10 Apr
![Sending and Receiving IO Sending and Receiving IO](https://luminosa.com.my/image/cache/catalog/journal3/gallery/TS921-1060x400w.jpg)
Peripherals which is input and output devices
every each Led screen build in typically receiving cards which is receive digital signals from Sending cards while receiving cards cascade each-other vertically or horizontally according the screen Size, sending cards must meet the screen size requirements some time we may use 4 or more sending card meet the screen size requirements.
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