Volatile memory is temporary RAM that holds active program and operating system files, but loses contents when a computer shuts down. It is useful for quick storage and access, but can cause data loss. Non-volatile memory, such as hard drives and flash memory, provides permanent storage. DDR memory is fast and used in both desktops and laptops. Data loss can be prevented with uninterruptible power supplies or frequent saving.
Volatile memory is the temporary random access memory (RAM) in a computer. This type of memory holds program and operating system files that a user has active, but does not retain their contents when the user shuts down the computer. RAM is considerably faster than a computer’s permanent storage devices, so it serves its purpose well. The temporary nature of volatile memory is a drawback however, as a user will lose any unsaved data if their computer unexpectedly loses power or if the computer crashes.
All computers and many other devices use volatile memory because it is useful for quickly storing and accessing operating system and program files, and it holds information in memory as long as the computer has power. When a user opens a program and begins typing a document, the program and its data run in the computer’s RAM until the user saves the file to the hard drive, CD, or floppy disk for permanent storage. This describes non-volatile memory. This includes hard drives, flash memory, and read-only memory. Volatile and non-volatile memory work together to play a vital role in a computer’s data storage and transfers.
Volatile memory comes in various speeds and form factors used for both desktop and laptop computers. Larger memory sticks are used in desktop computers while more compact memory is reserved for laptop computers and some all-in-one models. Double Data Rate (DDR) memory is relatively fast, is supported by most newer motherboards, and comes in form factors that suit both laptops and desktops. Some systems take advantage of dual channel technology which greatly improves the speed and performance of the computer. In this type of configuration, a set of two sticks of the same type of DDR memory is installed so that both RAM sticks can work together effectively.
There are some downsides to temporary storage, but its benefits outweigh the downsides. A major concern is data loss that can occur in the event of a power outage, unexpected system reboot, or power supply failure, but there are uninterruptible power supplies that can be used to mitigate this threat. Another way to prevent data loss when working on a document is to save the document as often as possible or use a program that automatically saves changes to your hard drive.
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