Sunday, June 21, 2009

english

Here are the basic rules for when to use "A, An or The":

  • a = indefinite article (not a specific object, one of a number of the same objects) with consonants
    Eric has a dog.
    Gregory works in a factory.
  • an = indefinite article (not a specific object, one of a number of the same objects) with vowels (a,e,i,o,u)
    Can I have an apple?
    Donata is an English teacher.
  • the = definite article (a specific object that both the person speaking and the listener know)
    The car over there is fast.
    The teacher is very good, isn't he?
  • The first time you speak of something use "a or an", the next time you repeat that object use "the".
    I live in a house. The house is quite old and has two bedrooms.
    I ate in a Vietnamese restaurant. The restaurant was not very clean.
  • DO NOT use an article with countries, states, counties or provinces, lakes and mountains except when the country is a collection of states such as "The United States".
    My uncle lives in Cumbria near Lake Windermere.
    They live in Bristol.
  • Use an article with bodies of water, oceans and seas -
    I live on a small island in the Baltic Sea.
  • DO NOT use an article when you are speaking about things in general
    I like Indian tea.
    Simon likes reading books about linguistics.
  • DO NOT use an article when you are speaking about meals, places, and transport
    He has breakfast at home.
    I go to university.
    Magda comes to work by taxi.

Wednesday, June 10, 2009

Must read

1. Must read about vlan 
3. dos attack
4. sack (TCP) v v imp
5. window scal factor

Thursday, June 4, 2009

public key encryption

1. what is "public key encryption" ?