NEC MultiSpeed
The MultiSpeed was a line of laptop computers developed by NEC between 1986 and 1988. The inaugural MultiSpeed was the first battery-powered laptop with a 16-bit microprocessor, sporting a NEC V30 clocked at either 4.77 MHz or 9.54 MHz. The clock speed was able to be changed via a DIP switch on the back, hence the name MultiSpeed. The MultiSpeed received positive reviews in the press and performed well in the marketplace, becoming the top-selling laptop in the United States in early 1988, per one survey.