Primary memory is the internal working memory of a computer, and it includes RAM and the cache. Secondary storage is also called external memory, and it includes the computer’s hard drive.
Primary storage is the fastest memory in the computer, but it only holds information for a short period of time while the computer is running. The data from primary storage tends to go away after the computer is turned off. When a user activates a program on a computer, data is moved from secondary storage devices into the RAM and cache of primary storage in order for the computer to actually use it. Secondary storage includes a CD-RW, a USB thumb drive, a tape drive, a floppy disk or anything else that is not used for the computer’s main memory. Anything stored in primary memory that needs to be remembered in the long run is transferred back to secondary memory when it is saved. Basically, it goes from the computer’s RAM and other places to the hard drive. The computer needs to access the information quickly to run it right away, which is the purpose of primary storage and the reason it is the fastest moving of the two storage types.Learn More
Databases provide an efficient way to store, retrieve and analyze data. While system files can function similarly to databases, they are far less efficient. Databases are especially important for business and research.Full Answer >
In order to remove scratches from a CD, wash the CD well, and then use baking soda toothpaste to gently buff scratches off the surface of the CD. Use a paste toothpaste rather than a gel to ensure that the paste removes as much of the scratch as possible.Full Answer >
The Master File Table, or MFT, is a database containing at least one entry for every file and directory on a New Technology File System, or NTFS logic volume. Each recorded entry holds the attributes that inform the operating system on how to manage the files and directories that correspond to the record.Full Answer >
A CD cover is typically 4.75 inches by 4.75 inches. These figures may vary as long as the CD cover accommodates the disc, which has a diameter of 4.65 inches.Full Answer >