[Solved] ____ allow hundreds to thousands of users to connect at the same time, and thus are multiuser. A)Networks B)Mainframes C)Servers D)Supercomputers Iris Diaphragm: A part of the microscope that adjusts the size of the aperture, controlling the amount of light passing through the specimen. Stereomicroscope: A type of microscope designed for low magnification observation of a sample using light reflected from the surface of an object rather than transmitted through it. Dissecting Microscope: A type of light microscope designed for low magnification observation of a sample, commonly used for dissection. Compound Light Microscope: An optical instrument that uses visible light and a system of lenses to magnify small objects or details not visible to the naked eye.