Peripheral Devices Flashcards
uses a small round ball to track moments and move the pointer across the screen
ball mouse
Very old standard that defines everything about serial ports including how fast they communicate, the language they use, even how the connectors should look
RS-232
This means the Zoom is built into the lens of the camera
optical Zoom
Use LED or lasers and a camera to track their movements and thus move the pointer across the screen
Optical Mouse
is used to convert data moving between parallel and serial devices and consists of a 9-pin DB connector and a chip that actually does the conversion
Serial Port
A monitor with some type of sensing device across its face that detects the location and duration of contact, usually by a finger or stylus
Touch Screen
The amount of information a particular model of camera or camcorder can capture
Megapixels
electronically simulate older film technology and provide a tool for capturing a picture that can then be loaded on a computer and sent to friends
Digital Camera
Resolution achieved by Scanners mechanically
Optical Recolution
Another name for USB 3.0 (ten times faster than USB 2.0)
Superspeed USB
This device scans and remembers unique aspects of various body parts such as your retina, iris, head image, or fingerprint, using some form of sensing device such as a retinal scanner
Biometric Device
This device reads a UPC code which enables easy updating of inventory databases stored on PCs
Barcode Reader
Defines the number of bits of information the scanner can use to describe each individual dot.
Colordepth
also known as IEEE 1394, looks and acts much like USB
Firewire
Cameras use this, accomplished by some very clever software in the camera to make an image larger
Digital Zoom
Otherwise known as a pen tablet, this enables users to paint, ink, pencil, or otherwise draw on a computer
Digitizer
The part of the host controller that makes the physical connection to the USB ports
USB Root Hub
Bar codes read by Bar code readers to track inventory
Universal Product Code
PC Cameras whose most common use is for Internet Video communication
Webcam
The most common variety of scanner
Flatbed Scanner
FireWire connection which runs at 800 Mbps
IEEE1394B
The chip in a serial port that actually does the conversion between the serial data and parallel data
UART
USB 2.0 standard that runs at 480 Mbps
Hi-Speed USB
USB 1.1 standard that runs at 1.5 Mbps
Low-speed USB
The default driver type for scanners (for a long time)
TWAIN
USB 1.1 standard that runs at 12 Mbps
Full-Speed USB
This number defines how many shades of gray the scanner can save per dot
Grayscale Depth
An integrated circuit that is usually built into the chipset and controls every USB device that connects to it
USB Host Controller
a hardware device that most commonly enables multiple computers to be viewed and controlled by a single mouse, keyboard, and screen
KVM Switch
FireWire connection which runs at 400 Mbps
IEEE1394A
A device that extends a single USB connection to two or more USB ports, almost always directly from one of the USB ports connected to the root hub.
USB Hub
