The waste material that comes from discarded computer technology items peripherals and electronic information devices such as computers printers software devices and monitors is known as

E -waste

Explanation:

All the waste that is generated from electronic waste is called E-waste. All devices related to computer technology and software are electronic products thus waste  generating  from such products will fall under the category of electronic waste.  

These e –waste cannot be disposed of like other landfill waste as they contain microchips, copper wire, etc, thus need special attention while disposal.

substitution is the answer in this case

the answer would be   10%