Question

what are used to read the data that is stored on the memory cards ?​

Answer 1

Explanation:

Data is stored inside advanced microprocessors

It contains bit cells which can have values 0 and 1 (binary)

These memory cells are made up of floating gate transistors which changes values to 0 and 1 on voltage supply

By default it has the value 1 .When 5volts is applied, it changes value to 0

This way all the bit cells are changed values and binary codes are made.

This is how a memory card writes data