CTY

from The Free On-line Dictionary of Computing (8 July 2008)

CTY

   /sit'ee/ or /C-T-Y/ [MIT] The terminal physically associated
   with a computer's system {console}.  The term is a contraction
   of "Console {tty}", that is, "Console TeleTYpe".  This {ITS}-
   and {TOPS-10}-associated term has become less common, as most
   Unix hackers simply refer to the CTY as "the console".

   [{Jargon File}]