SYSTAT By Kelly Roach. This simple package redefines Interlisp's function CONTROL-T so that you get a graphic display instead of the usual printed status line when you type character <CONTROL-T>. The SYSTAT package puts up SYSTAT.WINDOW indicating USERNAME, TTY.PROCESS, STATE, STACK FRAME, %UTIL, % GC, % KEYBOARD, % SWAP, number of OPEN FILES, MAIN DATA SPACE used, and ARRAY SPACE used. SYSTAT.WINDOW may also be usefully buttoned with your mouse. Buttoning with LEFTBUTTON causes an immediate update of SYSTAT.WINDOW. A popup menu is available with MIDDLEBUTTON allowing you to enter Quickly and Slowly update modes, immediate Update, Deactivate the SYSTAT.WINDOW, and Reactivate the SYSTAT.WINDOW. The ordinairy window menu is available with RIGHTBUTTON. Closing the SYSTAT.WINDOW causes SYSTAT to deactivate until your next <CONTROL-T> which will reactivate SYSTAT, opening SYSTAT.WINDOW.