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Area and Perimeter of circle program in c

Area and Perimeter of circle program in c /*C program to find area and perimeter of circle.*/ # include < stdio.h > # define PI 3 . 14f int main ( ) { float rad , area , perm ; printf ( " Enter radius of circle: " ) ; scanf ( " %f " , & rad ) ; area = PI * rad * rad ; perm = 2 * PI * rad ; printf ( " Area of circle: %f \n Perimeter of circle: %f \n " , area , perm ) ; return 0 ; }
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what is a printer?

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A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing. Features of impact Printer The general features of impact printer are- They create the characters by striking  the paper. They print on most types of paper. Multiple (carbon) copies may be printed at once Disadvantages of impact printers They are relatively slow They do not print transparencies (documents printed on clear plastic film for use with over head projector. Dox –matrix are impact printer that draw a character from a series of dots. They are suitable for draft copies and home use, where the quality of finished document is not critical. They are also use for preparing of bills and invoices in hospital because they are cheap and durable. Other printer- las...
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operating system vs application software

What is application software? A program or group of programs designed for end users. Application software can be divided into two general classes: systems software and applications software. Systems software consists of low-level programs that interact with the computer at a very basic level. This includes operating systems compilers , and utilities for managing computer resources. In contrast, applications software (also called end-user programs) includes database programs, word processors, and spreadsheets. Figuratively speaking, applications software sits on top of systems software because it is unable to run without the operating system and system utilities. There are a lot of terms can be found over the internet related to computer. All type of computer have processor, Memory, keyboard, mouse and screen to display output. But their is a significant differenc...
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