- Rare photo of Lincoln at Gettysburg (archives.gov)
In 1952, the chief of the Still Photo section at the National Archives, Josephine Cobb, discovered a glass plate negative taken by Mathew Brady of the speaker’s stand at Gettysburg on the day of its dedication as a National Cemetery. Edward Everett would speak from that stand later in the afternoon for two straight hours. Moments later, a tall, gaunt Abraham Lincoln would stand up and deliver a ten sentence speech in two minutes. It was the Gettysburg Address.
- Replica of the PDP-1: PiDP-1 (hackaday.io)
Angelo and I decided to make a replica driven by a innovative type of emulator: though ported to C, it does not emulate the machine at the logic level, but on the circuit level.
- PDP-1 (Wikipedia)
The PDP-1 (Programmed Data Processor-1) is the first computer in Digital Equipment Corporation’s PDP series and was first produced in 1959. It is famous for being the most important computer in the creation of hacker culture at the Massachusetts Institute of Technology, Bolt, Beranek and Newman and elsewhere. The PDP-1 is the original hardware for playing history’s first game on a minicomputer, Steve Russell’s Spacewar!