In 1969, Neiman Marcus offered a Honeywell "kitchen computer" in its Christmas catalog. The price tag was $10,600, which is equivalent to about $80,000 today. The price included a two-week course in programming, which was required to know how to use the computer. The computer could supposedly store recipes and help housewives plan meals.
No one ever bought one. Or rather, no one ever bought the "kitchen computer," but a few people (engineers, and the like) did buy the H316 minicomputer, which is what the kitchen computer really was. Neiman Marcus and Honeywell had simply repackaged the H316 as a kitchen computer.
Nevertheless, the "kitchen computer" is now credited as being the very first time a company had offered a home computer for sale. One of them is on display at the Computer History Museum
More info: wikipedia
image source: Divining a Digital Future, by Paul Dourish and Genevieve Bell
If someone had bought one of the kitchen computers, it would have been pretty much unusable, because a user had to communicate with it in binary code, using a series of 16 buttons on the front to enter data. From Wired:
The thought that an average person, like a housewife, could have used it to streamline chores like cooking or bookkeeping was ridiculous, even if she aced the two-week programming course included in the $10,600 price tag. If the lady of the house wanted to build her family’s dinner around broccoli, she’d have to code in the green veggie as 0001101000. The kitchen computer would then suggest foods to pair with broccoli from its database by "speaking" its recommendations as a series of flashing lights.
image source: The Computer, by Mark Frauenfelder