RAID 0 is one of the many RAID levels supported directly by OS X and the Mac. RAID 0 (Stripe) splits data equally among two or more disks that make up the RAID 0 striped set. RAID 0 is primarily used to increase the performance of a Mac’s storage system.
RAID 1 is one of the many RAID levels supported directly by OS X and the Mac. RAID 1 creates a mirror (an exact copy) of the data on a hard drive onto one or more additional disks. RAID 1 requires a minimum of two disks; additional disks in a RAID 1 set increase overall reliability by the power of the number of disks in the RAID 1 set.
RAM (Random Access Memory) is a computer's main memory. RAM temporarily stores parts of the operating system and any applications you run, to allow faster access to data.
Desktop databases come in two basic types, relational and flat file. A relational database is made up of multiple tables. Each table contains sets of information that relates to other tables. A relational database allows you to use and edit a table independently of other tables in the database.
In terms of computers and backup software, a restore is the process of recovering data from a backup, either manually or using backup software.
SATA (Serial Advanced Technology Attachment) has been the hard drive interface method of choice for Macintosh computers since the G5. SATA's advantages over other hard drive interface methods include faster transfer rates, thinner and more flexible cabling, and easier plug-and-play connections.
Snow Leopard continues the Apple tradition of naming OS X versions after big cats. Snow Leopard, more formally known as OS X 10.6, is the sixth in the series of Unix-based operating systems from Apple.
Software includes any program that can be stored and used on a computer. The term usually refers to both applications and operating systems.
The Spaces feature in Mac OS X 10.5 lets you create multiple versions of your desktop, each with its own set of windows and applications. For example, you might want to create one space for work and one for play. You can switch between spaces with the tap of a key or the click of a mouse.
Spyware is any software that has the ability to gather information about a computer user, usually without the user's knowledge.
A Trojan horse is a program, usually malicious, that attempts to trick you into installing it by pretending to be something else. If it's successful, the Trojan can then carry out whatever task it was designed to do, such as provide unauthorized access to, and control of, your computer.
