VAX 780 on eBay

Nigel Johnson Ham g4ajq1 at
Sun Jan 2 19:20:11 CST 2022

I've always felt that in terms of performance the proper measure would 
have been VUPS/kW :-)

That way my little MicroVAX 2 would be able to hold its head high!

Amateur Radio, the origin of the open-source concept!
Skype:  TILBURY2591nw.johnson at

On 2022-01-02 20:18, Zane Healy via cctalk wrote:
>> On Jan 2, 2022, at 5:11 PM, Grant Taylor via cctalk<cctalk at>  wrote:
>> On 1/2/22 5:20 PM, Chris Zach via cctalk wrote:
>>> I keep thinking about it, but no. The 780 was neat from a historical perspective, and the 785 at UMBC (UMBC5) ran Ultrix (and was on the ARPANET, not the crappy Bitnet the 8600's were on)
>> Is that Bitnet as in the Because it was there network that many IBM mainframes were on?
>>> but the 780 was really slow. I have a Microvax II here that would equal it CPU speed-wise, and the running of the main memory on the SBI was cool for the 782 option but was pretty slow.
>> Can I ask for a rough translation in to comparative VAX Units of Performance (VUPs)?  I /think/ that the VAX 11/780 was 1 VUP.
> VAX-11/780 = 1 VUP
> VAX-11/782 = 1.8 VUP
> MicroVAX 1 = 0.3 VUP
> MicroVAX 2 = 0.7 VUP
> Zane

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