https://padlet.com/hkldnl06/3djvk1g8xd7azor8 Made with a taste for adventure en-us 2020-10-04 07:17:22 UTC 2026-03-01 18:41:56 UTC hello@padlet.com hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800500845 Internet technology 🖥📱🎮]]> 2020-10-04 07:22:10 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800500845 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800502324 2.1)Basic concept of network
i)Network *
Definition:
 -A collection of computers and devices which are connected together via communication devices & transmission media  to share resources.  
ii) Communication device
Defintion:
- any type of hardware capable of transmitting data, intruction and information  that connect  the sending device  and receiving device  to transmission media.  
Example:
Modem,hub,router, network card
iii) Transmission media
Definition :
-Consist of material  or substance  on which data, instruction or instruction travel.
2 types  : i)wired
                 ii)wireless  
 i) wired
    -twisted pair cable, coaxial cable,fiber optic       cable
ii) wireless 
    -infrared,microwaves,communication                 satellite]]> 2020-10-04 07:23:28 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800502324 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800905362 2.2)Network Architecture
i)Definition*
The configuration/design  of computers, devices, and media  on a network.  
ii)Types of network architecture
- peer-to-peer
- client / server  
  a)Peer-to-peer:
-network which each computer or mobile devices  have equal responsibility  & capabilities  in sharing hardware, data or information  with other computer  on a network.  
Advantage:
-easy & inexpensive to set up
-more reliable because failure of 1 computer   will not affect others.
Disadvantage:
-lack of security
-data recovery / backup very difficult
   b)Client/server:
-network  which one or more computers act as server  and other computer request services from server  via network.  
Advantage:
-better security and management of network
-data backup & recovery is easy since all data stored in server.
Disadvantage:
-high cost to set up & maintain the network
-less reliable because too depends on server




]]> 2020-10-04 15:18:50 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800905362 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800928436 2.2) Example:
Peer-to-peer                                    ]]> 2020-10-04 15:44:36 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800928436 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800932794 2.2) Example:
Client/Server

]]> 2020-10-04 15:48:44 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/800932794 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/801824771 2.3)Classification of network
-can be classified by 2
i)Local Area Network (LAN)        
ii)Wide Area Network (WAN)
Definition*
i)LAN
-A network  that connects computers  and device  in a limited geography area. (home, school ,office building)
ii) WAN 
-A network  that covers a large geographic area. (City, country, or the world)  ]]> 2020-10-05 04:20:53 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/801824771 hkldnl06 https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/882400273 -internet is a wordwide collection of network  that connect millions of bussiness, government agencies, educational institution and individual.  
 Advantage of internet 
-easy to communicate
-provide abundant information
-improve education
 Disadvantage of the internet 
-security issues
-social disconnect 
-theft of personal information 
Intranet
*Definition 
-private network  of an organization  which use internet technologies  to share organization's information  with its employees.  
*Accessibility
- only employees within an organization  are  allowed  to access the intranet.  
*Usage 
-share organization's information  or operation  with employees.  
*Example 
-internal network in college  that provides student's information.  
Extranet 
*Definition 
-private network  of an organization  that securely  share parts of organization's information  with its suppliers, vendors, partners, customers or otger organization. 
*Accessibility 
- limits access  to people outside company  such as suppliers, vendors, customers or other organization. 
*Usage
-share information  among bussiness partner  such as check status.  
*Example 
-package shipping company  that allows their customer  to access their private network  to print shipment bills.  ]]> 2020-11-02 14:25:08 UTC https://padlet.com/hkldnl06/3djvk1g8xd7azor8/wish/882400273