Personal digital assistant

A personal digital assistant (PDA) is a handheld computer. Personal digital assistants were designed to replace non-electronic day planners. They became widespread in the 1990s. Many PDAs can work as an address book, a calculator, a clock, and a calendar. Some also have games on them. The work of PDAs is now mostly done bysmartphones that use Wi-Fi and touch screens for e-mail, recording video, playing music and making phone calls.

PDA's processor is a chip which makes the device work. PDAs can have different processors depending on their speed. If access to the Internet, GPS, or video recording are needed, the PDA needs to have a fast processor.