Student of group 961-21 Babadjanov Jamshid English lesson Self studies

Characteristics of computer storage devices
Volatility — among computer storage devices some are volatile and others are non — volatile. In volatile storage devices, when the computer is turned off, stored data will be lost. As an example-RAM. In non-volatile storage devices even if power is turned off, data will store. Most secondary, tertiary, and off-line storage is non-volatile.
Speed — speed measures that how much time takes a device to read or write data. Most internal storage devices are speed than external storage devices as an example internal hard drive is speed than an external hard drive.
Portability — most storage devices can carry anywhere for example -USB, Optical disks. These are small in size as well removable but some storage devices are located in the computer or any other devices. These are normally big and not removable. Internal storage devices are difficult to carry anywhere.
Cost — capacity, portability, the durability of storage devices are affected by cost. Storage devices which can store a large capacity of data are expensive.
Durability — if something is durable. It can be able to withstand give up physical movements. Especially portable storage devices should be durable. These are carried anywhere. So portable storage devices should be durable to prevent easy damage.