Hello, all: I've reached a major milestone in this project. The telnet console emulation code works, courtesy of my telnet guru Theo Pozzi. Right now, I'm using a small 8080 echo program (written by Theo) to read a character from telnet and echo it back out. Terminal output proves that it works. Whoo, hoo! Now, I'm going to work on getting Altair 4k BASIC running. I might have to do some tinkering to get the LOAD and SAVE functions working properly, but that should be a snap. Now the fun begins. I'll post the new code shortly. Rich