In 1979, the Apple II Plus was a badass piece of hardware, and the Apple Graphics Tablet was a flashy accessory. At $650US, it let users sketch with a wired stylus. Measuring 3/4 in x 15 1/2 in x 15 3/4 in, the Graphics Tablet was eventually discontinued when the FCC discovered that it caused radio frequency interference problems.
Sure, the wired stylus is a kludge, as is the general design (don't look at the back), but remember that 1979 was 5 years before the first Macintosh was released and computer mice became ubiquitous.
Edible Apple has some additional photos and an old ad promoting the tablet and Utopia software. Go and check out an interesting piece of Apple history -- complete with vintage scotch tape!