How old were you when you started to use the computer...

I was about 16... I don't rember what they were called, but it was like a chat room in a black window - anyone else remember that or what those were called?

I started with chat too! That was when AOL sent out all of those AOL chat cds with like 1000 minutes or something. I got addicted.

I was 21, I worked for Lockheed at the Johnson Space Center's Guidance and Control Simulation Lab in Building 16, NASA Road 1. It was 1968, DOS was still a public domain software. ARPA Net, the predecessor to the Internet, had a maximum access speed of 300bps. The PC did not exist.
Digital computers were programmed using binary, octal, or hexadecimal. They had to be booted up using machine language that was entered by hand using push button registers. To load the operating system you would use paper tape, or mylar tape. Magnetic tape, punch cards, and Teletype or IBM Selectric keyboards were used to enter data only after all of the machine operating sytem software was loaded. The only games I saw were a predecessor to Pong and one where rocket ships shot at each other and you used the arrow and enter keys. Everything was in black and white. Still, no matter how archaic and slow everything was and how ignorant we were we managed to put men on the moon and bring them home again. That is where it started.

I was about 8 years old when I started using a computer for the first time

Well i was three