### equipment | camera | digital camera:

Webcam
* Most Webcams update pictures in set time intervals or as set by the camera's owner
  - webcams provide still images from locations around the world
* There are an increasing number of live webcams around the world.
* are cameras
  - cheap, and they capture pictures easily
  - input devices
  - liminal agents, spores of geography in a placeless realm
  - live Internet-connected cameras
  - one of the fastest growing features on the Internet
* are video cameras that are connected to the Internet
  - feed live photographs onto the Web
* are video cameras which feed video onto the Internet
  - stream a live video feed to a computer
* represent global information without the luxury of the most sophisticated technology.
+ Video camera, Uses: Cameras :: Electronics :: Data input

Infrared camera
* allow the researchers to monitor patients in total darkness.
* are especially useful in quality control applications.
* operate in one of two transmission windows in the atmosphere.

Modern camera
* are now very sensitive and work well in low light situations.
* have highly complex electronics.
* use solid state devices that do essentially the same thing.

Pinhole camera
* Many pinhole cameras employ the use of film holders so multiple exposures can be made on location.
* are small or large, improvised or designed with great care.
* can be small or large.
* have no lens, just a tiny opening which lets in enough light to make a picture.

Security camera
* are a relatively expensive way of solving rather than preventing such crimes.
* are located in casinos
  - stores

Stereo camera
* produce images that seem to have depth.
* track the fly's movement in three dimensions.

Underwater camera
* Most underwater cameras take pictures.
* assist in researching structure.
* excel in clear water.

View camera
* are the largest and most adjustable type of camera.
* tend to be large and heavy, and they require large and sturdy tripods.

Electrical equipment
* Most electrical equipment emits some kind of radio signal.
* Some electrical equipment operates at temperatures exceeding their thermal rating.
* are used for a number of purposes.
* generates heat.
* receives power through electrical conductors.

### equipment:

Electronic equipment
* All electronic equipment generates radio waves, which interfere with other devices
  - has a finite life-span
* Most electronic equipment has a remote control
  - operates on DC power, at relatively low voltages
* Some electronic equipment is highly susceptible to fluctuations or failures in electrical power.
* contains tiny microprocessors that keep track of time.
* is equipment
  - manufactured using a mix of materials such as metals, plastics, and glass
* is used to extend the sound space
  - facilitate the learning of conversational skills
  - very vulnerable to power surges
* suffers ill effects from humidity.

### equipment | electronic equipment:

Amplifier
* are electronic equipment.
* are part of radio receivers
  - stereos
  - the tiny components in hearing aids that make voices sound louder
* boost signal strength on broadband networks.
* is electronic equipment
+ Amplifier, How it works: Electronic musical instruments :: Electronics :: Audio technology
  * When an amplifier tries to make the sound louder than it can, it adds distortion to the sound. Some amplifiers are made to add controlled distortion. Distortion from transistors sounds different than distortion from tubes. Distortion from tubes is often said to be more musical. Because of all this, more expensive amplifiers often add controlled distortion with tubes.

### equipment | electronic equipment | amplifier:

Differential amplifier
* comprise the first stage of most op amps.
* preserve the balance of the input signal.