Anvari.org

Box: N. 1. A Computer; Esp. In The Construction `foo Box' Where Foo Is Some Functional Qualifier, Like `graphics', Or The Name Of An OS (thus, `UNIX Box', `MS-DOS Box', Etc.

:box: n. 1. A computer; esp. in the construction `foo box'
where foo is some functional qualifier, like `graphics', or
the name of an OS (thus, `UNIX box', `MS-DOS box', etc.) "We
preprocess the data on UNIX boxes before handing it up to the
mainframe." 2. [IBM] Without qualification but within an
SNA-using site, this refers specifically to an IBM front-end
processor or FEP /F-E-P/. An FEP is a small computer necessary
to enable an IBM {mainframe} to communicate beyond the limits of
the {dinosaur pen}. Typically used in expressions like the cry
that goes up when an SNA network goes down: "Looks like the
{box} has fallen over." (See {fall over}.) See also
{IBM}, {fear and loathing}, {fepped out}, {Blue
Glue}.
-- The AI Hackers Dictionary

Related:

Retrieved from http://www.anvari.org/fortune/Miscellaneous_Collections/41787_box-n-1-a-computer-esp-in-the-construction-foo-box-where-foo-is-some-functional-qualifier-like-graphics-or-the-name-of-an-os-thus-unix-box-ms-dos-box-etc.html