TENEX

TENEX is a Ten Ex server, a type of computer server used in Unix-like systems. It was developed at Bell Labs in the 1970s and released to the public in 1979. TENEX has a number of notable features, including a disk operating system, named TENEX operating system, and a type of file system that allowed for users to access and manage files.

TENEX terminals are also associated with this operating system and were typically connected to the network using a serial cable. One of the notable features of the TENEX operating system was its ability to multitask, allowing multiple programs to be run at the same time.

The TENEX operating system was ported to several other platforms during the 1970s and 1980s, including DEC's VAX and HP's 3000. However, by the end of the 1980s, TENEX had largely fallen out of favor and was eventually replaced by other Unix-like systems.

One notable user of TENEX was Danny Cohen at the Information Sciences Institute (ISI), who was part of the team developing the CSNet and later the Internet. He used TENEX as their host operating system for the CSNet, helping to establish TENEX as a key node on the early internet.

TENEX operators was also known for the clever implemented multitasking models called "CP7" used in some systems to provide a more efficient multitasking model than what was available on other Unix-like systems at the time and of the time in TOPS20 and RT11.