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作者将 1982 年 64KB PDP-11 Unix 的 init.d、fork/wait 与 overlay 机制类比到 LLM 编码代理的上下文压缩问题，通过编号状态文件（write-once 锁存、append-only 负记忆、WAL 式回放）让代理在 200k-token 压缩后不丢失关键不变量。
A detailed overview of a restored PDP-11/83 system running 2.11BSD Unix, showcasing its hardware components, software setup, and networking capabilities for serving a web page.
An article about 'Kek', a versatile PDP-11/70 emulator that runs on platforms from Linux to microcontrollers like the Teensy 4.1 and ESP32, capable of running various Unix versions.
The article details how Douglas McIlroy compressed a 250kB dictionary into 64kB RAM for Unix spell using stemming, Bloom filters, and Golomb coding, achieving near-theoretical-limit compression.
The PDP-11 minicomputer, introduced in 1970, was highly influential in computing history, helping to birth UNIX and the C programming language. This article provides an overview of its architecture and impact.