1970-80s which is when some of the first computers were created like apple computers which looked like a giant cube and a rectangle on the side which is very different than what we have today.
Hope this helps!
Im pretty sure the answer is b.
An e-payment system is a way of making transactions or paying for goods and services through an electronic medium, without the use of checks or cash. ... As the world advances more with technology development, we can see the rise of electronic payment systems and payment processing devices.
