Question:

mysterious plastic gab ?

i am new to electronic, so i donot know some components in electronic circuitswhenever i open any electronic device i find a black plastic like spot where all the cicuit line are connected whats the use my friend told it protects someting ,but what ?

Answer:

The plastic spot has an internal computational function- in essence it is a very simple computer chip, and the plastic is the same as that covering and protecting those chips. The blob-chip contains anywhere from a few dozen to a few hundred logic gates; easily enough to perform any calculatory and switching functions.

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