In computer graphics are geometric functions which used to design various graphics acoording to the user requirements output primitives: some of the important output primitive are 1)text 2)line 3)tone 4)interpolation the above primitive consists of two components they index and types of line and tone consists of pattern index line: i)line indexes: the width or thickness of line and color together to be considered with nnm is called as lineindex ii)line type: it indicates type of line (dashed,dotted,solid) these will be allocated by numbers tone: the component inside it is tone pattern index. it consists of color and pattern information 1)horizontal hatch 2)vertical hatch 3)cross hatch 4)right up hacth 5)leftup hatch here the first three didgits is for pattern and last three digits is for color interpolation : i)line interpolation:it uses coordinates system of user ii)great circle interpolation:it uses map projection coordinates text: it deals with textual data .it conatain following components i)size ii)width iii)type iv)font v)height input primtives: input primitives are nothing but input devices ,generally the input devices are consists of both physical and logical 1)mouse 2)tablet 3)electronic pens all the above device contains the similar input primitive it is coordinate position 4)Keyboard: the keyboard is example of string device its input primitive is characters 5)sensing devices ; these devices comes under vector devices its input primitive values is between 0 and 1 Solution In computer graphics are geometric functions which used to design various graphics acoording to the user requirements output primitives: some of the important output primitive are 1)text 2)line 3)tone 4)interpolation the above primitive consists of two components they index and types of line and tone consists of pattern index line: i)line indexes: the width or thickness of line and color together to be considered with nnm is called as lineindex ii)line type: it indicates type of line (dashed,dotted,solid) these will be allocated by numbers tone: the component inside it is tone pattern index. it consists of color and pattern information 1)horizontal hatch 2)vertical hatch 3)cross hatch 4)right up hacth 5)leftup hatch here the first three didgits is for pattern and last three digits is for color interpolation : i)line interpolation:it uses coordinates system of user ii)great circle interpolation:it uses map projection coordinates text: it deals with textual data .it conatain following components i)size ii)width iii)type iv)font v)height input primtives: input primitives are nothing but input devices ,generally the input devices are consists of both physical and logical 1)mouse 2)tablet 3)electronic pens all the above device contains the similar input primitive it is coordinate position 4)Keyboard: the keyboard is example of string device its input primitive is characters 5)sensing devices ; these devices comes under vector devices its input primitive values is betwe.