Information About Internet

The Internet is named after the Internet Protocol, the standard communications protocol used by every computer on the Internet.

The main Internet applications are described in the chapters accessible through the home page, while this chapter describes the underlying Internet network itself. The Internet can powerfully leverage your ability to find, manage, and share information.

Never before in human history has such a valuable resource been available to so many people at such little cost. You are incredibly lucky.

PROGRAMMING A COMPUTER

Computer programming is the preparation and writing of details instructions is  for a computer.These instructions tell the computer What data to use and wht sequences of operation to perform with the data.

A computer cannot work directly a Program Written in the form of programming languages.the instructions
must be translated in to a machine languagecomposed of binary digits. These digits represents operation codes,memory addresses,and varius symbols,such as plus(+) and minus(-) sign.

Machine Language is Known as low Level Language.

FLOW CHART

The diagramtically representation of various steps taken to solve a given problem is called a Flow Chart.

In a flow chart symbols are used to create a Flow chart.

                                                           

Rules

1.The symbol should be used as given in the symbol table only.

2.The arrows should never be ignored because these arrows represent the direction of
 flow of control in the problem.

3. The Direction of Flow should be madeeither from left from left to right or from top to bottom.

4.The Flow lines must not Cross each other. 

BASIC (Alogrithm & Flow Chart)

Flow chart means,writing down the steps to do a certain job.

You go to school every boy.

The whole Flow chart of going to school  is in the memory of your brain.

Lets us try to write it down.

1.Wake up early in the morning.

2.Go to the Bathroom.

3.Sit on the commode.

4.Stand against the washbasin

5.Brush your teeth.

6.Open the shower take off your cloths.

7.Take a bath.

8.Wipe off with a towel.

9.Wear your uniform.

10.Wear your uniform.

11.Checking your bag.

12.Eat your breakfast.

13.Leave home for school.

Constants

Every computer program user different commands keywords,constants and Variables.In this part we will choose we will discuss about Constants and variables.

Constants
Constants are actual value of numbers,characters and their combinations which can be used in BASIC language.

There are two types:

1.Numeric constants 
2.String constants

 Numeric Constants:
Its a positive or negative fixed number that can be assigned to a variable.

Example: 511-1976+25.90


10 Let A=511     
20 Let S=1976    
30 PRINT A+B  


In this statement 511 and 1976 are NUMERIC CONSTANTS  



STRING CONSTANTS
we can write any  combination of characters .enclosed in quotes in string constants.

EXAMPLE:   LAHORE
10 LET A= 1947 
20 LET BS= PAKISTAN
30 PRINT B$was created in A 

Here 1947 is a Numeric Constant and Pakistan is a string constant.  
 

Web Browser

Internet Explorer Web Browser  

Internet Explorer makes it easier to get the most from the world wide web,whether you are searching for new information or browsing your favorite websites.built-in intelligence technology can save you time for completing routine we tasks such as automatically completing web addresses and forms for you,and automatically detecting you network and connections your network and network connections status.

The easiest way to get around the web

And if you are starting typing frequently used web addresses in database appears that you can choose from.
and if web-pages is wrong , Internet Explorer can search search for you similar addresses to try to find a match.
Search for websites by clicking the search button on the tool bar.Then in the search bar ,type a word or a phrase that describes what you are looking for.when your search results appear, you can view the individual
web pages without losing  your list of search  results.
Internet explorer can automatically  take you a to the site that mostly likely matches with what you are searching  for ,listing other likely sites for you.
 Choose  from a wide  variety of music and songs and videos and talk in the radio stations,and add them to your list where you want to add them.

Safety in Browsing

You can ,by clicking on the content advisor,screen out objectionable content.
By using security zones, you can set different levels of security for different areas of the web help to protect you computer.
 

History of computers

Net topics
safety on the Internet 

The Internet is full of  wonderful places and we can  create many positive experiences.vast amounts of information is available at the click of a mouse.
"Cyberspace",however is a part of "real life" and there is good reason to be cautious here. the same dangers that exist in "real life"exist on the Internet also.
we all learn  what a part of town in the "bad part of town" and avoid it if we want to. the holds true with the Internet.
Just as we encounter good and bad people on the street,we will encounter good people and bad people on line in the Internet.usually exercise common sense , children's need guidance.