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Before the introduction of
the computer, account posting was labor and time
intensive. A good and experienced bookkeeper at Bank of
America (BOA) could post check entries to about 2,000
accounts per day[1].
In that era, BOA was growing at a rate of about 23,000
new accounts per month. The first production version of
ERMA was able to process 33,000 accounts per hour,
792,000 accounts in 24 hours and 5.5 million accounts in
a week. The advent was a revolution in speed,
efficiency and volume – vastly reducing the manpower
required to do the mundane, repetitive administrative
work of checking account management.
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