IPUX CS101A User Manual
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H
HEX
Short for hexadecimal refers to the base-16 number 
system, which consists of 16 unique symbols: the 
numbers 0 to 9 and the letters A to F. For example, the 
decimal number 15 is represented as F in the 
hexadecimal numbering system. The hexadecimal 
system is useful because it can represent every byte (8 
bits) as two consecutive hexadecimal digits. It is easier 
for humans to read hexadecimal numbers than binary 
numbers. 
I
Intranet
This is a private network, inside an organization or 
company that uses the same software you will find on the 
public Internet. The only difference is that an Intranet is 
used for internal usage only. 
Internet
The Internet is a globally linked system of computers that 
are logically connected based on the Internet Protocol 
(IP). The Internet provides different ways to access 
private and public information worldwide. 
Internet address To participate in Internet communications and on Internet
Protocol-based networks, a node must have an Internet 
address that identifies it to the other nodes. All Internet 
addresses are IP addresses 
IP
Internet Protocol is the standard that describes the layout 
of the basic unit of information on the Internet (the 
packet) and also details the numerical addressing format 
used to route the information. Your Internet service 
provider controls the IP address of any device it connects 
to the Internet. The IP addresses in your network must 
conform to IP addressing rules. In smaller LANs, most 
people will allow the DHCP function of a router or 
gateway to assign the IP addresses on internal networks.
IP address
IP address is a 32-binary digit number that identifies 
each sender or receiver of information that is sent in 
packets across the Internet. For example 80.80.80.69 is 
an IP address. When you “call” that number, using any 
connection methods, you get connected to the computer 
that “owns” that IP address. 
