I bet you these guys could tell you what you have. I have sold two old computers on that site in the past month. Bunch of electronic vintage loving nerds I tell ya
http://www.vintage-computer.com/vcforum/forum.php
If I had to guess the primary chip is probably the one with the sticker on it in picture 4. And if it is a 8088 or 8080 or one of those processor it can also be worth some $$. Not to overload you but there is an even greater abundance of vintage loving CPU (nerds) collectors on the link below. I have sold of few of my chips there. I had one in my scrap pile that was apparently rare. I got $130 for it.
http://www.cpu-world.com/forum/
Only problem is now every time I get a super old machine I have to spend time doing research when I would rather be adding to my pile.
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