Microsoft and Windows go back to the very beginning of the PC — when people couldn’t afford them, when networks were defined by terminal emulators and floppy disks, and when many of the Google pioneers were in diapers. Looking back at what Windows initially did and considering what Windows 7 is capable of, you can certainly say a lot has changed. Looking back at Windows Vista, you can add “thank god” to that. Windows 7 comes at an important juncture, but is the whole concept of the PC soon to be obsolete?