COMPUTERS IN CHANGING WORLD LESSON: GRADE 3 PREPARED BY: MR. CAEZAR S. SOMBRITO.

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Presentation transcript:

COMPUTERS IN CHANGING WORLD LESSON: GRADE 3 PREPARED BY: MR. CAEZAR S. SOMBRITO

Many Scientific and Technological advances mark the beginning of the 20 th Century. These includes the inventions of airplane, the television and most especially, the computer

COMPUTERS… -They are sweeping away the ways of doing things with superb speed and reliability -Computers are changing our lives.

YEARS AGO… TODAY…

YEARS AGO… TODAY…

YEARS AGO… TODAY…

YEARS AGO… TODAY…

YEARS AGO… TODAY…

YEARS AGO… TODAY…

ASTRONAUTS

WHAT IS A COMPUTER??? -A Computer is an electronic machine. -It accepts data, performs instructions, and produce output. -The processed data that are meaningful and useful to the computer user are called information.

WHAT A COMPUTER CAN DO??? 1.A computer can do billions of task in a second. 2.A computer can do things very accurately. Computer failures are usually due to human error. 3.A computer can make decisions based on the set of instructions given to it. 4.A computer can keep large amounts of data

WHAT A COMPUTER CANNOT DO??? 1.A computer cannot correct wrong instructions. 2.A computer cannot produce information on its own. 3.A computer cannot think on its own. A computer needs to receive input and instructions for it to perform task. If you enter a wrong piece of information or instruction, the computer will not able to give correct data or do the right function the way you want to do it. It can only give out what you have given. This is know in computer language as grabage in, garbage out or GIGO

THE END….