Backup: The backup is the process of taking identical copy of file, data, or code which can be used when original data is lost, corrupted, or spoiled. The user should use high quality media to back up the files and the best option is optical disc or external hard drive. Storage media for backups: Hard drive: It is a storage device that stores and retrieves the data. It is a rotating disk coated with the magnetic materials and holds the data even when the power is off. Hard drives are 2.5 inches in size and its storage space ranges from 160 GB to 2 TB. Optical disc: It is an electromagnetic data storage device that can be written to read using a low-powered laser beam. Examples of optical discs such as Compact Discs (CDs), and Digital Video Discs (DVDs). CD and DVD are the optical standards, which are less expensive. Optical discs can store up to 25 GB of data. USB flash drive: Memory sticks, thumb drives, or jump drives are the various names for USB flash drive. It is compact and it is easy to use. After plugging the USB device into USB port, it is ready to perform the read and write operations. The storage capacity ranges from 128 MB to 256 GB. Cloud storage: The cloud backup is a process of taking copies of the files and data into cloud. It maintains the backup hardware. The files are retrieved from anywhere but it requires internet connection. Many users are choosing cloud storage because it is not expensive. A single person can store up to 5 TB of data in Google cloud.

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Chapter 4, Problem 4.2E

Program Plan Intro

Backup:

The backup is the process of taking identical copy of file, data, or code which can be used when original data is lost, corrupted, or spoiled.

The user should use high quality media to back up the files and the best option is optical disc or external hard drive.

Storage media for backups:

Hard drive:

It is a storage device that stores and retrieves the data.

It is a rotating disk coated with the magnetic materials and holds the data even when the power is off.

Hard drives are 2.5 inches in size and its storage space ranges from 160 GB to 2 TB.

Optical disc:

It is an electromagnetic data storage device that can be written to read using a low-powered laser beam.

Examples of optical discs such as Compact Discs (CDs), and Digital Video Discs (DVDs). CD and DVD are the optical standards, which are less expensive.

Optical discs can store up to 25 GB of data.

USB flash drive:

Memory sticks, thumb drives, or jump drives are the various names for USB flash drive.

It is compact and it is easy to use. After plugging the USB device into USB port, it is ready to perform the read and write operations.

The storage capacity ranges from 128 MB to 256 GB.

Cloud storage:

The cloud backup is a process of taking copies of the files and data into cloud.

It maintains the backup hardware. The files are retrieved from anywhere but it requires internet connection.

Many users are choosing cloud storage because it is not expensive.

A single person can store up to 5 TB of data in Google cloud.

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