Post by Thomas Koenig
I've been looking around a bit, but I cannot find which operating
system introduced named files.
OS/360 certainly had them, as did EXEC II. I would think that
peole started using them as soon as discs with random access made
their appearance - does anybody know more?
at least as soon as there was "system" storage devices where items for
different people & programs were stored ... as opposed to dedicated
storage devices (cards, tapes, etc) for specific program execution
(needed to select the data as opposed to select the device).
The Compatible Time-Sharing System (CTSS) was one of the first
time-sharing operating systems; it was developed at the MIT Computation
Center. CTSS was first demonstrated on MIT's IBM 709 in November 1961;
service to MIT users began in the summer of 1963 and was operated until
1973. During part of this time, MIT's influential Project MAC also
ran a CTSS service, but the system did not spread beyond these two
some of the 7094/CTSS people went to 5th to do multics
others went to IBM science center to do virtual machines, online
applications, performance, work profile and capacity planning, invented
GML in 1969 (morphs into international SGML after decade and after
another decade mophs into HTML at CERN).
Experimental Time-Sharing System
John Backus said in the 1954 summer session at MIT that "By time
sharing, a big computer could be used as several small ones; there would
need to be a reading station for each user". Computers at that time,
like IBM 704, were not powerful enough to implement such system, but at
the end of 1958, MIT's Computation Center nevertheless added a
typewriter input to its 704 with the intent that a programmer or
operator could "obtain additional answers from the machine on a
time-sharing basis with other programs using the machine
CTSS filesystem implementation (CP40/CMS & CP67/CMS inherited some
virtualization experience starting Jan1968, online at home since Mar1970