Cables are often designed into devices or created with a specific end-use in mind and there is a wide variety in the types of electronics cabling. Connectors are used where wire lines need to be attached or disconnected. Just like cables, connectors are used in a lot of electronic equipment.A connector is a device that joins two pieces of equipment, wire, or piping together.Connector (computer science), a pointer or link between two data structures. Data connector, generic term for software which allows loading of data from one place to another, e.g. databases, file systems or events.Connectors are parts or devices used for electrically connecting or disconnecting circuits etc. They can connect and disconnect by hands or with simple tools without requiring special tools or processes such as soldering.A communication cable is made of many wires or optical fibers twisted together to make a larger wire. Each of these wires may be covered. Some cables contain both electrical wires and optical fibers. There are many kinds of cables, including coaxial cables which block out radio or magnetic interference from other wires or cables, by having one wire inside an insulated tube surrounded by a second wire, acting as a metal tube along the same axis.Electrical cables are usually made of copper, because electricity moves well through copper, but it is not as expensive as silver or other better conductors. Cables are sometimes made of aluminium because it is cheaper than copper.