THE DEVICE : MEANING AND CLASSES - MECHANICAL, ELECTRONIC AND ELECTRICAL (JS1)

 THE DEVICE 

MEANING AND CLASSES - MECHANICAL, ELECTRONIC AND ELECTRICAL

MEANING OF DEVICES

These are instruments, equipment or machines made to perform specific functions. 

CLASSES OF DEVICES

Devices can be classified into three categories. They are:

(i) Mechanical

(ii) Electronic

(iii) Electrical 

(i) Mechanical Device: This works on mechanical principles (it utilizes physical moving parts, like gears or levers, to carry out its functions). Examples are: ship,sewing machine, motorcycle, typewriter, wheel barrow, Abacus, slide rule, Napier Bone, Pascaline, analytical Engine by (Charles Babbage) e.t.c.

(ii) Electronic Device : This controls the flow of electrical currents for the purpose of information processing and system control. Examples includes: photocopier, Scoreboard, calculator, radio, camera, television, telephone, and computer.

(iii) Electrical Device: This takes energy of electric currents and transform it in simple ways into some other form of energy. Examples includes: electric iron, electric blender, mixer, electric clipper, fridge, fan, washing machine, grinding machine e.t.c

CLASS ACTIVITIES

1. Differentiate between mechanical and electronic devices and list two (2) examples for each.