COMPUTER NETWORKING
COMPUTER NETWORKING
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Computer Network
Computer Network
A Computer network is two or more connected computers to share data or/and resources.
Examples of Computers:
Examples of Computers:
Personal Computer
Laptop Computer
Tablet Computer
Server Computer
Smart Phone
Computer Networking Vocab:
Computer Networking Vocab:
Computer Network
Transmission Media
Ethernet Network
Wireless Network
Modulation & Demodulation
Router & Switch and Access point
LAN & WAN Networks
NIC Card
Networked & Standalone Computer
Data & Information
TCP/IP
mbps
HTTP & HTTPS
Computer Network Components:
Computer Network Components:
The computers (two or more)
Connection Device
Transmission Media
Communication Protocol
NIC Cards
Types of Computer Networks:
Types of Computer Networks:
Ethernet Network
Wireless Network
Computer Network Connection Devices:
Computer Network Connection Devices:
Switch
Router
Modem
Access Point WAP
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Data Communication
Data Communication
The exchange of data between two devices through a transmission medium is called Data Communication. The data is exchanged in the form of 0's and 1's. The transmission medium used is wire cable or a wireless signal. For data communication to occur, the communication device must be a part of a communication system. Data Communication has two types - Local and Remote which are discussed below:
Data Communication: Local
Data Communication: Local
Local communication takes place when the communicating devices are in the same geographical area, same building, or face-to-face etc.
Data Communication: Remote
Data Communication: Remote
Remote communication takes place over a distance i.e. the devices are farther. The effectiveness of a data communication can be measured through the following features :
Delivery: Delivery should be done to the correct destination.
Timeliness: Delivery should be on time.
Accuracy: Data delivered should be accurate.
Components of Data Communication
Components of Data Communication
Message: It is the information to be delivered.
Sender: Sender is the person who is sending the message.
Receiver: Receiver is the person to whom the message is being sent to.
Medium: It is the medium through which the message is sent. For example: A Modem.
Protocol: These are some set of rules which govern data communication.
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