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You are here:Home » Read Only Memory or ROM

By Abhishek Ghosh October 27, 2012 12:10 pm Updated on October 27, 2012

Read Only Memory or ROM

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Read Only Memory or ROM is a storage medium used in computing devices that allows only reading, not writing data regardless of the presence or an energy source. Data stored in Read Only Memory or ROM is designed in an way that it can not be easily changed. Because it is designed to hold the firmware or even an Operating System as Graphical User Interface like in Android Tablets or for debugging. If it can be easily modified, there will be problem to reset as Read Only Memory or ROM are used for System on a Chip (SOC) devices the only way to get an interface.

 

Details of Read Only Memory or ROM

 

As the data on Read Only Memory or ROM easily can not be modified, it is convinient to store data that does not need to be changed frequently. Read Only Memory or ROM has been used in many computers to data tables. This was especially efficient when the Central Processing Unit (CPU) was very slow and ROM was cheaper than RAM . BIOS usually installed on a ROM.

Illustration of Read Only Memory or ROM

Home computers in the early 1980s came with its operating system in ROM. There was no other reasonable alternative operating system and the external drives were usually optional. Upgrading to a new version means using a soldering iron or a group of DIP switches and replace the old ROM chip with a new one. Currently the operating systems usually are installed on ROM. Mobile Computing devices like Android Tablets usually have programs in ROM.

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Usages of Read Only Memory or ROM

 

As we have mentioned above, there is no reason to think that Read Only Memory or ROM has no use today. In fact this part of hardware is crucial in any computing even today as mentioned above, be it a home computer or a complex medical device.
Abhishek-Ghosh

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Abhishek Ghosh

About Abhishek Ghosh

Abhishek Ghosh is a Businessman, Surgeon, Author and Blogger. You can keep touch with him on Twitter - @AbhishekCTRL.

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