Xerox Paris, a document system Support & Software User Guide

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Job Definitions
The PARI
S Spooler32 Technical Manual
61
Identifying the UART chip in your PC
The Microsoft Diagnostic utility (MSD) supplied with MS-DOS will easily
allow you to identify the various components of your PC, including the UART
chip.
MSD is run from the DOS prompt simply by typing MSD. The option for
COM ports will display all details including which UART chip is being used.
If you find that you have an older 8250 or 16450 UART, you should check
with your PC dealer about upgrading your I/O board to one with a 16550A
UART.
The information on the following pages is for the Cybercom.drv high speed
(16550AF) Windows serial port driver from Cybersoft Corp.  This driver
allows Windows to take full advantage of the 16550 UART chip.