In Computer Applications Technology (CAT), one of the areas we focus on in the information-processing cycle is input. I have often mentioned to my students about barcode scanners and RFID scanners etc. but am suprised at how little knowledge they have about this technology (which has been around for quite a while now).
In the video below, James May explains how barcodes work.
Tech-Time is a category on the Tech Teachers web site that consists of short videos of interest that a teacher can use to show to his/her class at the end of the day/cycle/lesson to generate discussion, inspire, create interest, inform or perhaps even help solidify some of the concepts being taught in CAT "theory".
I try find videos that I can use in my class and share them here on the web site in the category called Tech-Time. I hope you can use these videos too for your classes.
A folder with ALL featured Tech-Time videos in MP4 format is available in the Resources section