UNIT-1 INTRODUCTION TO
COMPUTER AND PROGRAMMING:
1
,What is Computer?
▪ The word computer comes from the word “compute”, which
means, “to calculate”.
▪ A computer is an electronic device that can perform arithmetic
operations at high speed and it can process data, pictures, sound
and graphics.
▪ It can solve highly complicated problems quickly and accurately
,Advantages of Computer
▪ Speed
• It can calculate millions of expression within a fraction of second.
▪ Storage
• It can store large amount of data using various storage devices.
▪ Accuracy
• It can perform the computations at very high speed without any mistake.
▪ Reliability
• The information stored in computer is available after years in same form. It
works 24 hours without any problem as it does not feel tiredness.
▪ Automation
• Once the task is created in computer, it can be repeatedly performed again by a
single click whenever we want.
▪ Multitasking
• It can perform more than one tasks/operations simultaneously.
, Disadvantages of Computer
▪ Lake of intelligence
• It can not think while doing work.
• It does not have natural intelligence.
• It can not think about properness, correctness or effect of work it is doing.
▪ Unable to correct mistake
• It can not correct mistake by itself.
• So if we provide wrong or incorrect data then it produces wrong result or
perform wrong calculations.
COMPUTER AND PROGRAMMING:
1
,What is Computer?
▪ The word computer comes from the word “compute”, which
means, “to calculate”.
▪ A computer is an electronic device that can perform arithmetic
operations at high speed and it can process data, pictures, sound
and graphics.
▪ It can solve highly complicated problems quickly and accurately
,Advantages of Computer
▪ Speed
• It can calculate millions of expression within a fraction of second.
▪ Storage
• It can store large amount of data using various storage devices.
▪ Accuracy
• It can perform the computations at very high speed without any mistake.
▪ Reliability
• The information stored in computer is available after years in same form. It
works 24 hours without any problem as it does not feel tiredness.
▪ Automation
• Once the task is created in computer, it can be repeatedly performed again by a
single click whenever we want.
▪ Multitasking
• It can perform more than one tasks/operations simultaneously.
, Disadvantages of Computer
▪ Lake of intelligence
• It can not think while doing work.
• It does not have natural intelligence.
• It can not think about properness, correctness or effect of work it is doing.
▪ Unable to correct mistake
• It can not correct mistake by itself.
• So if we provide wrong or incorrect data then it produces wrong result or
perform wrong calculations.
