Sooner or later, computer data gets corrupted or goes missing. When that happens, it can mean that hours, days or even years of work go right down the drain. Don't let this happen to you. Keep your data backed up and know how to recover it. Don't worry, it's not nearly as complicated as it sounds.
PARTIAL BACKUP
In this form of backup the operating system and programs are not backed up. Only unique files created by the user are. When restoring this type of backup, you will need to reinstall the computer's operating system and programs, but will not lose any data in the end. This can be more time-consuming than creating a system image (see "Total Backup" below) but will cost less and provide potentially higher reliability in the long run.
TOTAL BACKUP
This method of backup means copying every bit of data that is on a computer. This is the most time consuming form of backup. This is best done to a very large device such as an external hard drive or tape. Performing such a backup to CD-ROMs or DVD-ROMs will require an inordinately large number of discs which could become lost, damaged or happen to be defective.
TOTAL BACKUP WITH SYSTEM IMAGING
Creating a so-called "image" of the computer is a popular form of total system backup. This is a single file that represents all the data on the system's hard drive. Because of this file's extremely large size, it must be placed on a high-capacity device like an external hard drive or segmented onto multiple smaller devices. The advantage of this backup is that it includes the operating system, programs and system configuration data. The machine can be brought back to its exact state before data loss occurred with just a small handful of clicks or keystrokes.
INCREMENTAL BACKUP
This is the process of backing up your data only when changes or additions are made. For example, you might perform a total backup, and then add a new folder or directory to your backup medium after completing a large project or installing important software. Peforming your backup incrementally saves time, money and storage space.
BACKUP HARDWARE TYPES:
- USB Flash Drives, also known as Pen and Thumb drives
- Writable CD-ROM discs
- Writable DVD discs
- Writable Blu-Ray discs
- Floppy diskettes (Not Recommended)
- External Hard Drives
- Digital Tape
- Print Outs, also known as Hard Copies
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