A camera is an optical instrument that records images that can be stored directly, transmitted to another location, or both. These images may be still photographs or moving images such as videos or movies.

A device that can make and receive telephone calls over a radio link while moving around a wide geographic area.

Components is the constituents of electronic circuits.

A personal computer in a form intended for regular use at a single location, as opposed to a mobile laptop or portable computer.

DVD is an optical disc storage format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than compact discs while having the same dimensions.

Headphones are a pair of small loudspeakers that are designed to be held in place close to a user's ears.

A line of tablet computers designed and marketed by Apple Inc., which runs Apple's iOS operating system.

A laptop has most of the same components as a desktop computer, including a display, a keyboard, a pointing device such as a touchpad (also known as a trackpad) and/or a pointing stick, and speakers into a single unit.

Computer speakers, or multimedia speakers, are speakers external to a computer, that disable the lower fidelity built-in speaker. They often have a low-power internal amplifier.

A mobile computer that is primarily operated by touching the screen.

A telecommunication medium for transmitting and receiving moving images that can be monochrome (black-and-white) or colored, with or without accompanying sound.