Intermec Janus 2020 User Manual page 530

JANUS 2020 Hand-Held Computer User's Manual
cold boot
One of two ways to boot the reader; compare to warm boot. A cold boot
invokes the BIOS boot sequence, which verifies that the 256K flash system
image is not corrupt, clears all memory, and performs a complete power-on
self test (POST) to ensure that the hardware and peripherals are operational.
The cold boot initializes the system hardware for use by system software, loads
the default configuration, runs AUTOEXEC.BAT and CONFIG.SYS, and loads
DOS. Because the physical RAM drive is initialized, all files on drive E are lost.
You may cold boot the reader to clear the reader's conventional memory, break
out of an application that is locked in an infinite loop, or recover from an error
condition.
COM port
Commonly used short form of communications port. Locations from which
data can be passed into and out of the reader. COM ports offer serial
communications, which means that data is transmitted one bit at a time over a
single line from one computer to another.
Communications Manager
An application on the reader that lets you transmit and receive files, and see
the status of the reader's COM port. This application is available on the
Application companion disk 3.
communications protocol
A set of rules or standards designed to enable computers to connect with each
other and exchange data. An example of a communications protocol is
Point-to-Point protocol.
Communications Utilities
Transmit and receive functions that you can call with PSK functions or
software interrupts. Included in the Reader Services programs.
Compound Function key
The Compound Function key is a special key on the JANUS keypad. You use
the
key on the keypad. When you press
Compound Function key icon appears on the reader's display. Once you press
a key other than
disappears from the display.
configuration
The selected parameters that determine the operating characteristics of an
electronic device.
G-8
B
key to access characters or perform functions that do not have an actual
B
, the key combination is entered into the reader and the icon
B
, the key is held in a buffer and the