Hey there!

I have have read somewhere that Japanese aren't so good with computers, however I higly doubt about this.

1/ All japanese families/people have and use a computer or laptop. This is because they make the newest technologies and the prices are lower for their society. However when they import you'll notice a huge raise in the price.

2/ I think IT is rapidly chainging with the time. I mean you have studies something those 5 or 4 years and when you finally graduate you realise there are many new things you don't know.

3/ If you are good in programming then you definetely stand a better chance. Also if you learn Japanese language at some level than your chances are even higher to find a job.
4/ Working for Google is quite well paid and enjoyable so you could give it a try.

Good luck!