1st Class

             Automation   Internal works of a computer is done automatically. Once the sets of instructions is fed into the computer's memory, the CPU (Central Processing  Unit) of the computer follows the instructions till the program is completed, without the need for human involvement.                

• There are three basic parts of computer
• These are input, output and central processing unit.
• Central processing unit is also known as the brain of the computer    

   

• Monitor: This is the visual screen.
• Key board: this is the input device which is mainly used for text writing  

    more...

             Tirelessness         It never gets tired. Computer is free from problems like exhaustion, lack of concentration, confusion, etc., just unlike the human beings.      

           Accuracy   It never makes mistakes. The degree of accuracy of the computer is very high. Errors can occur in computerized system also but most of them occur due to human mistakes rather than technical problems of the computer.  

           Speed        A computer can perform the task fastly without making any mistakes. It executes more than thousands instruction within a few seconds. It processes the job within a short period of time that a human being will take several days or months to do the same job.    

           What is a Computer?   (1)  Look at the given pictures. These all are natural things.                                                                                                                                                                                                                                   These all are man made things.                                                                                                                                              We call them as "Machines" These Machines work/run with the help of electricity     (2) Hello kids!!! Have you more...

       Transport   We all need to go to different places. Sometimes these places are far away. So to go to these places we use transport. For example, if our school is far from home, we go to school by bus. Here, bus is the means of transport for going to school. The means of transport may be divided into three broad categories. These are: (i) Land transport (ii) Air transport (iii) Water transport Land Transport The means of transport that are used on land is known as land transport. There are various types of land transport.                                                          Bullock cart                                         more...

       Communication   We use various means of transport to meet our friends and relatives. But sometimes we are not in a position to visit and meet them. In that case, means of communication helps us to keep contact with them, by sending and receiving messages.                                                                                                          There are various means of communication. These are:   Telephone Mobile phone Letter Telegram E-mails etc.  

      Parts of the Human Body   See the picture of the human body and the name of its parts:                                   Labeled Human Body      Look at the following parts of our body and their functions: Eye                                         -              To see Hand                                     -              To work Fingers of hand                  -              To write Legs                                       -             To move and stand Mouth                                    -              To eat Nose                                      -              To smell and breath Lips                                        -              To smile Teeth                                    -                To chew food items Ear                                          -              To hear       Face is located at which part of the human body? (a) Leg                          more...

     Introduction Environment is the surrounding in which we live in.       My Family and Relatives We all live in a house with our father, mother, brother and sister. Our parents, brother and sister make our family.   Family may be big and small.   In a small family, there are parents and one or two children. In a big family, there are parents, one or two brother or sister, grandfather and grandmother live together. Again, in some families not only parents and children, but also their uncle, aunt their children along with grand parents live together. Such family is called a joint family. All the members of a family generally have common surname. Brothers of our father are called as uncle. Brothers of our mother is known as maternal uncle. more...

   Thu Sun   Like water and air, the Sun is also a natural source of energy.

• The Sun is spherical in shape.
• It is the in center of our solar system.
• It is much larger than the Earth and the Moon.
• It is the ultimate source of energy.
• Life cannot be possible without the Sun.
• Plants use solar energy for making their food.

       Let us see the picture of the sun:             Importance of Sun

• Sunlight is essential for living things.
• Plants get energy from the Sun to grow.
• Living things get heat from the Sun.
• Solar energy is used for heating, cooking, lighting etc.

      Negative Aspects of Sun

more...