Hidden in storage, a University of Utah research associate happened upon the only known copy of this ‘revolutionary’ software

It took careful work to recover the UNIX V4 operating system from the 9-track magnetic tape. The software is foundational for ...
How-To Geek on MSN

UNIX V4 is back: I booted into the 1973 OS and it made me weirdly happy

Classic Unix tools (ls, cat, ed, cal, dc) and games show modern OS lineage ...
IEEE

A 7 bit, 3.75 ps Resolution Two-Step Time-to-Digital Converter in 65 nm CMOS Using Pulse-Train Time Amplifier

Abstract: In this paper, a novel pulse-train time amplifier is proposed that achieves linear, accurate, and programmable gain for a wide input range. Using the proposed pulse-train time amplifier, a 7 ...

Lost Unix v4 source code from 1973 recovered from decades-old magnetic tape

Archivist Al Kossow of Bitsavers, who led the technical recovery, described the process as "easy" as such efforts go. The tape, he explained, had "a pretty ...
IEEE

A Novel Time-to-Amplitude Converter and a Low-Cost Wide Dynamic Range FPGA TDC for LiDAR Application

Abstract: This article demonstrates a low-cost wide dynamic range field-programmable gate array (FPGA) time-to-digital converter (TDC) and a time-to-amplitude converter (TAC) based on an embedded XOR ...