Please you can check link of this article to lurn more details. Next-generation sequencing (also known as massively parallel sequencing) technologies are revolutionising our ability to characterise cancers at the genomic, transcriptomic and epigenetic levels.
Your best option is to go to company websites they deal with everything from the mechanics of the sequencers, preparation of starting material, p recessing and interpretation of results. For example Illumina, Life Technologies and PacBio. Also check out CLC BIO for processing of results.