Understanding Touchpad Functions and How Touchpad Works

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The touchpad on a netbook is an inseparable tool, because functionally the Touchpad is an important part of a netbook device, without a netbook Touchpad it will be a little difficult to use, even though you can use a mouse.

What's more, for those of you who have been trained to use the Touchpad when using a netbook, it must be a little uncomfortable when using a mouse. Functionally, the Touchpad is actually the same as the mouse, but the form and the way it works are slightly different.

The touchpad can be mentioned as an alternative to the mouse which is now often used by computer users, netbooks, but that doesn't mean other than that netbooks don't use a touchpad, many ordinary computers use a touchpad, such as portable touchpads that use a touchpad cable, generally, this kind of touchpad is used by users who use a touchpad. work for certain sectors, such as writers, designers, and others. Here is the understanding of Touchpad.



Understanding Touchpad

The touchpad is a piece of hardware that belongs to the group of input devices, the Touchpad is divided into a surface board that is protected by special sensors that can detect finger movements, this finger movement will be recorded by sensors on the Touchpad to interpret a special language to perform the role that runs the pointer on the monitor computer or netbook.

The touchpad is functionally used to change the role of the mouse that requires small space or space, especially for those of you who have little room to move.

The touchpad contributes exclusively to computer users who use the mouse role too much. Because the Touchpad has a room or board that is suitable for finger movement

Because of that sometimes people who are trained to use the Touchpad will find it difficult to use the mouse, likewise, people or computer users who are trained to use the mouse because of that the first time using the Touchpad will find it difficult to adapt. , and it takes quite a while. After knowing the understanding of the Touchpad, here is the role of the Touchpad.


Touchpad Role

When talking about the role of the Touchpad itself, it can't be separated from the so-called mouse, because the role of the Touchpad is the same as the mouse to control the pointer that appears on the monitor, but the emergence of the Touchpad cannot be separated from the amazing idea to create a portable computer that can be carried anywhere. Again, today's computers include large items and weigh quite a bit when compared to today's computers.

The idea of ​​​​the emergence of the Touchpad was initiated by Alan Kay of Xerox to make a computer that can not be moved with the name still fixed, meaning that there is a power storage device that can guarantee the continuity of a computer user.

The emergence of this idea occurred in 1970 since this idea has always been developed to produce various types of technology related to portable computers, especially the idea of ​​​​changing the role and work of the mouse.


Touchpad Working Steps

Although the Touchpad has a similar role as the role of the mouse to move the pointer that appears on the monitor, the workings of the Touchpad are different from the mouse device.

The working steps of the Touchpad itself are in the matrix city which is arranged on the Touchpad board in the 2nd arrangement which serves to detect movements on the surface of the fingers. This matrix sensor is separated from an insulator which results in a separate form such as a grid, finger movement will be detected by a flowing power line.

Like being a power line from finger movement, it will interpret role codes that can be read by computer mechanisms and processes to be translated and shown back on the monitor in the form of pointer movement on the monitor.

Technically, this movement includes the most difficult and complex formulas, but because the processing devices on the computer move very quickly, the pointer movement on the computer monitor is like the movement of a finger on the surface of the Touchpad.

The Touchpad type generally consists of two forms on netbooks on the market, the first is the Touchpad which is connected directly to the right-click and left-click buttons, then the second is the Touchpad type which has a separate form with the right-click and left-click buttons.

If you are looking for a netbook that is comfortable to use, you should buy a netbook type that offers a Touchpad with separate right-click and left-click buttons, because it will make it easier for you when using the netbook or moving the pointer.

Because if you buy a Touchpad that is connected directly to the right-click and left-click buttons, it will be inconvenient for you when using the button, there is no barrier between the two, so it will be difficult for those of you who use a netbook computer type for design and technical purposes. another

If you buy the wrong touchpad, you might have to buy a mouse as an alternative to the touchpad, it's a shame if you have to use a mouse, even though netbooks have devices that can be used to move the pointer, but because it's just not comfortable, you have to use a mouse.


There are two basic steps to how the touchpad works:

1. In the approach, the conductors will be laid out in a formation of lines in two arrangements, separated by an insulator and crossing them at right angles to form a grid. High-frequency signals are assigned sequentially between pairs in a two-dimensional grid array. The current passing between the nodes corresponds to the capacitance. When a virtual ground, such as being placed on one of the intersections between the conductive arrays of several sectors briefly at this ground point, causes a large capacitance shift at that point. This system received US Patent 5,305,017 granted to George Gerpheide in April 1994.

2. A capacitive shunt system, described in the program notes by Analog Devices, senses the capacitance switching between the transmitter and the receiver located at the junction of the sensors. The transmitter creates an electric field that oscillates at 200-300 kHz. When a point, such as one placed between the transmitter and the receiver, some of the field lines move away, the capacitance decreases.


That was a complete explanation regarding the understanding of the Touchpad, hopefully, because there are articles that review the Touchpad you can find out how the Touchpad was found, and how the Touchpad works.

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