Answer: Option C
1. Digitizers:A digitizer is a device that captures analog signals, such as drawings or photographs, and converts them into digital signals that can be processed by a computer. It is also known as a graphics tablet, pen tablet, or drawing tablet. It consists of a flat surface, a stylus or a pen, and a software that records the movement of the pen on the surface. It records the position, pressure, and tilt of the pen and creates a digital image of the drawing. The digital image can be saved as a file, edited, and printed.The two types of digitizers are:

• Electromagnetic digitizers: These use a stylus with an embedded coil that emits an electromagnetic signal. The digitizer detects the signal and determines the position of the stylus.
• Capacitive digitizers: These use a stylus or finger to detect changes in electrical charge on the surface of the tablet.

2. Graphic Tablets:
A graphic tablet is a type of digitizer that has a flat surface and a stylus or a pen. It is used by artists and designers to create digital artwork, such as illustrations, animations, and graphics. The stylus or pen is pressure-sensitive and can create lines of varying thickness and darkness, depending on the pressure applied. Graphic tablets connect to a computer via a USB cable or wireless connection and require software to be installed to work.Some common applications of digitizers and graphic tablets include:

• Creating digital artwork and illustrations
• Editing photographs and images
• Capturing signatures and handwritten notes
• Converting paper documents into digital format
• Creating 3D models and animations

In conclusion, both digitizers and graphic tablets are used to convert drawings, photos, etc. to digital signals. Digitizers are a broader category that includes graphic tablets and other devices that capture analog signals and convert them into digital signals. Graphic tablets are a type of digitizer that is specifically designed for creating digital artwork and graphics.