Quill Pen
Tue, 2010-03-30 18:14 — walkerDonor: John David Stone
For centuries, quill pens represented the finest of writing implements. This re-creation comes from London's historic St. Paul's Cathedral, designed by Sir Christopher Wren.
Rainbow Product Guide December 1985
Sat, 2010-02-27 23:48 — oneillaDonor: Anonymous
This booklet is the product guide for the items produced by the Rainbow Company, including both the hardware and software options. The booklet also gives instructions on how to order the items, what operating systems they are compatible with, and…
Raytheon Core Memory
Mon, 2010-02-08 18:49 — walkerDonor: Steve Cunningham
Known as magnetic core memory. Magnetic core memory is an early form of RAM (random access memory).
This particular board was produced by Raytheon in…
Rolls Record-6 Pocket Adding and Subtracting Machine
Sun, 2010-02-07 16:31 — walkerDonor: Anonymous
A pocket adding and subtracting machine that was manufactured and sold during the 1960s. The machine was made in Western Germany.
Calculations are made by shifting around the lines of numbers below were the actual digit is with the…
ROM from an Apple II
Mon, 2010-02-08 18:42 — walkerDonor: Steve Cunningham
a set of four ROM for the Apple II computer; ROM (read only memory) contains permanent instructions for the computer
