Working principle of keyboard.

 How an keyboard works?

*A keyboard contains many keys that's called switches.The machanism has lots of keys is push and button system.

*When key has been selected on electrical circuit is entered on chipset to keyboards and that keyboard has been telling to the computer to show on screen key function like numbers,letters and other symbols.

Switch mechanism.

*It's compressed of a key with covered cap having a plunger and there will be a rubber above a membrane circuit.

*The plunger to trigger the membrane circuit causing to produce an electric signal to the computer.

Abbreviation of keyboard.

KEYS ELECTRONIC YET BOARD OPERATING A TO Z RESPONSE DIRECTLY.

*To find the content easily with software functions.

*These can access the all your personal computer(pc) or laptops.

*We can search the files without using the mouse.

*Access important and useful programm's quickly with shortcut key's

Who named the keyboard?

*The QWERTY layout was devised and created in the early 1870's by christoper latham sholes a newspaper editor and printer who lived in Kenosha,wisconsin.

There are several types of keyboard.

1.In the format of QWERTY keyboard in American system and Europe.

QWERTY

2.AZERTY keyboard is used in France and Belgium.

AZERTY

Function of keyboard.

*A computer keyboard is an input device that allows a person to type a characteristics like numbers,letters etc..using keyboard is often called typing.

*In simple words when key is pressed a switch closes and current flow's into a small chip in the keyboard.

*Each key has associated number called an scan code.

*Computer keyboards are generally quicker to use than old-fashioned typewriter keyboards, though they're still no match for dictating your documents with voice recognition software.

Under the key.

*When you press the key, the bar pushes down through the hole to touch the contact layers below. 

*There is a compressed layer has been present.

*Inside the hole, there's a little tiny piece of rubber (you can't see it in this photo) that stops the key moving down and pushes it back up when you release it. 

Under the keyboard.

* We. can see the transparent plastic contact layers that detect key presses and (through those layers) you can see the round bars the keys down from above.

*which carries electrical signals from the keyboard to your computer's USB 

*Balancing on my fingertip, you can see one of the little rubber pieces that makes the keys bounce up and down. Notice the pattern of electrical tracks on the contact layers. 

When you press the key the functioning will like this as shown in below picture

rubber-membrane keypad.

Instead of plastic keys and contact layers, there are just two parts. On top, there's the keypad part with all the keys molded from a single piece of flexible (rubbery) plastic.

*In these days available the keyboard in wireless.

When was wireless keyboard has been launched?

*The first wireless keyboard was introduced by the Apple company is realised at the September 16 in year of 2003.

*The Bluetooth change everything to the pc or laptops and others (IOT) devices.

How an wireless keyboard works?

*It's completely depends on infrared technology uses light waves to transmit (or) recieve signal from computer to keyboard and keyboard to computer.

*It uses 2.4GHz in wireless keyboard.The receiver is an USB dongle to connected to your device.

*The Bluetooth keyboard send and receive the dia via bluetooth technology.

*The keyboard, in turn, starts transmitting a series of digital signals in the form of radio waves.

How the power was in wireless keyboard?

*They can include power with the batteries which can removeable.

*Now a days they can non-removable batteries

Subjected to chargeable.

*This ensures that users can work or play without constantly worrying about the battery dying.

Speed keyboards.

Generally the speed keyboards are wired when compared to wireless.wired keyboard is more faster than wireless keyboard.

The advantage of wired keyboard.

*Not required batteries.

*Low in cost compared to wireless keyboards.

*No batteries and no power consumed.

*No delay and no lag.

The advantage of wireless keyboard.

*Does not required any connections.

*Uses in convenient way.

*Uses as comfortable.

*Easy way to connect the keyboard.

Frequency of wireless keyboards.

Wireless keyboards use radio frequency to connected device. They operate on specific frequencies, commonly 2.4 GHz or 5 GHz, to avoid interference from other wireless devices.Apart from the key components mentioned above, a wireless keyboard also incorporates several internal electronic components. These include a voltage regulator, which ensures a stable power supply to the keyboard's circuitry, as well as capacitors and resistors for signal processing and filtering. This advanced method of communication allows for seamless interaction between the user and their device.With the rise of wireless technology, security has become a paramount concern. Metion understands the importance of safeguarding users' data and incorporates encryption protocols in their wireless keyboards. 

Thank you for reading with us.