File extension sit

Name: Archive Files

Popularity: 10

Open With: Stuffit Deluxe

What is this sit file?

Compressed file "stuffed" by Smith Micro StuffIt software; common file compression format used on Macintosh systems; originally Mac-only, now cross-platform, meaning SIT files can be created and opened on both Macintosh and Windows platforms. Stuffit was previously developed by Allume Systems (formerly Aladdin Systems), but is now developed and distributed by Smith Micro.

Name: Programming Files

Popularity: 1

Open With: Ultra File Opener

What is this sit file?

PDP-10 Steven's Institute of Technology Load-and-Go Fortran-77 Compiler Source. The PDP-10 was a mainframe computer manufactured by Digital Equipment Corporation (DEC) from the late 1960s on; the name stands for "Programmed Data Processor model 10". It was the machine that made time-sharing common; it looms large in hacker folklore because of its adoption in the 1970s by many university computing facilities and research labs, the most notable of which were MIT's AI Lab and Project MAC, Stanford's SAIL, Computer Center Corporation (CCC), and Carnegie Mellon University. The PDP-10 architecture was an almost identical version of the earlier PDP-6 architecture, sharing the same 36-bit word length and slightly extending the instruction set (but with improved hardware implementation). Some aspects of the instruction set are unique, most notably the "byte" instructions, which operated on arbitrary sized bit-fields (at that time a byte was not necessarily eight bits).