In doing a bit of inquiry as to the desireability of the various surplus UYK40 and 44 computers, I found that the K-40s are all being replaced as fast as possible by the current UYQ-70 system, made by Lockheed Martin in Minnesota. You can check out this system at: www.q70.com quite a fascinating look at what the next generation's collectible surplus looks like today. Cheers John