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Date: Mon, 01 Sep 1997 14:30:02 +0000
From: Wang Huaibo <bu-fl@cs.sjtu.edu.cn>
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Dear Sir/Miss,
	I wonder what's the difference between /dev/ptyXX and /dev/ttyXX
( appears in telnetd source file "sys_term.c" )and whether there is
Electronic version of books about Unix design and implementation 
downoladable from the net.

	Thanks
	Regards

	Wang Huaibo