PDA (Personal Digital Assistant), also known as a handheld computer, can help us to work, learn, and play on the move. 

Classified by use, it is divided into industrial grade PDA and consumer PDA. 

Industrial-grade PDAs are mainly used in the industrial field. Commonly used barcode scanners, RFID readers, POS machines, etc. can be called PDAs; 

consumer PDAs include more, smart phones, tablet computers, handheld game consoles, and so on.

PDA (Personal Digital Assistant) is a personal digital assistant. As the name suggests, it is a digital tool that assists in personal work. It mainly provides functions such as notes, contacts, business card exchanges, and itinerary.