The UNIX system has been in wide use for over 20 years, and has helped to define many areas of computing.
people seem to like k&r though
in areas where Multics attempted to do many tasks, UNIX tried to do one task well.
bro
The basic organization of the UNIX filesystem, the
idea of using a user process for the command interpreter, the general organization of the filesystem interface, and many other system characteristics, come directly from Multics.
BRO THEY FUCKING STOLE ALL THIS SHIT TOO
louis pouzin created the word "shell"
Allowing a user to create processes inexpensively led to using one process per command, rather than to commands being run as procedure calls, as is done in Multics.
yeah and 40 years later they still can't be virtualized or easily tested
Whenever a new system that tried to upstage UNIX came along, somebody would dissect the newcomer and clone its central ideas into UNIX.
love getting called uppity
The unique ability to use a small, comprehensible system, written in a high-level language, in an environment swimming in new ideas led to a UNIX system that evolved far beyond its humble beginnings.
"we took all the credit for everything since the 1960s"
hmmm tbh @SRAZKVT you might find this interesting ("The Design and Implementation of the 4.4 BSD Operating System"). thinking about C as the rust of the 80s is killing me
The third important distinction of UNIX was that it provided individual users with the ability to run multiple processes concurrently and to connect these processes into pipelines of commands.
literally pouzin's legacy
At the time, only operating systems running on large and expensive machines had the ability to run multiple processes, and the number of concurrent processes usually was controlled tightly by a system administrator.
bro this guy keeps trying to radicalize me. vint cerf is the system administrator my man
oh lmao plan 9 is literally just y2k unix
this guy is so funny it's almost charming
USG released UNIX System V (System V) in 1983;
that system is largely derived from System III. The court-ordered divestiture of the Bell Operating Companies from AT&T permitted AT&T to market System V aggressively [Wilson, 1985; Bach, 1986].
props for not using some invective term instead of "court-ordered divestiture"
Version 4 introduced paging [Miller, 1984; Jung, 1985], including copy-on-write and shared memory, to System V.
ok so not cerfslop. false alarm
The System V implementation was not based on the
Berkeley paging system.
what could this mean
That system included STREAMS, an IPC mechanism adopted from V8
both of these names suck but now i gotta make up a name for my macrokernel
The ease with which the UNIX system can be modified has led to development work at numerous organizations,
sir i know how corps make decisions but nice try
Probably the most widespread version of the UNIX operating system, according to the number of machines on which it runs, is XENIX by Microsoft Corporation and The Santa Cruz Operation.
i bet they bought it like gates bought DOS
Systems prominently not based on UNIX include IBM's OS/2 and Microsoft's Windows 95 and Windows/NT.
"prominently not" ok
All these systems have been touted as UNIX killers, but none have done the deed.
i'm gonna do it
