External Storage Computer Science

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

External storage computer science.

These drives often connect to the computer using usb esata or firewire connection. More commonly referred to as an external drive external storage is storage that s not part of the internal parts of a computer. 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. Ram is a computer s primary memory.

The bbc is not responsible for the content of external sites. Being volatile any data stored in ram will be lost when power is removed. 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. Types of external storage magnetic storage.

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. 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. External hard disk drives.

Any open programs or files on a computer are temporarily stored in ram whilst being used. Examples of external storage devices. It is a very fast solid state storage medium that is directly accessible by the cpu.