INTRODUCTION TO COMPUTER SYSTEM
The word “Computer” has been derived from the Latin word “Compute” which means to Calculate
A computer is an programmable electronic device that can accept data, perform arithmetic (+,-,x,/) & logical (<,>,=,≠) operation on the data, produce the required results.
Normally, a computer is considered to be a calculating device that can perform arithmetic and logical operations at a great speed.
Components of Computer
Basically, a computer consists of four components
Hardware: The physical or tangible parts of the computer called hardware. Like Monitor, Keyboard, CPU, Mouse etc.
Software: The set of instructions, that tells the computer, what to do and how to do.
Data: A collection of raw facts and figures is called data, which can include text, numbers, images, audios and videos etc.
User: Computer cannot do any without its operator.
Information
The processed form of data is called information. Information conveys meaning and is useful to one or more people..
Information Processing Cycle (IPC)
Information processing cycle consists of a series of tasks or steps required to convert data into information. Different steps of information processing cycle are as follows.
Characteristics of Computers.
Computers are powerful for a verity of reasons. They operate with amazing speed reliability, consistency, and accuracy. Computer can store huge amount of data and information.
Speed: Most computers carry out billions of operations in a single second. The words fastest computer can perform trillions of operations in one second.
Reliability and consistency: The electronic components in modern computers are dependable because they have a low failure rate. The high reliability of computer enables to computer to produce consistence results. So it correct & tireless machine.
Storage: Computer is used due to its large storage capacity. A data that you can place in 100 (7x4) feet almirah can be stored in a computer on a 2 x 2 inch area.
Adoptability: computer has ability to work with and to control each & every electronic device. To plug camera, motors, fax, and many other machines with it to get required results.
The word “Computer” has been derived from the Latin word “Compute” which means to Calculate
A computer is an programmable electronic device that can accept data, perform arithmetic (+,-,x,/) & logical (<,>,=,≠) operation on the data, produce the required results.
Normally, a computer is considered to be a calculating device that can perform arithmetic and logical operations at a great speed.
Components of Computer
Basically, a computer consists of four components
Hardware: The physical or tangible parts of the computer called hardware. Like Monitor, Keyboard, CPU, Mouse etc.
Software: The set of instructions, that tells the computer, what to do and how to do.
Data: A collection of raw facts and figures is called data, which can include text, numbers, images, audios and videos etc.
User: Computer cannot do any without its operator.
Information
The processed form of data is called information. Information conveys meaning and is useful to one or more people..
Information Processing Cycle (IPC)
Information processing cycle consists of a series of tasks or steps required to convert data into information. Different steps of information processing cycle are as follows.
Characteristics of Computers.
Computers are powerful for a verity of reasons. They operate with amazing speed reliability, consistency, and accuracy. Computer can store huge amount of data and information.
Speed: Most computers carry out billions of operations in a single second. The words fastest computer can perform trillions of operations in one second.
Reliability and consistency: The electronic components in modern computers are dependable because they have a low failure rate. The high reliability of computer enables to computer to produce consistence results. So it correct & tireless machine.
Storage: Computer is used due to its large storage capacity. A data that you can place in 100 (7x4) feet almirah can be stored in a computer on a 2 x 2 inch area.
Adoptability: computer has ability to work with and to control each & every electronic device. To plug camera, motors, fax, and many other machines with it to get required results.
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