Harry writes "Once upon a time, it wasn't a given that PC owners should be able to format their own floppy disks. Or that ports should be standard, not proprietary. Or that it was a lousy idea to hardwire a PC's AC adapter, or to put the power supply in the printer so that a printer failure rendered the PC unusable, too. Over at Technologizer, Benj Edwards has taken a look at some of the worst design decisions from personal computing's early years — including ones involving famous flops such as the PCJr, obscure failures such as Mattel's Aquarius, and machines that succeeded despite flaws, like the first Mac. In most instances — but not all — their bad decisions taught the rest of the industry not to make the same errors again."