Secondary storage devices can be defined as devices that store information such as documents, musics, videos and pictures. Information in these devices can be deleted, copied, and saved.
The Journey of Evolution
Paper Punch Cards were the first external storage for computers. The holes on the cards represent information in binary code's form. A hole means zero, and no hole means one.
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| IBM Punch Card |
Floppy Drive (8") used once magnetic media was introduced, turning Paper Punch Cards to obsolete. It became increasingly used because it could store more information and more handy compared to punch cards.
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| Floppy Drive 8 Inch |
Then, Floppy Drive (5.25") used as advancement to Floppy Drive (8"). This drive is smaller and have more capacity to store more information.
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| Floppy Drive 5.25 Inch |
After that, Floppy Drive (3.5") took place. It was designed even smaller to make carriage easy. It also provided with cover for reading area so that when the data in the Floppy Drive (3.5") was about to be read, it would not damage.
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| Floppy Drive 3.5 Inch |
The advance of secondary storage devices was continued to Zip Drive that could store more information with specialized technology that would require some technology to read it.
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| Zip Drive |
Flash Drive is the next evolution of secondary storage devices. It is also known as USB drive and pendrive. It started with small amount of MB, but evolved to store more information. Sometimes, a Flash Drive's capacity can achieve 32 GB.
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| Flash Drive |
Card Media, Portable USB and SSD are the next secondary storage that we use until today.
Prediction
Holography Storage is the next secondary storage device that is predicted to be used in the future. Holography is not a new thing since it has been used (e.g late Tupac's concert) but it is a new idea for data storage. InPhase Technologies is experimenting this kind of storage. For now, we can only know that the data will be read and wrote by lasers.
Impact on Malaysia
The usage and evolution of these devices in Malaysia shows that;
1. Most of Malaysians are familiar with the advancement of secondary storage's technology.
2. Information sharing is practiced among Malaysians.
Secondary storage devices has made every information transfer easier. It will make it easy for students to exchange notes, keep teachers' lecture and use the notes whenever necessary. Other than helping e-learning, it will tell the world that Malaysia is not left behind in technologies.
Resources:
http://www.akhilesh.in/science/articles/004secondarystorage.php
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