电脑病毒 : diànnǎo bìngdú - computer virus

电脑病毒 (diànnǎo bìngdú) is "computer virus". A rather straightforward translation. 电脑 (diànnǎo) as I've mentioned before is "computer". 病毒 (bìngdú) is "virus" in the medical sense, as in English. 病 (bìng) is a noun or verb meaning "disease or illness" or "to become sick". 毒 (dú) is "poison" or "drug".