Datalogic Kyman Manual de usuario descargar pdf (Pagina 75)

Flash Disk

Non-volatile memory for storing application and configuration files.

GPRS

General Packet Radio Service. GPRS is a wireless packet-based communication

service based on GSM. Its data transfer is rated between 56 Kbps to 114 Kbps. It

makes very efficient use of available radio spectrum, and users pay only for the

volume of data sent and received.

GSM

Global System for Mobile communication. It is a standard for digital cellular

communications, currently used in the 900 MHz and 1800 MHz bands.

Host

A computer that serves other mobile computers in a network, providing services such

as network control, database access, special programs, supervisory programs, or

programming languages.

Liquid Crystal Display (LCD)

A display that uses liquid crystal sealed between two glass plates. The crystals are

excited by precise electrical charges, causing them to reflect light outside according

to their bias. They use little electricity and react relatively quickly. They require

external light to reflect their information to the user.

Light Emitting Diode (LED)

A low power electronic light source commonly used as an indicator light. It uses less

power than an incandescent light bulb but more than a Liquid Crystal Display (LCD).

RAM

Random Access Memory. Data in RAM can be accessed in random order, and

quickly written and read.

Radio Frequency

RFID (Radio frequency identification)

A technology that incorporates the use of electromagnetic or electrostatic coupling in

the radio frequency (RF) portion of the electromagnetic spectrum to uniquely identify

an object, animal, or person. RFID is coming into increasing use in industry as an

alternative to the barcode identification.

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Datalogic Kyman Manual de usuario Pagina 75