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With more and more work being done "in the cloud" with web-based applications that store data on a remote server, edited through a web browser (or specialized client application), you'll want to backu
When you have multiple computers, you might want to put your files on a USB flash disk (aka a thumb drive or jump drive), and backup data to your computer's disks.
How to Backup is a free online mini-book explaining basic ideas about how to backup your network, backup technologies, and backup strategies to keep your systems online, and your data available.
If you have a laptop that you travel with, consider getting a dock for your office desk. If your laptop isn't dockable (because it's a "home" laptop computer), then, get a universal dock.
Websites are archives. A website that isn't an archive is one that displays a lot of "404 errors" - file not found.
In a typical office, several people have to read a document - the writers, the editors, a manager, the signatory to the document, and possibly some artists.
The file naming convention I use starts the name with a date: YYMMDD-file-name.ext
Archiving is different from backups. Think about them separately.
An archive is an organizational strategy for data.
A simple, transparent way to backup a personal computer is with an external hard drive or USB flash drive.
You don't need special software to do this - just copy the files.
The correct way to backup a database is to use a "mirror" or "replica" of the database.
If you're programming (or managing programmers), you can use Subversion or any other revision control system as a backup.
It's a good idea to run two sets of backups. For one, it's possible that the backup software can fail, leaving some data unsaved.
A full backup is a backup of all the files. It's used in contrast to the incremental backup, which is a backup of files changed since the last backup.
An incremental backup is a backup of all the files that have changed since the last backup. Typically, you perform a full backup, then a series of incremental backups.
Backing data up to floppy went out with the 1990s. Hardly any computers have floppy disk drives anymore.