Definition of networks and their types

 

 

 

What are the types of networks

 

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It is the connection of two or more computer devices with

 each other via cables, or via wireless Wi-Fi, and the size 

of the network can range from two devices to a large and 

complex network of devices.

The network is used to send information in both directions,

 by instant messaging, by e-mail, or through shared storage

 devices. Networks come in many types,

Below is an explanation for that

How many types of computer networks?

What are the fastest types of networks?

What is the largest network in the world?

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local network

Defines the local network

 It is a group of computers connected to each other within

 a limited geographical area of ​​an organization, where the 

data transfer speed through it can reach 10 megabits per

 second, or 1 gigabyte per second, and the number of its 

users may reach about 100-1000 users.

 It is worth noting that local networks can be classified 

according to the services they provide 

into two categories:

What are the types of local networks?

analog network

; Where communication takes place between computers dire

ctly without the need for a central device because they are

 all equivalent, and the server / beneficiary network

; The mainframe computer provides network services to

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users' devices.

 wide web

Defines the wide area network

It is a set of interconnected local networks with each other 

across large geographical areas of an independent 

organization, such as:

 Cities, countries, or continents, and the speed between the

 local networks that make up the wide network is usually 

slower than the speed between the computers that make up

 the local network, and an independent organization such 

as a company or government often owns these networks.

Regional network

(MAN) connects the regional network (English

 Metropolitan Area Networks)

A group of local networks close to each other within tens 

of kilometers at high speed, so it enables communication 

between two distant networks even if they are from the 

same local network.

 They are also connected to each other through adapters

, or prompts

 They are connected to each other by high-speed cables, 

such as: fiber optic cables

 

fast ethernet  

What are the types of personal networks?

 personal network

 (PAN)

 The personal network is created:

(Personal Area Network)

 Especially on demand, when there is a need for 

communication between two or more devices, as they 

are usually wireless; Where it can be used between

 devices owned by two different parties, or between two

 devices owned by one person, such as: a personal digital 

assistant device

(PDA)

, mobile phone, or laptop computer. It is usually described 

as short-range, not exceeding 10 meters, and examples

 include: the wireless Bluetooth network, which was 

designed as an alternative technology to the serial cable.

 (USB)

Which is used by many peripheral devices today, it has 

been relying on Bluetooth technology to communicate

 between them. Wireless local network

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(WLAN)

 The wireless local area network

(Wireless Local Area Network)

 The same principle as the local network

 aforementioned, except that it uses the wireless network, 

which is Wi-Fi

 wan wifi 

(WI-FI)

 in its operation, rather than physical cables to connect to

 the network.

Types of communication networks

Types of wireless networks

Intranet Limited

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(CAN) Limited intranet pool

(Campus Area Network)

 Between universities and colleges spread out in the same 

area within one common, fast, and high-privacy network,

 so it is similar in its work to a network

With the slight difference in size, subscribers can connect 

to it via (Wi-Fi), (hotspots), or (Ethernet technology).

Types of Internet Networks

Types of computer networks

Types of networks in terms of connectivity

. Storage Network (SAN) is characterized as a storage

 network

High speed that links shared pools of storage devices

 together to several servers, rather than to a network

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 (LAN), or network

 (WAN), it can be accessed in the same way as the drive

connected to a server.

passive optical local area network

(POLAN)

  passive optical local area network

(Passive Optical Local Area Network)

 (POLAN) technology

 With Toslink to overcome concerns about supporting

 protocols

(Ethernet)

 In conventional and network applications, it uses two lines

 to split the signal coming from a single single fiber optic

 cable into multiple signals to serve multiple users and 

devices.

 Enterprise network

 wan internet 

 (EPN)

  The corporate network

(Enterprise Private Network)

By connecting their computers with each other, through 

one independent network with high security and privacy,

 which in turn belongs to one company. Virtual Private

 Network

(VPN)

 With the increasing possibility of sensitive information being stolen and intercepted, and exposed to electronic attacks, the Virtual Private Network came:

(Virtual Private Network)

 To create a secure tunnel that encapsulates and encrypts 

the data passing through it, such as an address

 (IP)

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, browsing history, and travel plans when connected to the 

Internet.

Importance of Computer Networks:

 The computer network is no less important than other 

networks.

 The following are the importance of computer networks:

 Sharing data The user can access the data on the World 

Wide Web and share his data with another person, such as

 sharing tax files with the tax department without having to

 go to the department's headquarters in person. Sharing 

devices Computer networks provide the ability to share

 devices such as a printer; And the scanner without the need to connect it to each computer separately, which means more flexibility in work, and saving in the cost of devices attached to the computer.

 Sharing software especially for clients connected via 

computer networks.

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User interaction through what networks provide to users 

of chat programs such as e-mail, newsgroups, video 

platforms, and many others, as they allow users to interact

 with each other across distant geographical areas.

 Remote play is another distinctive feature of computer 

networks, as it provides the ability to play remotely with 

any other player located in a different geographical area.

 Voice over Internet Protocol networks provide the ability

 to make phone calls over a protocol

(IP)

 instead of using a protocol

(PSTN)

. Data Protection Since all Internet users have access to

 the user's private data, the network has provided a firewall

 feature

 dna cisco

(FIRE WALL)

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To protect confidential data from hackers and intruders.

With my best wishes