Why are flash drives of 2, 4, 8 GB and not 1, 3, 7 GB? This question hit my mind when I first get in touch with flash drives if this happened to you too then here is the answer to this question.
If you know that memory is in binary and always address in 2^N bytes and to get a flash drive of 4 GB, you need 2^32 bytes of memory and if you add a number to N, then you’ll get 2^33 which is equal to 8 GB. Now if you want to make a flash drive of 7 GB, then you need a 4 GB chip, a 2 GB chip and a 1 GB chip plus you need to make the board a little big, and you need a more complex circuit. Which will cost manufacturers more money and the manufacturer have to increase the price of that flash drive.
Bigger board means the price will increase and not the only cost, the size of flash drive will also increase a lot. And it won’t survive in this world of compact technology. And why would you buy a 7 GB flash drive which is big and costly than an 8 GB flash drive which is small and cheap? Now it is easier to understand that why manufacturers avoid making a flash drive of this capacity and make flash drives in 2, 4, 8, 16 GB capacity format.