'An ID ten T' error

As we oldies know, sometimes we have trouble with our computers.

Yesterday, I had a problem, so I called Georgie, the 11 year old next door, whose bedroom looks like Mission Control, and asked him to come over.

Georgie 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.'

Georgie 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:
ID10T

I used to like Georgie, that little shithead..