On Apr 5, 2010, at 4:58 59PM, Barry Shein wrote: > > On April 5, 2010 at 13:51 s...@cs.columbia.edu (Steven Bellovin) wrote: >> >> Yup. 10 years earlier, a 3Com Ethernet card for a Vax cost about $1500, if >> memory serves. > > Early-mid 80s? I'd say at least twice that, I don't think there were > too many cards for Vaxes and similar for less than $5K.
It could have been $3K, but I don't think it was higher. > > An NIU20 for DECSYSTEM-20 was a 3U box, it was just a single ethernet > interface, and cost around $15-20K. > > About the same price for an IBM370 (specifically, 3090) ethernet box > which included a PC/AT and sat on a box about the size of a dorm cube > refrigerator which, if you opened it up, contained a chunk of Unibus > backplane in which was a (I think 3COM?) ethernet board (and power > supply etc.), some common Vax ethernet card. Weird, the whole thing > was basically a kludged together Unibus to bus/tag channel adapter or > maybe even 3274 using something like an IRMA board? I knew it well > because it crashed a lot and operations decided I was the only one who > had the magic voodoo to bring it back to life which as I remember was > to POWER-CYCLE IT! Well, sometimes you had to power-cycle it more than > once to get it all to synch. I remember the design, but never used it. > > And we had to put coins in those boxes to get our packets through! If > you wanted an email it cost a dime, FTP was 75cents for the first > 100KB and 10c for each KB thereafter...ok, that may not be entirely > accurate. > Of course not -- you forgot about the credit card reader option. --Steve Bellovin, http://www.cs.columbia.edu/~smb