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

I booted UNIX V4 (first C rewrite) in a PDP‑11 emulator. It feels tactile—no backspace, staggered print, slower typing, and ...
Investopedia

Free File Fillable Tax Forms: What They Are and How They Work

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Lea Uradu, J.D., is a Maryland state registered tax preparer, state-certified notary public, ...
Nature

Visual system articles from across Nature Portfolio

The visual system is the part of the central nervous system that is required for visual perception – receiving, processing and interpreting visual information to build a representation of the visual ...