Answer:
IP address
Explanation:
if you do give out your IP address people can find you so you need to ask your parents to give out your IP address
Black or blue pen would be appropriate.
Physical component means Computer Hardware which you can touch and non Physical component means Software, which you can not touch. nonphysical component designed specially for physically component. like Microsoft company designed Software according the Hardware for example Microsoft windows 64 bit could not install on which 32 bit Architecture Hardware.