When using the standard TELNET program to login to a remote host, such as an IBM mainframe, from a local workstation, the graphics capabilities of the workstation are normally lost. TELNETG is a modified version of TELNET which overcomes this deficiency for HIGZ applications such as PAW or GEANT in a rather elegant manner. Not only is the user able to display graphical output from the remote session in a window on the local station, the mouse may also be used to provide input. More importantly, the HIGZ macro primitives are very compact, resulting in a significant reduction in network traffic (and corresponding increase in performance). Factors of 10 improvement are typical for one dimensional histograms, rising to 100 or more for two dimensional histograms, surfaces, LEGO plots etc.) The only change that the user must make (apart from typing TELNETG instead of TELNET, is to specify the negative value of the workstation type in the remote application. Thus, when using TELNETG from an Apollo DN3000 to run PAW on CERNVM, the workstation type -10002 should be used.
TAG++ is a terminal emulator that provides full-screen access to IBM VM systems. The version included in CSPACK has been enhanced to provide the same kind of graphics support as in TELNETG. As with TELNETG, HIGZ applications, such as PAW, may display graphical output in a local window and receive graphical input, e.g. using the mouse.