On 10/02/2013 09:36 AM, Jerome H. Fine wrote: Another MACRO project was to add additional variants to the nine KED variants that DEC supports for RT-11 and RSTS/E. DEC supports the VT100, the VT52 and the VT62. I added the VT420 which supports more than 24 lines as I mentioned in my last post. Having a "terminal" with 44 lines was a huge advantage when I started to enhance SDHX.SYS, as I find when I type this post under Netscape and have about 36 lines in additional to all the tool bars. What I'm curious about is why EDT never appeared under RT-11. (or did it?) KED is respectable, but EDT is pure heaven. -Dave -- Dave McGuire, AK4HZ New Kensington, PA