Photograph files taken with a digital camera also carry certain Exchangeable Image File Format (EXIF) data where you can see the camera settings that were set when the photo was taken.
The new Adobe Photoshop CC introduced quite a few awesome updates to existing tools and feature. One of the most welcomed ones sure is some of the new Image Resize functionalities, check it out.
Did you know you can use your camera with Adobe Lightroom to shoot photos and display them directly on your computer screen? It's called shooting in tethered mode.