
Glossary

This glossary defines many of the terms used
in this book. It includes terms and definitions
from "Internetworking with TCP/IP"
by Douglas E. Comer, Department of Computer
Sciences, Purdue University, West Lafayette,
IN 47907.
Glossary Listing
A
- Auto-launch map
- Launch map is a function for managing multiple
PCs on which Desktop On-Call is installed.
Auto-launch map is an enhanced version of
launch map. Desktop On-Call broadcasts a
query request in the sub-net and makes a
list of all PCs on which Desktop On-Call
is installed. Any sub-net can be included
as the broadcast target.
- Auto-update
- Auto-update is a function that checks whether
the version of Desktop On-Call is the latest,
and if not, offers guidance on how to update
to the latest version.
B
- Basic connection mode
- Basic connection mode is the traditional
way of connecting used in Desktop On-Call
Version 2.5. Desktop On-Call Version 3 supports
Enhanced connection mode in order to support
SSL, multi-windows, and file transfer. Desktop
On-Call, however, requires Web browser on
the guest PC to have functions, Java Script
1.2, Live Connect. Desktop On-Call will use
Basic connection mode if it idetects that
the browser on the guest PC has no Java Script1.2
and LiveConnect functions.
- broadcast
- A packet delivery system that delivers a
copy of a given packet to all hosts that
attach to it is said to broadcast the packet.
Broadcast may be implemented with hardware(e.g.,
as in Ethernet) or with software(e.g., as
in Cypress).
C
- Connection Wizard
- Connection Wizard will check your host PC's
network environment and help you to setup
the modules if they are not installed.
D
- Directed Broadcast address
- An IP address that specifies "all hosts"
on a specific network. A single copy of a
directed broadcast is routed to the specified
network where it is broadcast to all machines
on that network.
E
- Emulation buttons
- There are varios special keys, such as Alt,
Ctrl, and Ins. These keys work in the Web
browser of on the guest PC side, so a Java
applet cannot determine whether they are
pressed. Desktop On-Call support these special
keys as emulation buttons.
- Enhanced connection mode
- Desktop On-Call Version 4 provides the enhanced
connection mode in order to support multi-windows,
SSL and file transfer. This mode requires
the Web browser to have the following functions:
Java script 1.2 (or higher), Live connect
and JDK 1.1 (or higher).
F
G
- Guest PC
- The guest PC means the PC controlling a host
PC. The user operates a Web browser on a
guest PC. There are a host PC and a guest
PC in the Desktop On-Call network environment.
First of all, the user starts a Web browser
in a guest PC, and input a host PC's URL
address in the URL address field of the Web
browser. Then the same desktop image of the
host PC will be drawn in the Web browser
and the user will be able to operate the
host PC remotely.
H
- Host PC
- The host PC means the PC to be controlled.
You need to install Desktop On-Call on a
host PC. The Desktop On-Call network environment
contains a host PC and a guest PC in . First
of all, user starts a Web browser in a guest
PC, and input a host PC's URL address in
the URL address field of the web browser.
Then the same desktop image of the host PC
will be drawn in the web browser and the
user will be able to operate the host PC
remotely.
I
- Instruction pointer
- You can indicate a location on the screen
by using the hand-shapled instruction pointer
when you give instructions on how to use
application software.
J
K
L
- Launch map
- Launch map is a function for managing multiple
PCs on which Desktop On-Call is installed.
M
N
O
- Original Launch map
- Launch map is a function for managing multiple
PCs on which Desktop On-Call is installed.
Desktop On-Call allows you to use your own
original HTML files instead of Desktop On-Call's
ready-made Launch map.
P
- Ping
- (Packet Internet Groper) The name of a program
used with TCP/IP Internet to test reachability
of destinations by sending then an ICMP echo
request and waiting for a reply. The term
is now used like a verb as in, "please
ping host A to see if it is alive."
Q
R
S
- Subnet address
- An extension of the IP addressing scheme
that allows a site to use a single IP network
address for multiple physical networks. Outside
of the site using subnet addressing, routing
continues as usual by dividing the destination
address into a network portion and local
portion. Gateways and host inside a site
using subnet addressing interpret the local
portion of the address by dividing it into
a physical network portion and host portion.
T
U
V
W
X
Y
Z