About: http://webisa.webdatacommons.org/127723905

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A crystal or other device is used to generate the clock signal, such crystals being capable of generating clock signals at predetermined frequencies such as 8 Mhz, 16 Mhz, 32 Mhz and 64 Mhz.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com