ID ten T error

 

I was having trouble with my computer.
So I called David, the 11 year old next door whose bedroom
looks like Mission Control, and asked him to come
over. David clicked a couple of buttons and solved the
problem. As he was walking away, I called after him, "So,
... what was wrong?" He replied, "It was an ID ten T error." I didn't want to appear stupid, but nonetheless
inquired, "An ID Ten T error?
What's that? In case I need to fix it again." David grinned, "Haven't you ever heard of an ID
ten T error before?" "No", I replied. "Write it down," he said, "and I think you'll figure it
out."

So I wrote down: I D 1 0 T.
I used to like that little boy..