-
- DISTRIBUTION:
-
- WHATPORT.COM and this document are provided free by Life
- Sciences Editorial Services, Annapolis, Maryland. They may be
- copied and distributed promiscuously provided no money is
- charged for them, they are not modified, and they are not
- separated. Although the program has been extensively tested,
- Peter Petrakis makes no warranty concerning its usefulness on all
- systems and he accepts no responsibility or liability for any mishap
- resulting from its use.