Tag Archives: technology

My iPhone 6s’ battery has been losing efficacy over time, and its processor has been performance-throttled for the past two months. So, I’m sending it to Apple for a battery replacement. I opted for the mail-in procedure because I’m lazy.

I’ll be without my phone for “five to nine business days,” which sounds like two weeks to me. I haven’t been without a mobile phone since 1995! (My first phone was an analog Motorola microTAC.)


Here’s a complete printset of the Venus Ibox, from 1984. It includes Ibox block diagrams, module and MCA block diagrams, and schematics for the MCAs and modules.

I’d bet my bottom dollar that there were ECOs after this version. But this hardware ran VAX/VMS and oodles of software.

Most of the page tops are faded. 75% of it is due to fading in the originals, and 25% is due to less-than-meticulous copying by FedEx.

Venus Ibox 1984-08-18

In a comment on my Thoughts on DEC post, Tom Miller offered a rat’s ass if I scanned in my VAX 8600 (Venus) Ibox microcode listing.

Well, here’s Venus Ibox microcode v3.73, generated on 7-May-1984. Tom, you owe me one rat’s patootie.

This ran on Venus through the end of 1984. I had transferred to Alan Kotok‘s Simplified Architecture for Fast Execution (SAFE) project, where I was looking into VAX-11 emulation. Large VAX Engineering’s senior management called an “all hands on deck” emergency, and everyone needed do whatever they could to help Venus ship on time.  So, I informally returned to work on Venus and ran one of the lab debug shifts. It was equally exhilarating and stressful… An, “I wouldn’t trade those memories for anything in the world,” and, “I hope I never go through something like that again,” experience.

This version ran VMS and oodles of VAX programs.  I don’t know if there was a later version; if so, I never heard about it.

BTW, here’s a nice paper about why DEC went down the tubes.