The document defines key technical terms related to digital images, including pixel, resolution, vector and raster images, file formats, compression, image capture devices, optimization, and storage and asset management. It explains that resolution refers to the number of pixels in an image, and provides an example of a 2048x1536 pixel image with over 3 million pixels. It distinguishes vector images, which are composed of mathematical formulas, from raster/bitmap images, which are maps of dots. Common file formats and uses of compression are also outlined. Image capture devices like cameras are measured by their pixel count, and optimization is described as adjusting settings to prevent issues like overheating. Storage methods like hard drives and USBs are defined, as well as asset