Appendix B. Abbreviation table The following table lists all abbreviations and acronyms used in this manual. Abbreviation Term 3G third generation of mobile telecommunications technology BGA Ball Grid Array BIOS basic input/output system CMOS complementary metal-oxide semiconductor COA Certificate of Authentication CRC cyclic redundancy check CRT cathode ray tube CRU customer-replaceable unit CTO configure to order EAIA Enhanced Asset Information Area ECA Engineering Change Announcements EEPROM Electrically Erasable Programmable Read-Only Memory EFI Extensible Firmware Interface EPO emergency power-off ESD electrostatic discharge EU European Union FCC Federal Communications Commission FHD Full High Definition FRU Field Replaceable Unit GAV General Announce Variant GPU graphics processing unit HD High Definition HDD hard disk drive HDMI high-definition multimedia interface ICs integrated circuits ICCID integrate circuit card identity ISO International Standardization Organization LAN local area network LCD liquid crystal display MAC media access control MT machine type MTM machine type and model © Copyright Lenovo 2018 105