J
Jerusalem one of the earliest MS-DOS file infector viruses
known to be in the wild. Originally discovered and
probably written in Israel. Originally known as the
Israeli virus, it has also been called PLO, Friday the
13th, and 1813. Still one of the most widespread of
file infecting viral programs and widely used as a
template for the development of variant viral strains.
joke program see prank
journalling storage, or transfer to storage, of transactions,
rather than the resultant data.The idea is that trans-
actions are easier to reproduce than (say) an entire
database, and the database can be reproduced, at
need, by a batch processing of the journalled trans-
actions.
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