NOTE As you work with utilities at the command prompt, you??™ll find that different utilities support
different numbers of ports. Most utilities support at least LPT1: through LPT3:, but you??™ll
find a few that support up to LPT9:. Support for the COM (serial) ports is even more diverse. A few
utilities only support COM1: through COM3:. More common is support for COM1: through
COM4: for utilities. However, you??™ll find a few that support up to COM9: and a few that support
as many COM ports as your machine has installed. One device is a constant: every workstation
supports the CON: (console) device.
BAUD=b Determines the transmission rate of the COM port in bits per second (bps). Note that
bps isn??™t always equivalent to baud; see the definition at http://webopedia.internet.com/
TERM/B/baud.html for details. Table 5.2 shows numbers you must use to specify a desired rate.
STARTING THE COMMAND INTERPRETER 119
PARITY=p Determines how the system checks for transmission errors. The mode command
supports the values shown in Table 5.3.
DATA=d Specifies the number of data bits per character. You may use any value between 5 and
8. The default setting of 7 provides support for standard ASCII characters.
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