Monday, May 28, 2018

LO2 Network and interconnection devices

Network devices

Workstation -  a computer intended for individual use that is faster and more capable than a personal computer and it is a standalone machine.

Function: It will perform a certain set of tasks like photo editing, video production or audio recording.


A network interface card (NIC) is a circuit board or card that is installed in a computer so that it can be connected to a network. 

Function: A network interface card provides the computer with a dedicated, full-time connection to a network. Personal computers and workstations on a local area network (LAN) typically contain a network interface card specifically designed for the LAN transmission technology 



Print
Feature
Function



Mail
Feature
Function



Web
Feature
Function



Proxy
Feature
Function

File
Feature
Function

Interconnection devices

Router
Purpose
Feature
Function


Switch
Purpose
Feature
Function




Wireless Access Point
Purpose
Feature
Function



References
Workstation
https://techterms.com/definition/workstation [Accessed on 29th May 2018]

Definition Workstation
https://searchmobilecomputing.techtarget.com/definition/workstation [Accessed on 29th May 2018]

Definition network interface card (NIC)
https://searchnetworking.techtarget.com/definition/network-interface-card [Accessed on 29th May 2018]

Bus network topology diagram

https://conceptdraw.com/a878c3/preview--Bus%20network%20topology%20diagram [Accessed on 29th May 2018]
3.6.4. Network Interface Cardhttps://informatics.buzdo.com/p480-network-card.htm [Accessed on 29th may 2018]

TP-Link Archer C7 AC1750 Wireless Dual Band Gigabit Router (V2)

https://www.pcmag.com/review/352074/tp-link-archer-c7-ac1750-wireless-dual-band-gigabit-router [Accessed on 29th May 2018]

Network Switch Diagram Template

https://www.lucidchart.com/pages/examples/network-diagram/network-switch-diagram-template [Accessed on 29th May 2018]

Wireless Networking Simplified: The Terms You Should Know

https://www.makeuseof.com/tag/wireless-networking-simplified-the-terms-you-should-know/ [Accessed on 29th May 2018]

How to use Google Cloud Print to make printing from Android a dream

https://www.techrepublic.com/article/pro-tip-use-google-cloud-print-to-make-printing-from-android-a-dream/ [Accessed on 29th May 2018]

Email Administrator's Guide

http://death2spam.com/docs/admin/index.html [Accessed on 29th May 2018]

Web Diagram Examples - Include conceptual website, web site map, web architecture.

https://www.edrawsoft.com/Web-Diagram-Examples.php [Accessed on 29th May 2018]

Sunday, May 6, 2018

Wireless Technologies

1. 802.11

- Use for Wireless Ethernet networks.



2. Infrared

- Infrared technology allowed computing devices to communicate via short-range wireless signals in the 1990s.

- Using IR, computers could transfer files and other digital data bidirectionally.



3. Bluetooh

Bluetooth is a radio communication technology that enables low-power, short distance wireless networking between phones, computers, and other network devices. 

Bluetooth technology was designed primarily to support networking of portable consumer devices and peripherals that run on batteries

- Example
  • Cell phones
  • Wireless headsets (including hands-free car kits)
  • Wireless keyboards
  • Printers
  • Wireless speakers
  • Computers
Two Bluetooth devices connect to each other by a process called pairing. When you press a button or select a menu option on the unit, a Bluetooth device initiates a new connection.




4. 3G

- It stands for 3rd Generation Mobile Telecommunications/Wireless (3G)

deliver quality multimedia to mobile devices by way of faster and easier wireless communications as well as “anytime, anywhere” services.

- There are two groups 3GPP and 3GPP2


Differences

802.11b
802.11g
802.11n


Saturday, May 5, 2018

Network Protocols & Standards

TCP

- It stands for Transmission Control Protocol
- TCP must ask permission between the sender and receiver to agree to communicate to send message
For example: YouTube
- when there is a connection, so it will connect, and otherwise, when there is no connection, so it become error.



IP

- It stands for Internet Protocol
- IP is a internet's language use to speak
- IP is identical throughout the world, by saying Malaysia can connect to Turkey




UDP
- It stands for for User DataGram Protocol
- UDP is different with TCP. Because UDP doesn't need permission, they just send the message straight away.
- UDP direct sending message




APPLETALK
- Made by Mac'Intosh
- there are two types: 1- Phase 1 is small network and 2- Phase 2 is large network



802.2
- It stands for IEEE 802.2 logical link control
- IEEE stands for institude of electrical and electronic enginerous
- It uses datalink layer of OSI model to run
- While 802.2 is the translator of the message coming in the datalink, so the translator can make the datalink understand





802.3
- Other name is Ethernet
- Normally uses fast Ethernet (100 MB/s). Example is Micronet
- When user uses more data rate, so it become expensive
- It used for devices by local area network product that define CSMA/CD



FDDI
- It stands for Fiber Distribute Data Interface
- It use two token rings.
- Each token ring do their own work but with opposite way
- During normal process, FDDI use one ring only which called PRIMARY.
- While the other ring is use to backup which called SECONDARY.



802.5
- This is the same like token ring
- It will take the token first before sending the message to its destination.




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