How about a bus? Or a train? Or a van?
Do you suppose that there is really a Japanese minister today that has never used a computer? A smart phone? A microwave? A TV? An MP3 player? A network-connected device?
They probably use a computer to enter their home or office. Their desk phone is probably a computer. Their car radio is a computer.
It would be quite a challenge to find a living person in Japan today who has not used a computer. I suppose nothing is impossible, but some claims are so hyperbolic as to be ignored.