External Storage Computer Science

Ram is a computer s primary memory.

External storage computer science.

Such devices may be permanently attached to the computer may be removable or may use removable media. Being volatile any data stored in ram will be lost when power is removed. The bbc is not responsible for the content of external sites. Types of external storage magnetic storage.

This makes ram totally unsuitable for the long term. Learn about and revise storage with this bbc bitesize gcse computer science ocr study guide. It is a very fast solid state storage medium that is directly accessible by the cpu. These drives often connect to the computer using usb esata or firewire connection.

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. Any open programs or files on a computer are temporarily stored in ram whilst being used. Examples of external storage devices. 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.

More commonly referred to as an external drive external storage is storage that s not part of the internal parts of a computer. Depending on the format of the original file these files may be the entire original file or scaled thumbnails in the case of images. The picture is an example of a drobo and an example of a popular external storage solution.