What Is a Pocket Computer?

PDA (Personal Digital Assistant), also known as a handheld computer, can help us complete work, study, entertainment, etc. on the move. Classified by use, it is divided into industrial-grade PDA and consumer PDA. Industrial PDAs are mainly used in the industrial field. Commonly used barcode scanners, RFID readers, and POS machines can be called PDAs; consumer PDAs include many, smartphones, tablets, and handheld game consoles.

With the explosive development of technology, the performance of PDA has been rapidly improved. In the 1990s, open PDAs began to appear in Europe and America, and most people called them PDAs.

The biggest feature of the handheld computer is that it has an open operating system, supports software and hardware upgrades, integrates information input, storage, management, and transmission, and has powerful functions such as office, entertainment, and mobile communications. Therefore, a PDA can be called a mobile office. Of course, not all PDAs have all the above functions; even if they do, they may not be implemented due to the lack of corresponding services. But it is foreseeable that the trend and trend of PDA development is the multi-functional integration of computing, communication, network, storage, entertainment, e-commerce and so on.

In fact, there is no exact definition of handheld computers. Some people call notepads handheld computers. Generally, handheld computers refer to PalmOS, WindowsCE, or other open operating systems. They have network functions and can be freely performed by users. Software and hardware upgrades. In other words, in addition to expanding the hardware, users can also install software and even develop programs to run on it.

In use, it is simpler to operate than a desktop computer, convenient to move, and practical. It eliminates the five major limitations of desktop computers, namely: mobile restrictions, complexity of use, difficulty of mobile networking, expensive prices, and use of Idleness ^[1]

Industrial PDAs include barcode scanners,

Classic machine ^[7]

From a macro perspective, the PDA will have the following development trends:

1. Low energy consumption

Most PDA products use PDA-specific chargers to provide energy. They must not be compatible with each other. Ordinary batteries cannot support or consume power very quickly. If the use of PDAs is more convenient, the demand for PDAs will become diversified It needs to be explored in terms of energy consumption. For example, devices that store electrical energy can supply power to PDAs, such as car batteries, watch batteries, solar cells, and any other possible form of electrical energy.

2. Wireless data transmission

Traditional transmission lines have length restrictions and certain requirements for the location of the equipment. Transmission lines are not easy to organize, inconvenient to carry, and unsightly. Through the wireless network constructed by Bluetooth, the connection between the PDA and the computer can be made more convenient, or the Web can be browsed, or software can be downloaded, allowing users to conveniently and timely exchange data and information at any time and place.

3. Set multiple functions into one

PDA is moving towards the multifunctional convergence of computing, communications, networking, storage, entertainment, e-commerce, and professional applications. In particular, PDA mobile phones with a combination of PDA and mobile phone functions are favored by more and more high-end users. They are gradually becoming the new trend and mainstream force in the international mobile terminal market, and they are gradually becoming socialized and standardized.

The China Internet of Things School-Enterprise Alliance believes that the PDA market contains unlimited business opportunities and potential, and major companies and company groups in the world are striving to develop PDA in the direction they want. In the Mainland, the mobile phone market is basically dominated by overseas companies such as Motorola, Nokia, Ericsson, and the PDA market is dominated by domestic manufacturers. Therefore, China needs to seize the opportunity and gain a place in this competition. ^[2]