Simple Browser : Welcome guest : log in
Home |  Graph |  ]  KB:  Language:   

Formal Language: 




Sigma KEE - OpticalDisc
KB Term: 
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
optical disc
This Class comprises several subclasses of disc-shaped data storage devices. Unless otherwise indicated, instances of all of these classes are generally consist of plastic discs incorporating one or more reflective layers of gold or aluminum, which is pitted by a laser to encode data.
Relationships      
Parents digital data storage device An instance of DigitalDataStorageDevice is an ElectronicDataStorageDevice intended to be used for storing data (information) in some digital (discrete bit) encoding scheme designed for interpretation by computers.
Children blu ray discA type of CompactDisc that has significantly more storage than a DVD.
 compact discAn instance of CompactDisc is a flat, disc-shaped DigitalDataStorageDevice that has a reflective medium on at least one side, in which a laser is used to write and read bits of data.
 DVDAn instance of DVD (Digital Versatile Disk) is a disc-shaped DigitalDataStorageDevice similar to a CompactDisc, but with a larger storage capacity.


Show simplified definition with tree view
Show full definition (without tree view)
Show full definition (with tree view)


Sigma web home      Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is open source software produced by Articulate Software and its partners