SS2 Third Term Computer Studies Lesson Note – Electronic Mail Services II

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WEEK 10                                                      

TOPIC:  ELECTRONIC MAIL (E-mail) SERVICES (Cont’d)

CONTENT: 

1. Features in an e-mail address
2. Differences between e-mail and website address feature
3. Definition and Steps involved in Chatting

Sub-Topic 1:  FEATURES IN AN E-MAIL ADDRESS

E-mail Addresses: an e-mail address is a combination of a user name and a domain name that identifies a user so he or she can receive internet e-mail. A user name is a unique combination of characters such as alphabets and numbers that identifies a specific user. It is unique addresses that are used to locate and identify someone’s email account on the internet. Every e-mail user has his or her unique address. Examples of an e-mail address are: folowoseledeborah@gmail.com, odatuwafavour1@hotmail.com

Internet e-mail addresses usually have a form such as “editor@encarta.microsoft.com” –where ‘editor ‘is the e-mail account name and encarta.microsoft.com is the domain identity of the computer hosting the account.

An email address is made up of the following four features;

(i)        The Username:  This is the first part of an email address, the name of the person or organization who owns the email address.

(ii)       The @ (at) sign:  This sign is used to link the username and the website that owns it.

(iii)      Host:  The name of the organization that maintains or owns the mail service, e.g Yahoo, Google, Hotmail, etc.

(iv)      Site type or Domain:  The website is registered in a domain with an extension. The extension is determined by the type of entity that owns the website. The table below gives some of the commonest domain names:

Domain	Site’s type or Organisation
.edu	Educational institutions
.com	Commercial sites
‘org	Organisations’ site
.mil	US military site
.gov	Government site
.net	Network resources
.int	International organizations like UN, WHO
.ac	Academic resources

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