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A secondary camera, which captures video horizontally to include the presenter(s) of the document or the audience of a presentation, can be beneficial to the device as well. Office cameras can be connected via USB 2.0 ports to a laptop or a desktop computer to function almost similarly as a web camera.
A document camera can enlarge the small print in books and project a printed page as if it were a traditional transparency by using a zoom feature. Document cameras do not require the lights to be dimmed in the room they are used in, contrary to what overhead projectors require to be visible. [3]
Wireless communication with PC input and output devices, the most common being the mouse, keyboard and printer. Transfer of files, contact details, calendar appointments, and reminders between devices with OBEX [a] and sharing directories via FTP. [44] Triggering the camera shutter of a smartphone using a Bluetooth controlled selfie stick. [45]
Wireless keyboards in the current market are commonly accompanied by a wireless mouse. Wireless keyboards based on infrared technology use light waves to transmit signals to other infrared-enabled devices. In case of radio frequency technology, a wireless keyboard communicates using signals which range from 27 MHz to up to 2.4 GHz.
Dock connector on a 2011's HP EliteBook laptop. A dock connector is an electrical connector used to attach a mobile device simultaneously to multiple external resources. Dock connectors typically carry a variety of signals and power, through a single connector, to simplify the process of docking the device.
A computer mouse with the most common features: two buttons (left and right) and a scroll wheel (which can also function as a button when pressed inwards) A typical wireless computer mouse. A computer mouse (plural mice, also mouses) [nb 1] is a hand-held pointing device that detects two-dimensional motion relative to a surface
Wireless Mouse M315 2011: 3: Yes: Optical? RF: 1×AA: Wireless Mouse M317 2011: 3: Yes: Optical: 1000: RF: 1×AA [17] Wireless Mouse M325 2011: 3: Micro-Precise: Optical: 1000: Unifying: 1×AA: As of 2016, has a variant called the "Party Collection" M325c which comes in several vibrant, themed designs: Wireless Mouse M185 2011: 3: Yes: Optical ...
A Microsoft wireless optical mouse. An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface. Variations of the optical mouse have largely replaced the older mechanical mouse design, which uses moving ...