These are used for taking clear pictures that you can enlarge without it being pix elated. They have inter changeable lenses and flash extensions and some also have mic extensions.
There are the most powerful and flexible camera as they have multiple different shoot modes as they have modes for the camera to take a photo of item that are moving fast or the nature setting where it picks up detail of small objects like insects. This has a lot of mega pixels to capture a all the detail.
There are built in memory on mostly built in however they also have SD or micro SD cards.
Point and shoot Camera
These are for those who just want to capture pictures as they go. These are cheaper and easier to carry.
They have less mega pixels than a DSLR and a bride camera as it is a smaller lens and it is a compact camera so it doesn't have as many of the same features like the nature mode and the high speed mode.
these come with abilities to have removable storage and some brand can now shoot in 4K there are waterproof camcorders that rarely have sound that is able to be recorded along side the video.
These have to be edited on another device like a computer as there is on most they only let you delete videos and some camcorders also allow you to take pictures as well.
These cameras record video in 360 degrees these are new to the market so therefore there are not many models this means the features are all pretty similar with the 4K and the shape they are mostly round or rectangles.
These do no have a screen on so they are live streamed to a phone or tablet to see what the camera can see.