MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -They can store operating systems, software programs and other files using magnetic disks. More specifically, hard disk drives control the reading and writing of the hard disk that provides data storage.

Detailed explanation-2: -Answer: Yes hard disk is a permanent storage device.

Detailed explanation-3: -Explanation : A hard disk is a not kind of primary memory, it is a secondary memory. The secondary memory of the computer is known as auxiliary memory. Data on the primary memory i.e. internal memory is directly accessed by the processing unit whereas the secondary memory card data is not directly accessed by the CPU.

Detailed explanation-4: -The hard drive is where all your permanent computer data is stored. Whenever you save a file, photo, or software to your computer, it’s stored in your hard drive. Most hard drives have storage space between 250GB and 1TB.