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Top Forums UNIX for Dummies Questions & Answers Does DOS has a terminal or pseudo terminal? Post 302562186 by vistastar on Thursday 6th of October 2011 09:13:17 AM
Old 10-06-2011
Does DOS has a terminal or pseudo terminal?

I am wondering if the DOS console works like the unix terminal?
Test Your Knowledge in Computers #749
Difficulty: Medium
The ZX81 had a base configuration of 1 KB of on-board memory that could officially be expanded externally to 64 KB.
True or False?

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dc(4)							     Kernel Interfaces Manual							     dc(4)

       dc - serial line/mouse/keyboard

       device	 dc0  at ibus?	vector dcintr

       The  serial line controller provides four ports, with modem control on two of the ports.  The DECstation 3100 and DECstation 2100 only pro-
       vide partial modem control.  The DECstation 5000 provides full modem control. The ports are used as follows:

       Port	 Usage
       0	 Graphics device keyboard at 4800 BPS
       1	 Mouse or tablet at 4800 BPS
       2	 Communications port 1 (w/modem control)/local terminal
       3	 Communications port 2 (w/modem control)/local terminal

       Each communication port from the serial line controller behaves as described in and can be set to run at any of 16 speeds.  For the  encod-
       ing, see

       When  a	graphics device is not being used as the system console, communications port 2 becomes the system console.  In this configuration,
       the port can only be used at 9600 BPS and no modem control is supported.

       The serial line driver operates in interrupt-per-character mode (all pending characters are flushed from the silo on each interrupt).

       Speed must be set to 9600 BPS on the console port and 4800 BPS on ports used by graphics devices.  The serial  line  driver  enforces  this
       restriction; that is, changing speeds with the command may not always work on these ports.

       console terminal

       local terminal

       local terminal

See Also
       console(4), devio(4), tty(4), ttys(5), MAKEDEV(8)

								       RISC								     dc(4)

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