An e-reader, also called an e-book reader or e-book device, is a mobile electronic device that is designed primarily for the purpose of reading digital e-books and periodicals.
Amazon's Kindle Keyboard e-reader displaying a page of an e-book
Mobile computing is human–computer interaction in which a computer is expected to be transported during normal usage and allow for transmission of data, which can include voice and video transmissions. Mobile computing involves mobile communication, mobile hardware, and mobile software. Communication issues include ad hoc networks and infrastructure networks as well as communication properties, protocols, data formats, and concrete technologies. Hardware includes mobile devices or device components. Mobile software deals with the characteristics and requirements of mobile applications.
Foldable Samsung Galaxy smartphones, capable of web browsing, e-mail access, video playback, document editing, file transfer, image editing, and other tasks common on smartphones. A smartphone is a tool of mobile computing.
The Telxon PTC-710 is a 16-bit mobile computer PTC-710 with MP 830-42 microprinter 42-column version.
The wearable computer, Apple Watch, released in 2015
MOBIDIC mobile computer of 1959