Question

calculate the number of bytes required to store illumination and express the exact number of bytes in 1 tb as power of 2

Answer 1

1 TB = \[2^{40}\] bytes. Each prefix is the next successive power of 10. 2 \[2^{10}\] = Kilo, \[2^{20}\] = Mega, \[2^{30}\] = Giga, and \[2^{40}\] = Tera.

Don't know what you mean by "store illumination?" If you mean the word "illumination," it's a byte per character.