The Internet

Internet is a network of all computers all over the world.

To connect to the internet you need 4 things  :

1. A computer system
2. A modem
3. A telephone line
4. An internet service provider ( In short ISP)

What is a modem?

Is a hardware which the computer is connected to the internet via the telephone lines / cable.
Converts from digital signals to analogue signals .

What is an ISP?

An internet service provider is a company with whom anybody  wanting to connect to  the internet has to be able to  do so. Eg of an ISP are go, onvol , nextgen and much more.

What is a web browser?

world wide web is the most popular part of the internet. Contains many information. When you search information you use a special programm called web browser. It displays web pages from any computer on the web . |The browser converts the special HTML ( HyperText Markup Language ) codes that are used to create a web page .

Type of web browser - Mozilla fire fox.

 

 

 

What is a URL?

 

It's short word for uniform resource locator



 

 

What is a search engine?

 

 

With a search engine you can type keywords and it will search through all the webpages around the world and give you a list of sites (hyperlinks) that match it so that you can jump directly to that page .

 

What is e mail?

 

Short for electronic mail

 

 



 



Spreadsheets

 

Hi so today we have another topic to discuss about . The topic is called spreadsheets.


It is a program that is used to procesd number and calculations  . It is mainly used for automatic calculations.

A cell may contain 3 different terms called : Label-  a heading or titled for a row / column

Value -a number a formula used to perform different calculations

Formula - used to perform calculations on cells containing values.

IMPORTANT TOOLS TO REMEMBER !! 

Insert rows and coloums - a new coloumn is inserted in front of the coloumn that is highlighted.

http://spreadsheets.about.com/od/exceltips/qt/add_columns.htm this is a link to show you how to enter a new coloumn

Formulas- are the multiplication, division, addition and subtraction . Signs +-/*

Functions -  saves the user to write such long formulas . These are :-

• Sum - adds up the values in a group of values
• Min - find  the smallest number in a group of values
• Max- to find the largest value in a group of cells
• Average- calculate average value
• count - counts the number of cells that contains a number

Sorting- data in coloumns can be order either ascending order or descending order .