This presentation provides an overview of biochips. It defines biochips as a collection of miniaturized test sites arranged on a solid substrate that can perform thousands of biological reactions in seconds. The presentation describes the basic components and working of biochips, which involve a transponder implanted under the skin and an external reader. It discusses applications like tracking individuals, storing medical records, and sensors. While biochips provide benefits like speed and portability, the presentation also notes potential disadvantages regarding privacy and control issues.