Cathode Anode

Cathode battery

computer key F8

computer key Question Forward slash

computer key Pipe Backslash

computer key F9

computer key F2

computer key F9

computer key Scroll Lock

computer key F3

computer key F10

computer key Caps Lock

computer key brackets right

computer key Quotation Marks

kids at computer

computer key F2

computer acting funny

student geometry computer

computer class

computer key Pause Break

computer key F12

computer acting funny

Computer screen blank

classroom w computer