Hacking on the PDP1 Raspberry Pi Emulator - Computerphile
Computerphile
May 6, 2026
The PDP-1 marked a pivotal shift from batch-processed mainframes to interactive, personal computing. By prioritizing direct user control and real-time feedback, these machines laid the architectural foundations for modern systems, including the development of Unix and early symbolic AI, despite the limitations of word-addressed memory and lack of byte-level standards.
Key insight: Marvin Minsky discovered that by linking X and Y coordinates through approximate trigonometry, he could create stable, mesmerizing geometric patterns—the 'Minskytron'—using only a few lines of code on a machine with just 4 kilobytes of memory.
