Black and white as a description may be considered a misnomer in that the images are not ordinarily starkly contrasted black and white but combine black and white in a continuum producing a range of shades of gray.
Some popular black and white media of the past include Movies and animated Cartoons. Photography was black-and-white or shades of sepia. Color photography was originally rare and expensive and again often less than true to life. Color photography became more common in the middle of the 20th century and has become even more common since. Nowadays black-and-white has turned into a niche market for photographers who use the medium for artistic purposes. This can take the form of black-and-white film or digital conversion to grayscale, with optional digital image editing manipulation to enhance the results. So it’s very easy to do your color images to black and white images. For this, You need a software called Adobe Photo shop. After installed you need to open image in it and go to the Image Menu at the top of the screen in adobe photo shop then go to Mode under the Image Menu and then select the GrayScale and you have done successfully. Here is short form. Image Menu > Mode > Grayscale. Hope that will be help full for you!