Answer:
If you’re new to computers (or even if you’re not), the names that get applied to different memory sizes can seem strange.
Whether you’re talking about an 8-megabyte memory card, a 500-gigabyte hard drive, or a 1 terabyte SSD drive, the terms always seem abstract and random.
How exactly do you gauge just how much space a gigabyte, a terabyte, or even a petabyte describes?
What Is a Byte?
To understand how the larger blocks of memory work, it’s important to build an appreciation for the smaller blocks of space that those larger ones are made from.
In simple terms, a single byte is typically eight binary digits. A binary digit is a 1 or a 0, which in very old computers literally represented a switch that was on or off.
There are some computer systems that have bytes of other lengths, but most modern computers today are based on an eight-bit byte binary system.