hi, i ran tty and get this /dev/pts/1?
what does /dev/pts/1 indicates about my terminal and the device files? thanks
That is your terminal device (psuedo terminal 1).
The purpose of "tty" is to echo you the name of the terminal you're currently logged on to. Yours happens to be /dev/pts/1
is there any difference between terminal device and psuedo terminal ? thanks
A terminal device is a dummy terminal. Just a monitor and a keyboard connected directly to the unix machine through a serial port. It does nothing except provide a way for you to work directly on the unix machine.
A pseudo terminal device is a program, such as telnet, which fools unix programs into thinking you are sitting at a dummy terminal connected through a serial port. In reality, you're using Windows and a program which emulates a terminal window inside of Windows.
It has to do with the internal workings of unix and is more of a concern for programmers when they're making programs like telnet...