TCP and IP are two of the protocols in this suite. (They 
will be described below.) Because TCP and IP are the best 
known of the protocols, it has become common to use the 
term TCP/IP or IP/TCP to refer to the whole family. It is 
probably not worth fighting this habit. However this can 
lead to some oddities. For example, I find myself talking 
about NFS as being based on TCP/IP, even though it doesn't 
use TCP at all. (It does use IP. But it uses an alternative 
protocol, UDP, instead of TCP. All of this alphabet soup 
will be unscrambled in the following pages.) 
tcp controls the transport of datas of other higher layer 
protocols.

the tcp ip protocol is an control which controls our 
protocol, and transmit the signals  tcp = transmission 
control protocol.

the role of tcp is to the data form one machine to another 
machine 
the role of ip is to idenfify the machine

Tcp protol which resides in the transport layer is mainly 
intented for process delivery through ports in the 
hosts.Process in sense the application which is running in 
our host.But IP protcol in the network layer which has ip 
addresses of the host will try to reach that address.

tcp/ip is a universal protocal because it connects multipal 
platforms(microsoft to linux,microsoft to netware).

TCP\IP---> Transmission Control Protocol\ Internet Protocol.

In past, we used a model called OSI reference model for 
transferring the content from one place to other. In that 
model there are popular 7 layers are used. But now a days 
we are using TCP\IP model. In this model totally 5 layers. 
For eg: telephone communication.
If one person wants to convey message from one place to 
other he used to dial a number. likewise In system there is 
one reference called IP. By using this IP the system 
identifies the destination machine. Through TCP the message 
communicates safely from source to destination.

TCP/IP Transmission Control Protocol/Internet Protocol it is
used to internet protocol packet sending and transmission
the packet of transmission control protocol used.

TCP and IP are two of the most important communication 
protocol in the suit called Internet protocol suit.
TCP and IP  are  software components  part of operating 
system’s kernel.
It is responsible:
•	A connection oriented protocol which is responsible 
establishing a connection before applications which use TCP 
starts exchange data
•	Disassemble the actual data (pay load) in to packet 
of fixed size bytes from the source computer or node.
•	Assemble received packets back to the actual data 
(its original form).
•	Sending /receiving packets In order (FIFO),no 
missing  packet and  no duplicate packets If packet is 
missed TCP is responsible to resend
•	If packet is missed ,TCP is responsible to resend
(Data can be lost in intermediate network )
•	If packet is duplicated,  TCP is responsible to 
truncate
•	Handle error.
In brief, TCP is a connection oriented (setting up and 
maintaining reliable connection) protocol responsible for 
correct delivery of data .

IP is responsible for moving (routing) packet of data from 
node to node using four byte destination address.

tcp protocol is part of transport layer .so basically it is
used to take care about the whole transmission of data from
source to destination.

ip is part of network layer .so it takes care for the packet
forwarding from source to destination by adding some header
details to original data

TCP/IP IS A SET OF RULES. WITHOUT TCP/IP WE CAN'T ABLE TO 
COMMUNICATE WITH ONE P.C TO ANOTHER. TCP/IP ----   TCP 
WORKS ON TRANSPORT LAYER & IP WORKS ON NETWORK LAYER. WITH 
THIS COMBINATION, PACKETS ARE TRANSFERRED SAFELY FROM 
SOURCE TO DESTINATION

Tcp is transmission protocol and ip is internet Protocol.
TCP is used for carrying the data from one place to another 
place and IP guide or identify  the path or it shows the 
path of the destination machine.

TCP IS RESPONSE FOR DATA. IP IS RESPONSE FOR LOGICAL ADDRESS