Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Primary and secondary storage.
Member rating: No Rating | Words: | Submitted: Mon Oct 20 2003
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Primary Storage, i.e. random access memory (RAM). This type of storage holds data and instructions that are being worked on. When the computer is switched off, the contents of RAM are lost. This is known as volatile storage. Secondary storage, such as hard disks, floppy disks, CD's, DVD and magnetic tape. This type of storage is non-volatile. Floppy disks The standard 31/2" floppy disk is a thin, flexible plastic disk coated in metal oxide enclosed in a rigid plastic casing. A standard high-density disk has a storage capacity of 1.44 Megabytes. A diskette consists of two surfaces, each of which contains typically 80 concentric circles called tracks. Each track is divided into sectors. A floppy disk has to be formatted before it can be used, and this process performs the following tasks: * Deletes any data already on the disk * Divides the disk into the tracks and sectors - one sector holds 512 bytes of...
Get instant access
- Instant, unlimited access to our documents in full
- Swap your work for free access, or pay £4.99
- To see the full version of this document and 151,713 others
