Interesting S100 boards

I just discovered some *VERY* interesting S100 boards that I didn't realize I had in my box 'o S-100 boards. They seem to be some kind of Atari development/prototyping system. The boards are: 65xx Emulator, part no. 100-015-2, (c) 1983 Atari [this is the PCB only] Trace Memory Interface, part no, 100-003-2, (c) 1983 Atari 6502 Processor, part no. 100-003-2, has a 6502 and some other stuff, such as a clock speed DIP switch (1, 2, 4 MHZ settings), some RAM, a couple ribbon cable connectors. I have 2 of these boards but one is incomplete (does not have all the chips the other one does). All have the Atari name and logo and a copyright date of 1983. Also have these: the Encryptor, Jones Futura Corporation, Model ENC 100-1 California Computer Systems, Model 2832 [has this big, black 3"x3" square and 3/8" thick block of resin on it, have no idea what it's hiding] Any idea what this stuff is? Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass