User:Kim/Special Issue 27/uptime

$ uptime is a command that returns set of values involving, the current time, and the amount of time system is in running state, number of users currently logged in, and the load time for the past 1, 5 and 15 minutes respectively.

Raspberry Pi

which model do we use?

Materials


Material	Application (on the raspberry pi)	Source	Method of sourcing	Reference
Silicon Dioxide (from Sand)	Semiconductor chip (CPU + GPU) Broadcom BCM2835 ^[1] + Circuit Board (fiber glass)	coastal + riverbed areas Worldwide ^[2]	mining	"Raspberry Pi LifeCycle: Materials", Iyesha Puri 2016 ^[3]
Copper	Circuit Board (conductive pathways)		extraction / mining
Tin	Electrical Ports
Silver
Palladium
Gold

↑ a crystal is grown from the purified silicon (silicon ingot). then cut into a "wafer", ultrathin layer which builds the basis for semiconductor chip
↑ on the biological impact of sand extraction and why it is scarcer than one might think https://www.greenfacts.org/en/sand-extraction/index.htm#1
↑ https://www.designlife-cycle.com/raspberry-pi

publishing

[1] rystal is grown from the purified silicon (silicon ingot). then cut into a "wafer", ultrathin layer which builds the basis for semiconductor chip

[2] the biological impact of sand extraction and why it is scarcer than one might think https://www.greenfacts.org/en/sand-extraction/index.htm#1

[3] ttps://www.designlife-cycle.com/raspberry-pi

[1]

[2]

[3]