My first contact with computers was with a mainframe back in the mid 70's. The company to which I sold part of my first business owned one and we started processing payments and invoices through it, via cards which had to be marked with magnetic pencil
Some friends had Apple's and I bought a Sinclair for a niece, but it wasn't until 1981 when a friend who ran a PC store got the new IBM in stock, that I got interested in PC's. I bought one immediately and soon after several more for the office.