At the power supply.
A power supply is not a computer. in the very beginning diodes were used extensively to in computers since they conduct only in one direction logic decisions could be performed by diodes as gates of truth as '1' or '0' which all computer understand being machine language
yes, diode can be used as rectifier diode to convert ac to dc
A diode is used primarily as a Rectifier
yes ofcourse diode can be used as rectifier but it's an uncontrolled rectification.
zener diode
varactor diode is a correct answer
It's a high voltage diode, typically used in microwave ovens.
a black guy
Light Emitting Diode.
The difference between the pn-junction diode and the zener diode is that the pn-junction diode is used for rectification while the zener diode is used for rectification and stabilization. Also, the zener diode can function in the breakdown region while the pn-juntion diode can not function in that regime.
A diode is a one way resistor, basically, it utilizes the silicone n, and silicone p, to create a one way electricity flow, so the current cannot flow backwards. in a computer, this would be used in many different ways, so you would have to search them all up.
The use of the pn diode is for rectification. It can also be used as a switch.
A zener diode cannot be used as switch.