Laver won the first open Wimbledon championship that year, and the following year became the only player in singles history to win a second Grand Slam. He is the only player to sweep the majors in a single year in both the amateur and Open eras, an extraordinary achievement that will never be matched.
It is when the operator makes a bad decision, ignores directions, becomes distracted or does something out of character while operating a machine or system and causes a mishap or accident. A car accident caused by the driver is caused by operator error.A more thorough definition for operator error is using it as a concept that explains an accident that occurs when operating a device or system where the error the error that caused it occurred due to the uninfluenced actions of the human operator.t is when the operator makes a bad decision, ignores directions, becomes distracted or does something out of character while operating a machine or system and causes a mishap or accident. A car accident caused by the driver is caused by operator error.
Attack Error: An unsuccessful attack that does one of the following: 1) the ball lands out of bounds, 2) the ball goes into the volleyball net and terminates play or goes into the net on the third hit 3) the ball is blocked by the opposition for a point or side out 4) the attacker is called for illegal contact (lift, double hit) on the attack.