Questions

Magnetic tape can serve as a Secondary storage unit. It is a medium for magnetic recording, made of a thin, magnetizable coating on a long, narrow strip of plastic film.

In the atom bomb, isotopes of uranium are  disintegrated with the release of a large amount of energy. Hence, the process is nuclear fission.

An operating system has three main functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,

(2) establish a user interface, and

(3) execute and provide services for applications software.

Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.