EDUCATION (CBSE/UGC NET)

Detailed explanation-1: -A CD-RW (which stands for Compact Disc ReWritable) is a Compact disc that can be recorded and erased multiple times. It can hold data or music. Most of the time it will hold data since many CD players can not play CD-RWs. During its development, the format was known as CD-E, which stands for Compact Disc Erasable.

Detailed explanation-2: -The term backing storage refers to any non-volatile data storage that will retain a computer’s data, even after the computer is powered off. Common types of backing storage devices are hard drives, SSD, external hard disk drives, optical media such as CD or DVD, and flash media such as thumb drives and memory sticks.

Detailed explanation-3: -A backup storage device is used to make copies of data that is actively in use. Backup machines provide redundancy of data residing on primary storage. Should the storage medium, such as a hard disk drive (HDD), fail or become corrupted, the original data is recovered from copies on the backup hardware.

Detailed explanation-4: -A compact disc is a portable storage medium that can record, store and play back audio, video and other data in digital form.

Detailed explanation-5: -Fixed Hard Drive A hard-drive built into the case of a computer is known as ‘fixed’. Almost every computer has a fixed hard-drive. Fixed hard-drives act as the main backing storage device for almost all computers since they provide almost instant access to files (random access and high access speeds).