Complete the following passage using the appropriate words from the box below

A computer __________ ¹ device is a __________ ² used to measure an intrinsic __________ ³ trait, usually for purposes of __________ ⁴. Biometric devices are now in __________ ⁵ use, not only by government agencies and high-security __________ ⁶ operations, but also by security-conscious private __________ ⁷. Computer biometric __________ ⁸ help secure information on __________ ⁹ and other data __________ ¹⁰ devices. On printers and fax machines, they __________ ¹¹ that the intended recipients receive __________ ¹² documents sent. Biometric devices can make it easier to __________ ¹³ and monitor entry to high-security areas. Biometrics is also the __________ ¹⁴ of face __________ ¹⁵ technology used in __________ ¹⁶ with camera surveillance or special biometric photos.