On the topic of how Sears used to be high-tech: back in 1981, when IBM introduced the IBM PC, it was the first time that they needed to sell computers through retail. So they partnered with Sears, along with the Computerland chain of computer stores, since Sears was considered a reasonable place for a businessperson to buy a computer. To plan this, meetings were held at the Sears Tower, which was the world's tallest building at the time.