What is the Meaning & Definition of auxiliary memory

Secondary or auxiliary memory is the set of devices that allow you to store data complementary to those that are archived in the main memory in a computer. In computer science and for a typical computer, there are two types of memory: the primary and the secondary. He is considered main memory which usually is an inherent part of the system, consists of a rigid or hard disk that is located inside the CPU or Central processing unit and may (or may not) extended at the discretion of the user. These reports often have a capacity of more than 100GB and allow to store much of the files and data that a user typically employs.
On the other hand, secondary memory functions as a complementary device and is usually located on the outside of the computer, as one or more peripherals that have additional space to store more data than falling on the hard disk of the computer. Although it is often slower memories or smaller capacity, they are a good option of add when it comes to expanding the availability of space on one computer either.
If we speak of auxiliary memory, you can refer to old diskettes, a disk or CD-ROM, DVDs, memory drives flash, Zip disks and other alternatives. Each of them has different characteristics which suited it to one or another purpose. In addition, in the majority of cases they are available with different sizes, according to the needs of the user.
Auxiliary memory devices are connected to the computer via USB ports or in cases relate directly to main memory, creating a sub-system. Many of them also allow the mobility of the device, transporting information from one computer to another quickly and easily. Thus, expands the Networking user experience.