Learning Objectives :-
- Concept of Secondary Devices.
- About CD Rom, Hard disk and many more.
- About Storage capability.
Secondary Devices :-
Secondary storage refers to storage devices and media that are not constantly accessible by a computer system. Examples include external hard drives, portable flash drives, CDs, and DVDs. These devices and media must be either plugged in or inserted into a computer in order to be accessed by the system. Some of them are as follows :-
 |
| Hard disk |
It is the main storage
device. It consists of all of the computer’s item as well as documents created
by using all software. It is situated inside the cup.
 |
| CD ROM |
It is stand for Compact Disk
Read only memory. It is an offshoot of the CD audio disk.
 |
| Floppy Disk |
à Floppy disk: -
Floppy disk is an input device which is used to store the data. It can store only 1.44 MB of data.
 |
| Memory |
à Memory: -
Memory is also storage
device, which can help us to store out data or information. There are two types
of memory
i. Primary memory.
ii. Secondary memory
à Pendrive :-
i. Primary memory.
ii. Secondary memory
à Pendrive :-
 |
| Pendrive |
Famously
Known as thumb drive. It is a portable devices used for transferring data and programs from one computer to another computer. One can
use a pen drive to copy data, songs, games and programs from one computer to
another computer. They are found in different storage capacities and different
companies.
Storage capability
C Computer
has the ability to store very large storage capacity.
4 Bits = 1 Bit
|
4 Bits = 1 Nibble
|
8 Bits = 1Bysts
|
1Byte = 1 Character
|
1024 Byte = 1 KB (kilo Byte)
|
1024 KB = 1
MB (Mega byte)
|
1024 MB = 1 GB (Giga Byte)
|
1024 GB = 1
TB (Tera Byte)
|
By: Sahil Pandey
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