The modern world #2 (Tablet computer)
#2 Tablet computer. BY THE EARLY 1990s electronic circuitry had been miniaturized to such an extent that it was possible to make small handheld computing devices. The first of these was the Personal Digital Assistant (PDA), which offered features including an address book, calendar, and notepad. In recent years, PDAs have been overtaken by smartphones with Internet and email access. A related product is the e-book reader, which stores books digital form and uses "electronic paper" to mimic the