The Carbohydrate Fermentation test uses Phenol Red Broth to test for the fermentation of different sugars. It is one of the fermentation tests, others include the Methyl Red test and the Voges-Proskauer test.
The main reason why we use hexadecimal numbers is because it is much easier to express binary number representations in hex than it is in any other base number system. Computers do not actually work in hex (donât laugh, beginning students do ask that question). Lets look at an example, using a byte.
That still doesn't answer how a computer uses HEX code. Computers are comprised of chips, registers, transistors, resistors, processors, traces, and all kinds of things. To get the binary bits from one place to the next, software programmers convert binary to hex and move hex values around. In reality, the computer is still shoving 1's and 0's along the traces to the chips.