Data File Handling — Computer Science STD 12 Science — Question

Differentiate between packet switching over message switching? 

Write the function to update() to accept the values as parameter and update the record according to the passed values. Assuming that values exist in the table.

Write a program that reads a string and print and count the Upper case characters, Lower case characters and
other characters.

Differentiate between packet switching over message switching?        

The data is about Time devoted by a student in various subject subjects = 'English', 'Physics', 'Chemistry', 'Mathematics', 'Comp. Sci.' time (in hours) = 0.3, 1.5, 1.5, 2, 0.4 Write a python program to draw the PIE chart for the above data. Use hexadecimal colour code, and subject chemistry is exploded value.

Which protocol helps us to browse through web pages using internet browsers? Name any one internet browser.       

Write function insert() to insert the new row in table emp. The function will take the values as parameter.

Write a function Display() which do not accept any parameter and return none.

What is the purpose of Modem in network?

Write a user defined function arrangelements(X),that accepts a list X of integers and sets all the negative elements to the left and all positive elements to the right of the list.

For example:
if L =[1,-2,3,4,-5,7] ,
Then the output should be: [-2,-5,3,4,7]