RCS/RI

The Retro-Computing Society of RI - preserving and restoring historic computers since 1994.

[RCS/RI @RetroCompSocRI]

Our public open house is the 3rd Saturday of each month from 1 to 8 pm.

[RCS/RI @RetroCompSocRI]

@agreen Yes, we're here until 8 pm

[RCS/RI @RetroCompSocRI]

Our next open house is Sat. Dec. 16th from 1 to 8 pm. We'll be calibrating our Tentelometer®

[RCS/RI @RetroCompSocRI]

Our next open hous is Sat. Oct. 21st from 1 to 8 pm. We'll be featuring history of radio for #hamradio guests from W1OP. Pictured is a water cooled vacuum tube from WWII era radar.

[RCS/RI @RetroCompSocRI]

@paulmckrcu Small world. The tape has McKenney on the label. We got it, and the 12, from U Rochester CVS. Ping us if you are ever in town.

[RCS/RI @RetroCompSocRI]

We're running the pdp-12 at today's open house.

[RCS/RI @RetroCompSocRI]

Oops, that was a typo. Actually 1 kwh per 60 kb, so 1 kw minute per kb.

[RCS/RI @RetroCompSocRI]

We have 3 versions of Skylark, the 12 port of Spacewar, on DECtape. Each source file is 60 kb. Three hours later they are copied to our laptop. 300 baud is painfully slow... Transfer is 1 kwh per kb for the record.

[RCS/RI @RetroCompSocRI]

@Bit111111 @BinaryDinosaurs Where did you get this? We need to add this to the tool box next to the wire wrap tool.

[RCS/RI @RetroCompSocRI]

We're playing Spacewar!

[RCS/RI @RetroCompSocRI]

Our next open house is Sat. Apr. 16 from 1 to 8 pm

[RCS/RI @RetroCompSocRI]

OpenStep demo apps

[RCS/RI @RetroCompSocRI]

Here's the high res color OpenStep screenshot with demo apps.

[RCS/RI @RetroCompSocRI]

We just installed OpenStep in a Virtual Box. This is the low res monochrome mode.

[RCS/RI @RetroCompSocRI]

An article about the increasing popularity of collecting PCs.
https://t.co/G5luBGMxp0

[RCS/RI @RetroCompSocRI]

Our public open house events are cancelled until further notice. We've had two positive cases in the building during the last couple of weeks. It is doubtful that we'll resume this year.

[RCS/RI @RetroCompSocRI]

Our public open house Saturday Nov. 21 is cancelled due to a local increase in covid rates. We're not sure about Dec. but expect that it will be by appointment only. No walk-in visitors.

[RCS/RI @RetroCompSocRI]

@W9GYR correction: this photo was taken during the removal of NPR bus grant continuity jumpers to reconfigure the Unibus. The memory mod was done during an earlier work session.

[RCS/RI @RetroCompSocRI]

brain surgery: our member @W9GYR installs wire-wrap on the backplane of a 1980 DEC VAX-11/750 to expand physical address space from 8 MB to 14 MB. A board swap plus these jumpers to get it all working. Photo by Dave Fischer.