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Wednesday, July 14, 2010

printing a document

the document what you have pregared can be printed. to print the docoment follow these stse steps.
a . click the file menu.
b. select print option. the print dialog box appears.
c. select following under page range
- all for printing all the page of the document.
-courrent page to print the wrrently active page.
-page s to specify the page number like 1-5 to print from page 1 to page 5 you will specify page in teat box next to pages.

forming a word document

forming means changing the appearance of a document. to improve the apperance of the document you can change font size style, line spacing., alinnent of paragraph,etc .
1 . changing the alignment of a paragraph.
when a text is entered in ms- word, it automaticaly appears on the left side of the document. but you can change the position of the text to the right or center. Alighment refers to the positining text on the page in four be positioned on a page in four different ways. the different align ments of paragraph are.

forming a word d0cument

maicrosoft word

1 . interoduction to microsoft word
A wird processing is a program that helps you to create a program and save dowments for the future use microsoft is a popular word prosessing program document having a dingle page or many pages like books. microsoft word provides allthe facilities that are reqaired to prepre any kind of document. starting microsoft word to load microsoft word, follow these steps .
a. click on start button
b. point to all programs
c. point to microsoft office, and select microsoft wort. the location of microsoft you may find microsoft word just after pointing to all programs.
you can load microsoft word in anther way as.

Tuesday, July 13, 2010

computer language

you all know that a computer is electronic device that needs instructions to do any task. it cannot do anything on its own thinking. the means that whenever you want computer to do what you want it to, you must give it a number of instructiona. since the computer only understands language of 1s and 0s i.e. binary number system,

history of computers

1. Acomputer, what you see nowadays around you, were not like this in the earliest days. when people learned to con't and do calculationa, they started to search fast counting devices in the earliest time. the need of fast counting and calculation device in the earliest time led to the development of computers started just from the abecas.
2. abacus
the abacus is the firsttruecom puting device ddeveloped in china about 3000 years ago. it was made up a wooden frame is divided in to two parts heaven and in earth has five beads. it is based on the decimal number systems the first vertical ber is for ones, the second for tens. and so on

BINARY COD IN COMPUTER

in the computer system , o stands for- carrent or a low vollage while 1 indicates ahanging the data in terms of os and 1 s is called binary conversion. and the notation obiained as result of this conversion is called biniary cod.


how many different comblnations canyou canyou from using two differet wlors of balls cred and blue in a groupm of flur? the picture below shows the some possible combinations in a group of

bits and bytes

inthe previous chapter you have learned that a computer can handle large volume of data and carry out complex calculations at on at on amaring apeed. but you will be surprisad to know on just two electrical conditions. a whether the current is high or low how do these two either or conditions
it is possible by a number - system where there are just two digits 1 and 0 . the base two number system is binary number system

Monday, July 12, 2010

maltimedia

  • the word multi- media is made up of two words ; 'multi' and media' the word'multi' refers to more then one and the world'media refers to the way through which one can express information. there are many differention media to communication. of inforemation are text audio video pictures and animation. when you describe a dinosaur to a person using only audio nedium the person will not get clear view about the dinosaur. way if you describe something using only plain texts then the desceiptionmay not be so effective and understandable.

input asnd outputy divices

A computer system needs both input and output divices. input divices help you to input data and instructions whereas output divices display the data, result of processing or any message from a computer.
1. input divices
computer needs data and instruction to work on. to input data and instructions you need input divices. there are many different input divices. keyboard and mouse are the two common input devices are microphone, digital camera, joystick,scanner, light pen, etc
2.keyboard
A keyboard is an input divec used for entering data like letters, texts,numbers, symoks and instructions.a keyboard contains a number of keys marked with alphabets, numbers, and some pther characters.a computer understands only binary codes. so, when you press a key on the keyboard ,the keyboard generates the related binary code and sends to the computer.

introduction to personal computer

a personal comouter is an information processing maching machine that accepts data and instructions, processes the data according to the instructions and produces useful information.the computer stores data, instructions and information in the storage devices for the future uses.



WORKING OF A COMPUTER

the computer consists of a number of interrelated components that work together to convert data into information in a step-by-step process.every computer performs three mejor tasks. 1 input 2 progessing 3 output.