Around the year 2000, I realized that digital cameras would replace film-based cameras. What I did not realize was how low the price of these cameras would fall nor did I realize how cheaply it would be possible to produce a digital camera. I had thought that single-use cameras would be largely unaffected and would support film production for the foreseeable future. The prevalence of camera phones and the resulting low-priced components has clearly changed all that.
Have you ever wondered how a fully-functional digital camera can be sold for under $20? These two videos from the Khan Academy answer that question:
I have over twenty years professional experience in all aspects of photography and digital imaging. I am Chair of the ISO WG5 TG2 committee responsible for physical properties and durability of imaging material and am currently with HID Global working on systems for security printing for IDs, licenses, and credit cards. Previously, I was Director of Digital Development at Creative Memories from 2009 to 2012 and was responsible for the Creative Memories digital products and services. I also established and directed the Creative Memories Technology Center, which evaluated new products prior to product introduction, assisted with production difficulties, and provided technical information to support product sales.
Mark, I truly love it when you share this kinds of ABC’s of stuff… the chart is something that helps me visualize what’s going on when I take a picture in a way that i can share it. Thanks *U* Kathleen
One downside to Wi-Fi cameras is that some models have a difficult setup process. Once you have completed the initial setup process, the camera will be able to connect to a local wireless network. It will also be able to establish a direct wireless connection to a PC, phone, or tablet, so that you can transfer photos between your devices.
All About Images Blog 
Mark, I truly love it when you share this kinds of ABC’s of stuff… the chart is something that helps me visualize what’s going on when I take a picture in a way that i can share it. Thanks *U* Kathleen
One downside to Wi-Fi cameras is that some models have a difficult setup process. Once you have completed the initial setup process, the camera will be able to connect to a local wireless network. It will also be able to establish a direct wireless connection to a PC, phone, or tablet, so that you can transfer photos between your devices.