Use of Formula & Function in MS-Excel

Worksheet-2

Q1. Answer in one word:

a. How many rows and columns are there in a worksheet?

    ______________________________________________

b. Name the types of operators used in MS Excel.

    ______________________________________________

c. Which sign is used to start the formula?

    ______________________________________________

d. Which function returns the number of characters in a text string?

    ______________________________________________

e. Which function removes all non-printable characters from text?

    ______________________________________________

f. Which function repeats text a given number of times?

    ______________________________________________

g. Which function finds one text value within another?

    ______________________________________________

h. Which function formats a number and convert it into text?

  

    ______________________________________________

i. Which function converts a text argument into number?

   _______________________________________________

j.Which function joins several text items into one text item?

  _______________________________________________

Working of Hard Disk

Comp.Sci. Worksheet 1 (Class: VII)

Class-VII

Sub:Comp.Sci

Worksheet-1

Q1. Answer in one word/line:

a)     What are pixels?

______________________________________________________________________________________________________________________________

b)    What are platters?

__________________________________________________________________________________________________________________________

c)     Write difference between Pits and Lands.

           ____________________________________________________________________________________________________________________________

d)    Define System Unit.

           ____________________________________________________________________________________________________________________________

e)     Which part of Hard Disk can move a read-write head directly to the desired track?

__________________________________________________________________________________________________________________________

Q2.Write the full forms of the following:

a)     CRT                             ___________________

b)    LCD                             ___________________

c)     CD-ROM                     ___________________

d)    RAM                            ___________________

e)     RGB                             ___________________

f)      Pixels                           ___________________

Q3. Show diagrammatically the different types of printers with their examples.