The ID Ten T Error

Young Judy, the editor of a trivia publication, was having trouble with her computer. So she called Prem, the computer guy, over to her desk. Prem clicked a couple buttons and solved the problem.

As he was walking away, Judy called after him, "So, what was wrong?"

And he replied, "It was an ID ten T error."

A puzzled expression ran riot over Judy's face. "An ID ten T error? What's that ... in case I need to fix it again??"

He gave her a grin... ;-)

"Haven't you ever heard of an ID ten T error before?"

"No," replied Judy.

"Write it down," he said, "and I think you'll figure it out."

(She wrote...)

I D 1 0 T