I have a soft spot for the Atari 400 as it was my first computer. My parents got it for my older brother to help with school work, but he didn't want to have anything to do with it (he still doesn't like computers), so I latched onto it and thus began my lifelong love of computers. Eventually I graduated to an Apple IIe and then a 486, but I still have my Atari 400 and IIe and use them to this day. The 400 was a nice little computer, but due to the low amount of RAM (16K unless you got a dealer to upgrade it to 48K like the 800 had) it was stuck with cartridge software and cassettes as disk based programs needed 24K min (I guess 8K must have been needed for the DOS). The keyboard wasn't the worst, but you really didn't want to type long programs or documents on it. Still, it was a great starter computer and had some really nice games.