Announcement, massage, personal letter

Announcement

1. a formal public statement 

the government made an announcement about changes in the drug war|a declaration of independence

2. a public statement containing information about an event that has happened or is going to happen 

the announcement appeared in the local newspaper|the promulgation was written in English

3. The act of announcing, or giving notice; that which announces; proclamation 

 Example of Announcement:
To All the teachers and staff of SMKN 1 Denpasar
A one-day meeting will be held this week :
When  : Thuesday, 9th march 2012 at 10 a.m to 3p.m
Where : Teacher's Room
Topic  : National Examination preparation
Due the importance of the meeting,please be panctual.Bring yout ideas;bring your sugestions to make our students succesful in this examination.

The head of the national examination committee
Wayankatel, S.Pd .M.Pd.

Short Message Service (SMS) is a text messaging service component of phone, web, or mobile communication systems, using standardized communication protocols that allow the exchange of short text messages between fixed line or mobile phone devices. 

   Example

Personal letter is a type of letter which provides communication between a small number of people, usually two. There are many types of personal letters and they are written for a wide variety of reasons :
-One person wishes to attain information from an individual or a business.
-One person wishes to tell somebody about themselves, as in pen pals.
-One person wishes to present to an individual or a business a social note, such as a thank-you     or a congratulation
-One person wishes to communicate with an acquaintance - friend or family, for example in   order to maintain and reinforce the bond between them.