Bug term intent is to "bug" or "bugs." But now, in a computer system or program, if some hidden undetected defects or problems, people also call it "Bug", which is how it happened?
Originally, the first generation composed of many computers are bulky and expensive vacuum tubes, and use a lot of electric power for light emission vacuum tube. Perhaps it is due to the light and heat produced by the computer is running, attracted a small insect (Bug) got into a vacuum tube, causing the entire computer does not work. The researchers took half a day, finally found the reason why, after this little bug removed from the vacuum tube, the computer has returned to normal. Later, Bug term on the standing, indicating that the computer system program to hide errors or defects or problems.
Bug saw the origin, we can know that this is a time-consuming presence, material and human -
