Chapter 1. Introduction to Migrations
The 1940s saw the birth of modern computing. With the advent of programming concepts and advances in vacuum tube technology, computers moved from mainly mechanical to electronic devices. However, even at this early stage of development, the seeds of major operational problems were becoming apparent.
In 1946, the first generally recognized computer, ENIAC, was developed. ENIAC could perform 5000 addition, 357 multiplication, or 38 division calculations a second. It covered 1800 square feet, and weighed 30 tons. ENIAC was considered a technological marvel for its use of vacuum tubes and its ground breaking performance. However, changing the programming took weeks, and maintenance was costly.
Two years later, ...
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