In this chapter you will learn about the many types of secondary storage devices including their capabilities and limitations.
External storage devices of computer pdf.
Examples of external storage devices.
Memory stick is an integrated circuit designed to serve as a storage and transfer medium for digital data.
These drives often connect to the computer using usb esata or firewire connection.
Memory sticks are available in various storage sizes ranging from 4 mb to 64 mb.
Page 219 8 storage primary storage volatile storage temporary storage secondary storage nonvolatile storage permanent storage.
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The hard drive is located in the computer case.
It can be used as a backup to store achieved information or to transport data.
The picture shows an example of a drobo an external secondary storage device.
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External storage is not part of a computer s main memory or storage hence it is called secondary or auxiliary storage.
Transfer of data is possible between devices having memory stick slots.
A primary storage device such as ram and a secondary storage.
Secondary storage devices with much greater capacity than floppy disks.
It is a comprehensive computer storage system that is usually very slow so it is usually used to archive data that is not accessed frequently.
Think of your computer as a large file cabinet with many drawers and folders in which you place these documents and programs.
These graduated to the hard disk drive and then to a floppy disk.
The other drives are locations for external storage of your files.
It can store data in various form as text graphics digital images etc.
For example you may want to use an external storage device to back up important files house large digital libraries or run programs.
There are two types of storage devices used with computers.
The following list is of external storage devices used over the evolution of the computer.
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Today external storage devices range in size and storage capacity and adding portable affordable storage to your laptop is easier than ever.
In the past floppy disks and zip disks were used to store backup data.
External storage in computing terms refers to all of the addressable data that is not stored on a drive internal to the system.
Computers have multiple drives locations for storing files.
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Storage devices tertiary storage typically it involves a robotic mechanism which will mount insert and dismount removable mass storage media into a storage device.
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It is generally the c drive.