JTAG

JTAG stands for "Joint Test Action Group". Imagine you have a toy that has a lot of pieces that need to work together: you have wheels, gears, buttons, and lights. In order to make sure everything is working properly you need to check each part. JTAG is like a way to check all of these parts without having to take the toy apart (which can be very hard and time-consuming).

JTAG is a technology that allows you to test and debug electronic devices like your toy or a computer. When you turn on your computer, there are many small parts inside that must work together, and JTAG can help make sure they are all working properly. JTAG connects to specific points inside the device and can check if everything is OK or not.

Think of JTAG like a mechanic who can open up the hood of your car and check under it to make sure everything is running well. They don't need to take your car apart or disrupt anything - they can just connect their computer to a few points in the engine and they can see what's going on. JTAG is like that for electronic devices!