Muscle wasting, also called muscle atrophy, is the weakening or loss of muscle tissue. Muscle wasting causes a significant decrease in muscle strength and the ability to move the muscle, according to MedlinePlus. In a healthy individual, muscle wasting can occur as result of the lack of physical exercise.
Primary Storage Device. Alternatively referred to as internal memory, main memory, and primary memory, a primary storage device is a medium that holds memory for short periods of time while a computer is running.
Without secondary storage, you would lose all of your data everytime your computer powered down. In other words, your computer would not have anywhere to save data indefinitely. secondary storage devise are non -volatile memory ..that is they are premanent storage devices..   -Prevent lost of data..