IN THIS CHAPTER
Infamous Software Error Case Studies
What Is a Bug?
Why Do Bugs Occur?
The Cost of Bugs
What Exactly Does a Software Tester Do?
What Makes a Good Software Tester?
In 1947, computers were big, room-sized machines operating on mechanical relays and glowing vacuum tubes. The state of the art at the time was the Mark II, a behemoth being built at Harvard University. Technicians were running the new computer through its paces when it suddenly stopped working. They scrambled to figure out why and discovered, stuck between a set of relay contacts deep in the bowels of the computer, a moth. It had apparently flown into the system, attracted by the light and heat, and was zapped by the high voltage when it ...