A machine is a tool containing one or more parts that transforms energy. Machines are usually powered by chemical, thermal, or electrical means, and are often motorized. Historically, a power tool also required moving parts to classify as a machine. However, the advent of electronics has led to the development of power tools without moving parts that are considered machines.

  Diesel Engine

A simple machine is a device that simply transforms the direction or magnitude of a force, but a large number of more complex machines exist. Examples include vehicles, electronic systems, molecular machines, computers, television, and radio.

                     Basic Simple Machines

Types of Machine

Classification Machine(s)
Simple machines Inclined planeWheel and axleLeverPulleyWedgeScrew
Mechanical components AxleBearingsBeltsBucketFastenerGearKeyLink chainsRack and pinionRoller chainsRopeSealsSpringWheel
Clock Atomic clockWatchPendulum clockQuartz clock
Compressors and Pumps Archimedes’ screwEductor-jet pumpHydraulic ramPumpTrompeVacuum pump
Heat engines External combustion engines Steam engineStirling engine
Internal combustion engines Reciprocating engineGas turbine
Heat pumps Absorption refrigeratorThermoelectric refrigeratorRegenerative cooling
Linkages PantographCamPeaucellier-Lipkin
Turbine Gas turbineJet engineSteam turbineWater turbineWind generatorWindmill
Aerofoil SailWingRudderFlapPropeller
Information technology ComputerCalculatorTelecommunications networks
Electricity Vacuum tubeTransistorDiodeResistorCapacitorInductorMemristorSemiconductor
Robots ActuatorServoServomechanismStepper motor
Miscellaneous Vending machineWind tunnelCheck weighing machinesRiveting machines