rarest computers. was: RE: Xerox Alto Restoration + Emulation

Here's my rarest: Tektronix 4132, running UTEK (A Tek-haved 4.2bsd variant). A National 16032-based machine, with 4MB of RAM, dual RS-232, CDC 320MB SCSI 5 1/4" HD, GPIB, built-in 10Mb Ethernet (AUI), QIC-24 tape drive. Have quite a number of expansion boards, including additional RAM, RS232, SCSI, and parallel printer interfaces. The network stack in these machines is pretty broken...it doesn't know about subnetting other than basic class A/B/C, and it forces broadcast to the zero address rather than the now-standard ones address. Probably not too many of these machines around anymore that are running. I also have a Tek 6130 that I believe will still run. Same architecture as the 4132, but earlier. It has ST-506 disk interface rather than SCSI. Don't have a decent ST-506 drive for it. Usually ran with Maxtor 1140's, which are pretty tough to find nowadays. Built-in 5 1/4" DSDD floppy drive (versus SCSI QIC-24 drive on the 4132). One of these days, once I get my house built and I have a real shop to work in (probably not until early 2005), I'll have to drag these beasts out and bring 'em online. Rick Bensene The Old Calculator Web Museum http://oldcalculatormuseum.com