system}.

:arc: [primarily MSDOS] vt. To create a compressed {archive} from a
group of files using SEA ARC, PKWare PKARC, or a compatible
program. Rapidly becoming obsolete as the ARC compression method
is falling into disuse, having been replaced by newer compression
techniques. See {tar and feather}, {zip}.

:arc wars: [primarily MSDOS] n. {holy wars} over which archiving
program one should use. The first arc war was sparked when System
Enhancement Associates (SEA) sued PKWare for copyright and
trademark infringement on its ARC program. PKWare's PKARC
outperformed ARC on both compression and speed while largely
retaining compatibility (it introduced a new compression type that
could be disabled for backward-compatibility). PKWare settled out
of court to avoid enormous legal costs (both SEA and PKWare are
small companies); as part of the settlement, the name of PKARC was
changed to PKPAK. The public backlash against SEA for bringing
suit helped to hasten the demise of ARC as a standard when PKWare
and others introduced new, incompatible archivers with better
compression algorithms.

:archive: n. 1. A collection of several files bundled into one file
by a program such as `ar(1)', `tar(1)', `cpio(1)',
or {arc} for shipment or archiving (sense 2). See also {tar
and feather}. 2. A collection of files or archives (sense 1) made
available from an `archive site' via {FTP} or an email server.

:arena: [UNIX] n. The area of memory attached to a process by
`brk(2)' and `sbrk(2)' and used by `malloc(3)' as