External Storage Computer Science

Learn about and revise storage with this bbc bitesize gcse computer science ocr study guide.

External storage computer science.

Depending on the format of the original file these files may be the entire original file or scaled thumbnails in the case of images. Types of external storage magnetic storage. Examples of external storage devices. These drives often connect to the computer using usb esata or firewire connection.

This makes ram totally unsuitable for the long term. Secondary storage is about two orders of magnitude cheaper than primary storage consequently a hard drive or an additional slower ssd may used as secondary storage to a primary faster pcie ssd. Such devices may be permanently attached to the computer may be removable or may use removable media. Alternatively referred to as external memory secondary memory and auxiliary storage a secondary storage device is a non volatile device that holds data until it is deleted or overwritten.

The bbc is not responsible for the content of external sites. Any open programs or files on a computer are temporarily stored in ram whilst being used. External storage data path user id cache previews this directory contains the previews of files which have been viewed by the user in the box crypto format. The picture is an example of a drobo and an example of a popular external storage solution.

It is a very fast solid state storage medium that is directly accessible by the cpu. More commonly referred to as an external drive external storage is storage that s not part of the internal parts of a computer. Being volatile any data stored in ram will be lost when power is removed.