Secondary storage devices provide a way for the computer to store information on a permanent basis. Memory storage units are of two types – primary and secondary storage unit. Primary Storage Device: Primary Storage Device can store and retrieve data, as they are feed into it. What is Storage Devices : In computing, storage device is a hardware which can store data and files. In the storage devices, information or data can be stored temporarily or permanently. Secondary Storage Device . The memory of a computer is the most important component of CPU. Hard Disk Drives Internal components of a hard drive. The storage device is stolen. Whether through burglary, pickpocketing, mugging, or other forms of theft, you can lose the entire device and all the information that's on it. In this article, we are going to know Secondary storage devices and Characteristics of Secondary Storage devices in the computer in detail. List of storage devices. Computer data storage, often called storage or memory, is a technology consisting of computer components and recording media that are used to retain digital data.It is a core function and fundamental component of computers. Secondary storage is used to hold data and programs on physical devices when the computer is not in use. A hard disk drive (HDD) or hard drive is an air-sealed enclosure which consists of a series of magnetized disks on which data can be stored. : 15–16 The central processing unit (CPU) of a computer is what manipulates data by performing computations. Storage Device Type # 1. There are mainly two types of storage devices i.e. Fires, floods, explosions and other catastrophic events. These can all destroy vast amounts of data. Generally there are two type of Storage Devices exist -Primary Storage devices and Secondary storage device. The primary memory that is RAM (Random Access Memory) or Read-Only Memory has a specific and limited storage … Without secondary storage all programs and data would be lost the moment the computer is switched off. This can be used to store data indefinitely and to transfer data between computers. Secondary Storage Device. Below, we compare a number of secondary storage devices in terms of their capacity, speed and portability. Primary storage devices and secondary storage devices in a computer.