The difference between "Patch" and "Batch"

The difference between "Patch" and "Batch"

Firstly "Patch" : have a lot of meanings 

1 - For Computers : it means a small program that enables the Main program works well by adding it 

ex : i need the Patch urgently to use the program

2- it means a small piece of material which is fixed over sth to cover it 

ex : your pants looks bad because of this Patch

While "Batch"

means 

a group of things or people dealt with in the same time 

ex :The bank Processes The Batch transactions into the system at the End of the day