A measurement of how quickly two back-to-back accesses of a memory chip can be made. Note that a DRAM chip’s cycle time is usually much longer than its access time, which measures only a single access. This is because there is a latency between successive memory accesses.
A single track location on all the platters making up a hard disk. For example, if a hard disk has four platters, each with 600 tracks, then there will be 600 cylinders, and each cylinder will consist of 8 tracks (assuming that each platter has tracks on both sides).
- cylinder zero
Cylinder zero refers to the outermost cylinder in a hard disk that can be used for data storage.
A slang term used to describe the feeling of belonging in cyberspace. For example, this could be owning real estate in cyberspace, such as a domain name. It is also used to describe interactions of people in cyberspace through blogs, chat rooms, instant messaging, discussion forums and other places where people can communicate online.
A resolution standard for TV and DVD-Video. In the NTSC system, Full D1 represents 720×480 pixels. The specifications for D1 TV and DVD-Video are as follows: TV PAL: 704×576 TV NTSC: 704×480 DVD-Video PAL: 720×576 (MPEG2) DVD-Video NTSC: 720×480 (MPEG2)
Short for disk-to-disk, a type of data storage backup in which the data is copied from a disk-typically a hard disk-to another disk-such as another hard disk or other disk storage medium. In a D2D system, the disk that the data is being copied from typically is referred to as the primary disk and the […]