Page 16 - TP_iPlus_V2.1_Class5
P. 16

Smartphone

                  •  A smartphone is a mobile phone that can be used as a computer also.
                  •  It is smaller in size than a tablet and can be held in a hand.
                  •  It has a touchscreen.

                  •  It is used to make calls, send SMS, play games, watch videos, click pictures
                     and do a lot of things.


                     Info Byte
                      The original name of Windows was Interface Manager.




                   i +   CHARACTERISTICS OF A COMPUTER
                  A computer has several characteristics. Some of them are explained here.

                  •   Speed: A computer can process millions  of instructions in seconds. The same
                     calculation that would have taken hours and days to complete, can now be completed
                     in a few seconds using a computer. The speed a computer is calculated in terms of
                     MIPS (Millions of Instructions Per Second).
                  •   Accuracy: A computer  provides  a  high degree  of accuracy.  Every  calculation  is

                     performed with the same level of precision every time.
                  •   Diligence: A computer can work for hours without any breaks or boredom. It does not
                     get tired.

                  •   Storage capacity: A computer can store a very large amount of data. You have many
                     storage devices such as the CD, DVD, flash drive, etc. to store your data.
                  •   Versatility: A computers can be used to perform different types of tasks. At one point
                     of time, you can type a document, the next moment you can listen to a song or watch
                     a video.

                  •   Compactness: With regular  advancements in technology,  the computer size  is
                     decreasing.

                  •   Reliability: Computer does not make mistakes. If the input is correct, then the computer
                     always gives the relevant answer to the input.
                  •   Power of remembering: The data stored in the computer can be recalled at any time.



                   i +   LIMITATIONS OF A COMPUTER

                  A computer is a versatile machine and performs multiple functions, but it has the following
                  limitations:
                  •   Lack of decision-making ability: A computer does not  have a brain like human
                     beings. It cannot take a decision on its own. It can only perform the tasks that are
                     instructed by human being.




                    14
                         iPlus (Ver. 2.1)-V
   11   12   13   14   15   16   17   18   19   20   21