Subject:
Computer ScienceAuthor:
godofredoCreated:
1 year agoanswer: Name of two secondary storage devices are as follows:
1.CD
2.SD card
characteristics of secondary storage devices :
1.CD:
1). CD stands for compact disc.
2).It is a molded plastic disk scanned by laser.
3). A standard CD is 120mm in diameter and 1.2 mm thick.
4).It is used for of audio and data storage.
2.SD card :
1). it is a non volatile memory cards.
2).its capacity is measure in giga byte such as 16GB,64GB.
3).Power consumption is very low .
4). it uses flash memory, they posses limited number of cycles so life span gradually decreases
Author:
junekrueger
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