Amma learning computer Lesson 9

Lesson no.9....,,,
Good morning teacher ...What is a key board and how to input data into computer?

Yes..Keyboard is an input device...

What is input?

Any data entered into computer..containing letters,numerals,and other functions,

It contains all letter a to z....,numbers 1,2,3,4,5,6,7,8,9,0
It contains. Marks like ,  .?!@'$,&,()"etc.....
Computer keyboard allows numerical work as additions,subtraction,multiplication,division,etc using function plus,minus,etc....
Teacher what are block letters?
They are letters in black or capital form.In keyboard if you press cap and type letters the letters will be in capital letters
Similarly you have many useful keys like home,end,stop,shift,alter,right arrow,left arrow,up arrow,downarrow,etc all these.
 you can use
Enter key is important for opening or starting any operation.
Esc key at left hand top allows you to escape from one screen.
You can use ctrlA,copy and paste messages all these we shall learn later,
Thank you teacher.
Teacher what are output devices?
Flash drive or pen drive or Hard-drive these are all output devices where you can store data fro computer
Thank you teacher...