A digital camera is a camera that stores the pictures and video it takes in electronic format instead of to film. The picture is of a Casio QV-R62, a 6.0 Mega Pixel digital camera and example of a typical digital camera.
Definition of serif. : any of the short lines stemming from and at an angle to the upper and lower ends of the strokes of a letter.
Helvetica is a sans serif type and Times Roman is a serif type. A small decorative line added as embellishment to the basic form of a character. Typefaces are often described as being serif or sans serif (without serifs). The most common serif typeface is Times Roman. A common sans serif typeface is Helvetica.