Computer Problems..... on a holiday!

I was having trouble with my computer. So I called Eric, the 11

year old computer wizard next door, whose bedroom looks like Mission Control and asked him to come over. Eric 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.'

Eric 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 I 0 T

I used to like Eric...