Hello, how are you ?
I hope this post is very usefull to you. So not late. I start my main writing.
A computer is an electronic machine that stores, retrieves, and processes data. It cannont think or reason ; it can only carry out instructions given to it. A set of instructions that directs its actions is called a program. Different programs are used to solve different problems. Ability to accept, store and execute programs makes the computer an invaluable and all-purpose business tool.
The first step of solving a problem by a computer is to develop a computer program and them store it in the memory. The computer them executes the instruction in the program. The instructions generally direct the computer to perform three basic functions over and over again ; these are input ; processing ; and output. Collectively , there functions constitute the data processing cycle.
1) Input : Input devices feed the computer facts or to be processed.
2) Processing : The control and storing of data, numerical comparisons and arithmetie operations are performed on the input data to produce that results.
3) Output : The computer feeds the processed data or information to the output devices.
a) System Uni
1) Keyboard (Input Unit)
2) Monitor (Outout Unit)
b) Processing
1) Output
2) Input
Figure : a ) Solving a problem with computer
b) Equivalent block diagram
A computer reads a program and stores it in the memory and executes instructions to :
1) Input data from disk , keyboard or other storage media
2)Process data and
3)Output results to display screen , disk or other media.
I hope this post is very usefull to you. So not late. I start my main writing.
A computer is an electronic machine that stores, retrieves, and processes data. It cannont think or reason ; it can only carry out instructions given to it. A set of instructions that directs its actions is called a program. Different programs are used to solve different problems. Ability to accept, store and execute programs makes the computer an invaluable and all-purpose business tool.
The first step of solving a problem by a computer is to develop a computer program and them store it in the memory. The computer them executes the instruction in the program. The instructions generally direct the computer to perform three basic functions over and over again ; these are input ; processing ; and output. Collectively , there functions constitute the data processing cycle.
1) Input : Input devices feed the computer facts or to be processed.
2) Processing : The control and storing of data, numerical comparisons and arithmetie operations are performed on the input data to produce that results.
3) Output : The computer feeds the processed data or information to the output devices.
a) System Uni
1) Keyboard (Input Unit)
2) Monitor (Outout Unit)
b) Processing
1) Output
2) Input
Figure : a ) Solving a problem with computer
b) Equivalent block diagram
A computer reads a program and stores it in the memory and executes instructions to :
1) Input data from disk , keyboard or other storage media
2)Process data and
3)Output results to display screen , disk or other media.
