Shiner lets qualify computers.
Most people mean pc which was only possible after chips were developed.
Most are unusable without an operating system, say windows 98 being one of the earliest?
Most people consider the internet to be integral to the use of a computer, and this wasn't properly usable untill broadband became widely available, what, about three four years ago?
Even the flat screen is a fairly recent development.
Even now computers are only used in affluent countries. A decade ago only geeks had computers and there use was really spreadsheets and word (numbers and writing). I don't think there were any digital camera's etc.
So computers as we know them, were invented about three years ago. Glad to clear that up for you shine.