Flash Drives and Hard Drives are used to expand the memory capacity of a computer. We are currently living in a world that gives us every reason to have a lot of files, data stored on our personal computer. But most times we end up exhausting the huge internal memory capacity that comes with our computer. This is exactly where flash drives and hard drives come in handy. However, there are some differences between the two.
In terms of capacity, hard drive is a great deal because it can be used to store files that are up to 2 terabytes, while a flash drive has a total storage capacity of 128GB. The good thing about the high memory capacity of hard drives is that, they can be used to store all files or content in a computer for backup purpose. Another difference is that; Flash drives are quite expensive than hard drives. Finally, hard drives need power source for memory storage, while flash drives don't need it
CMOS and BIOS are two types of computer technologies. They both are abbreviations, which stand for something different. CMOS stands for Complimentary Metal Oxide Semiconductor. BIOS stands for Basic Input Output System. A CMOS is a chip. BIOS is an operating system that is simple and easy to use.
It is necessary for CMOS always to be powered, but BIOS is not required always to be. CMOS also has a lower power consumption than BIOS does. With their difference in power requirements, BIOS is a critical technology, but CMOS is not. Today, BIOS is still used, while CMOS has been retired.