Twisted pair cables are a type of electrical wiring commonly used for data transmission. They consist of pairs of insulated copper wires twisted together, which helps reduce interference from external sources. This design makes them ideal for applications like telephone lines and computer networks, where clear communication is essential. There are two main categories of twisted pair cables: Unshielded Twisted Pair (UTP) and Shielded Twisted Pair (STP). UTP is widely used in everyday networking, while STP includes additional shielding to protect against electromagnetic interference. Both types are popular due to their cost-effectiveness and ease of installation.