Difference between Client-Server Network & Peer-peer Network

Category	Client-Server network	Peer to peer network
Size	For medium and large network	For small network fewer than 10 computers.
Operating System	Needs a specific operating system such as Windows Server 2008.	Does not need a specific operating system.
Training	Needs training	Does not need training
Set up	More difficult to set up	Easy to set up

ADVANTAGES AND DISADVANTAGES OF NETWORK

ADVANTAGES	DISADVANTAGES
Easy Communication and Speed	Breakdowns and Possible Loss of Resources
Ability to Share Files, Data and Information	Expensive to Build
Sharing Hardware	Security Threats
Sharing Software	Bandwidth Issues
Security
Speed

WHAT IS TRANSMISSION MEDIA ?




TRANSMISSION MEDIA


Materials or substances capable of carrying one or more signals in a communications channel.

TWO TYPES OF TRANSMISSION MEDIA ;


- Physical Transmission Media
- Wireless Transmission Media

PHYSICAL TRANSMISSION MEDIA

WIRELESS TRANSMISSION MEDIA

      

PHYSICAL TRANSMISSION MEDIA	EXPLANATION
Twisted Pair Cable	Twisted-pair cable consists of one or more twisted-pair wires bundled together.
Coaxile Cable	Consists of a single copper wire surrounded by at least three layers ; an insulating material , a woven or braided metal and a plastic outer coating
Fibre Optic Cabl	"A transmission media that uses glass or plastic fiber to carry light (lasersignals.

Wireless Transmission  Media	Explanation
Infrared	Infrared (IR) is a wireless transmission medium that sends signals using infrared light waves.
Broadcast radio	Distributes radio signals through the air over long distances
Cellular Radio	Used widely for mobile communications, specifically wireless modems and cell phones
Microwave	Microwaves are radio waves that provide a high-speed signal transmission.
Communication Satellite	Receives microwave signals from an earth-based station, amplifies (strengthens) the signals, and broadcasts the signals back over a wide area

WHAT IS COMMUNICATIONS DEVICES ? 


A communications device is any type of hardware capable of transmitting data, instructions, and information between a sending device and a receiving device.

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Type of communication devices ;

• Dial-up modem

A communications device that can convert digital signals to analog signals and analog signals to digital signals, so that data can travel along an analog telephone line.

• Digital modem

A communications device that sends and receives data and information to and from a digital line.

• Wireless modem

Some mobile users have a wireless modem that uses the cell phone network to connect to the Internet wirelessly from a notebook computer, a smart phone, or other mobile device.

• Network card

Sometimes called a network interface card, is a communications device that enables a computer or device that does not have built-in networking capability to access a network.

• Wireless Assess Point

A central communications device that allows computers and devices to transfer data wirelessly among themselves or to transfer data wirelessly to a wired network .

• Router

A communications device that connects multiple computers or other routers together and transmits data to its correct destination on a network.

• Switch

A connection device similar to a hub but more sophisticated, including functionality that allows it to control and manage data transmissions.

• Hub

A connection device that allows multiple connections to the network.

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WHAT IS NETWORK ?

DEFINITION OF NETWORK ?


A network is a collection of computers and devices connected together via communications devices and transmission media.



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APPLICATIONS OF  NETWORK	EXPLANATION
Resources sharing	Hardware ( computing resources, disks, printers )
	Software ( applications software )
Information sharing	Easy accessibility from anywhere (files, databases)
	Search capability ( www )
Communications	Email
	Message broadcast

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Networks in different ways based on ;

• Transmission media
• Network size
• Management method
• Topology

INTRODUCTION TO SCIENCE COMPUTER !

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WELCOME TO FARAHSTARRR  👄

Hello , my name is Farah and i am a student at KMPh session 17/18 ( now ) . These blog aren't for everyone , only few understand . Not  everyone likes me, but not everyone matters. The purpose of the blog is actually for my assignment ( Science Computer ) and also i will try my best to give you an information about this subject . The main topic i want to focus on is abaout Science Computer 👄 #KMPhPerform !