The difference between the embedded tablet PC and the 4U type industrial computer in general lies in the size. If you don't consider the brand, you must first determine the environment in which you need a small fanless embedded computer. Embedded computers basically have little room for IO expansion, and basically there is no way to insert a few IO cards. If it is a full-slot passive backplane (usually standard 4), 12 fast IO cards can be inserted. Then you have to consider the number of external connection ports (serial port, network port, usb, display, etc.). For example, if you want to connect many external instruments or other scanners and other devices, you may need multiple serial ports, and then you have to consider the type of serial port, which is ordinary 232 or 485 or 422 common in industry. Next, consider whether you need a low-power CPU, whether you need a PCI Express bus, and power supply. After that, consider the application environment. Temperature and humidity, dust tolerance, seismic and shock resistance level, waterproof level, electromagnetic interference, mean time between failures, etc.
As an industrial computer, an embedded tablet computer is the same as other commercial computers. There will also be some more common parameter terms, which we can also understand as professional terms. For example, the thickness of the industrial control computer is described as 1u, 2u, 3u, 4u, which means that the thickness of the industrial control cabinet is a few U. What is the structure of the embedded industrial computer?
Industrial Tablet PC
passive backplane
Slotul backplane-ului pasiv este compus din mai multe sloturi de magistrală ISA și PCI. Numărul și locația sloturilor ISA sau PCI pot fi selectate în funcție de nevoi. Placa are o structură cu patru-straturi, iar cele două straturi din mijloc sunt straturi de masă și de putere. Această structură poate reduce interferența reciprocă a semnalelor logice de pe placă și poate reduce impedanța sursei de alimentare. Backplane-ul poate fi conectat la diferite plăci, inclusiv carduri CPU, carduri de afișare, carduri de control, carduri I/O etc.
CPU card
There are many types of IPC CPU cards, which can be divided into long cards and half-length cards according to the size, and can be divided into 386, 486, 586, PII, PIII motherboards according to the processor, and users can choose and match according to their needs. Its main features are: working temperature 0-60 degree ; equipped with a "watchdog" timer; low power consumption, 5V/2.5A at maximum.
Industrial power supply
is an AT switching power supply, with an average trouble-free running time of 250,000 hours.
all-steel chassis
IPC's all-steel chassis is designed according to the standard, anti-shock, anti-vibration, anti-electromagnetic interference, and can be installed inside a passive base plate compatible with PC-bus.
Other Accessories:
Other accessories of IPC are basically compatible with PCs, mainly including CPU, memory, graphics card, hard disk, floppy drive, keyboard, mouse, optical drive, monitor, etc.

