Sir: No wonder Microsoft is taking over the world. They managed to take over 20 pages in your independent publication without there being any mention of their main rival operating system, Macintosh System 7.
System 7 has been available since 1991. One of the reasons we use it in my architects' practice is because it provides multi-tasking, which means we can carry on working while the computer is printing. PC users visiting us are quite intrigued and surprised that our little old Apple Mac has been doing this for so long with such little financial outlay necessary.