The Differences Between DSLRs And Mirrorless Cameras
The idea of the cameras is old — very old, in fact.
The history of the cameras we know today begins even before the introduction of photography. Sometime after the extinction of the dinosaurs and before modern civilization, in ancient Greece and China, the "Camera Obscura" was conceptualized and used (via Tech Talk). This was nothing more than a simple, yet ingenious, box (or entire "room" at that time) to capture the light entering through a small hole in the front, in order to project an inverted image of real-life scenes with the collected light onto a wall opposite the opening.
As you can probably imagine, this new technology caused quite a stir. The experience of seeing these images enjoyed popularity for hundreds of years. Naturally, time passed and these "devices" became slightly more advanced, as Tech Talk notes. It took a very long time and many iterations of the cameras from those days to arrive at the present. Even now with our modern technology — whether the bulkier DSLR or the lighter mirrorless cameras — the basic premise is still the same. Each is a fancy box for capturing light, albeit with some noticeable differences.