how does computer help in security at airport?what dos the computer helping in security?

how does computer help in security at airport?what dos the computer helping in security?

COMPUTER HELPING IN SECURITY:                                        security is the condition of being protected against any danger or loss... 02:44

COMPUTER HELPING IN SECURITY:
                                       security is the condition of being protected against any danger or loss. security cameras can be used to monitor our homes, schools, markets and airports, etc. security cameras take the images and store them on the computer's hard disks. these images can be used to identify any loss. let's examine how airport security is carried out.
COMPUTER HELP IN SECURITY AT AIRPORT:
                                                                                  airport security normally requires verification of passengers, identity. to verify identity of people, it used documentation, such as passport. other items that are checked include begs,suitcases, and personal belongings. security is also used to safeguard people's lives , to stop the carriage of


explosive materials and dangerous metallic objects that may be used as weapons.
some countries have introduced bio-metric passport. bio-metrics means to check and verify fingerprints, retinal scans and facial patterns through computer system.

dear fellows, have you ever traveled by an earphone? if yes, then you must have seen an X-ray system. while you are stepping through a metal detector, your belongings pass through the X-ray system.

a conveyor belt carries each items and passes it through the X-ray machine. the suspicious items are picked up by internal detectors. these detector pass the X-ray to a filter, which block the lower energy X-rays. the remaining high energy X-rays pass through as sound detector. a computer system is linked to the X-ray machine. it compares the data of the two detectors, converters them into images and shows them of the monitor screen.