Some of the advantages of electromechanical relays include the facts that no heat sink is required, the contacts can be either AC or DC, and the initial cost is low. Some of the disadvantages include the contacts becoming worn, resulting in a limited lifespan, and that they don't perform that well when it comes to switching high inrush currents.
you need switches to help you see. no switches can not help you see.
computing devices based on relays, switches, clutches, odometer counters, etc. not electronics.
Two advantages of modular chassis switches over fixed chassis switches are their ease of upgrade and their flexibility. Modules can be freely swapped to increase its capacity or capabilities based on ever changing demands.
Pressure switches work differently depending on the type of switch you are referring to. The two main types are electromechanical and solid-state types.
Depending on the type, a computer can be considered an electromechanical device. This is because some parts feature mechanical operation (e.g. floppy disk drives and optical drives) while others are purely electronic.
Izhevsk Electromechanical Plant was created in 1957.
A device or system that is designed to be electrically actuated, like a device actuated by a solenoid, is an electromechanical design. Electromechanical engineers create this type of design.
It was the first generation of an automated telephone exchange used for routing calls from one line to another. Strowger was the first to implement electromechanical switches which removed the need for an operator to manually connect the telephone lines together.
an electrmagnet relay uses an electromagnet to pull a piece of iron or steel towards it such that it causes to contacts (pieces of metal such as gold) together and complete a circuit. They can range in size from as small as your fingernail (to switch low power signals such as the inputs to an audio amplifier) to as large as stuffed sofa (to switch the output of a power plant). An electromagnet is a coil of wire wound on a iron core. When a current is run through the coil, it becomes a magnet.
Mostly a historic artifact. When AT&T controlled the industry and use devices like Strowger Switches, other electromechanical devices and large battery backup system it was likely the best tradeoff decided on by the engineers.
i think hard disk , flopy disk and CD room are electromechanical momory devices
electromechanical