English for Computer Unit 5 Network

1. Unit 5 Network
Content
* Network
* Internet
* Definition for Internet
* Domain name
*Website
* URL
* Facebook
* How to Use Online dictionary

2. Unit 5 Network
Network
A group of interconnected computers and
peripherals that is capable of sharing
software and hardware resources between
many users. The internet is a global network
of networes. There are many types of
computer network including LAN, WAN, CAN,
MAN and HAN.

3. Unit 5 Network
Network
LAN - Stands for "Local Area Network". LAN is a
computer network limited to a small area.
WAN – Stands for “wide-area network”. WAN is
similar to a LAN, but it's a lot bigger. WANs are not
limited to a single location.
CAN – Stands for “campus-area network”. CAN is a
computer network that links the buildings and
consists of two or more LANs within the limited
geographical area.

4. Unit 5 Network
Network
MAN – Stands for “Metropolitan Area Network”.
MAN is a series of LANs that are interconnected
through various means in a metropolitan area such as
a city and its suburbs.
HAN – Stands for “home-area network”. A HAN is
a network contained within a user's home.

5. Unit 5 Network
Internet
System connecting computers around the world using a common
Software Protocol for transmitting and receiving data.
This protocol is known as TCP/IP, which stands for
Transmission Control Protocol/Internet Protocol.
There are a variety of ways to access the Internet.
Most online services offer access to some Internet services. It
is also possible to gain access through a commercial Internet
Service Provider (ISP)

6. Unit 5 Network
Internet
The Internet is not synonymous with World Wide Web.
It connects millions of computers together globally, forming a
network in which any computer can communicate with any other
computer as long as they are both connected to the Internet.
The World Wide Web, or simply Web, is a way of accessing
information over the medium of the Internet. It is an
information-sharing model that is built on top of the Internet.

7. Unit 5 Network
What is Domain name?
They are used to identify one or more IP address. For easy
remember. There are 2 types of Domain name as follow:
Domain 2 levels – Domain name . type of Domain
Domain 3 levels – Domain name . type of Domain . Country
Domain 2 levels consist of www . Domain name . type of Domain

8. Unit 5 Network
What is Domain name?
Domain 2 levels consist of www . Domain name . type of
Domain such as www.google.com
For example:
.gov - Government agencies
.edu - Educational institutions
.org - Organizations (nonprofit)
.mil - Military
.com - Commercial business
.net - Network organizations
.int - International

9. Unit 5 Network
What is Domain name?
Domain 3 levels consist of www . Domain name . type of
Domain . country such as http://tdc.thailis.or.th
For example:
.co - Commercial business
.ac - Academic
.go - Government agencies
.net - Network organizations
.or - Organizations (nonprofit)

10. Unit 5 Network
What is Domain name?
And example for countries:
.ca - Canada
.th – Thailand
.cn – China
.uk - United Kingdom
.jp – Japan
.au - Austria

11. Unit 5 Network
URL
URL – Stands for “uniform resource locator”. It’s
used to call Internet address.
URL including a Protocol, Sub-domain, Domain and
Domain suffix, Directories and Webpage.

12. Unit 5 Network
URL
Protocol
: A standard procedure for regulating data transmis
sion between
computers. We used to the word “http”. It stand
for Hyper Text Transfer Protocol.
Domain :
A group of networked computers that share a commo
n communications address.
Sub-domain : A more specific portion of a domain
name. Sub-domains are used to divide up Web
domains without registering a new domain name.

13. Unit 5 Network
URL
Directories :
n organizational unit for files that reside on a hard di
sk or other
Storage device. Also called folder.
Domain suffix: The last part of a domain name and is
often referred to as a "top-level domain“
Webpage:
A document on the World Wide Web, consisting of a
hypertext file and any related files forscripts and gr
aphics, and often hyperlinked to other documents on
the website.

14. Unit 5 Network
Website
A set of interconnected web pages.
Generally located on the same server,
and prepared and maintained as a collection
of information by a person, group or organization.
A website includs a homepage and web pages.

15. Unit 5 Network
Practice a. Address Bar b.Scroll Bar c.Tool Bar
d. Status Bar e.Menu Bar f.Logo

16. Unit 5 Network
Practice a. Address Bar 4 b.Scroll Bar 6 c.Tool Bar 3
d. Status Bar 7 e.Menu Bar 2 f.Logo 5

17. Unit 5 Network
How to Use Online Dictionary
1. Type www.thefreedictionary.com at URL then enter. It will
appear webpage as below.

18. Unit 5 Network
How to Use Online Dictionary
2. Type vocabulary that you want to search such as “hardware” then enter
or click at “ > “.

19. Unit 5 Network
How to Use Online Dictionary
3. The meaning of the vocabulary that you type to search will appear. In
addition, when you click at speaker icons. There will be the sound of that
vocabulary.