driver


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driver

1. a mechanical component that exerts a force on another to produce motion
2. Golf a club, a No. 1 wood, with a large head and deep face for tee shots
3. Electronics a circuit whose output provides the input of another circuit
4. Computing a computer program that controls a device

driver

[′drī·vər]
(computer science)
A sequence of program instructions that controls an input/output device such as a tape drive or disk drive.
(electronics)
The amplifier stage preceding the output stage in a receiver or transmitter.
(engineering acoustics)
The portion of a horn loudspeaker that converts electrical energy into acoustical energy and feeds the acoustical energy to the small end of the horn.

driver

(operating system)

driver

(programming)
The main loop of an event-processing program; the code that gets commands and dispatches them for execution.

driver

(tool)
In the TeX world and the computerised typesetting world in general, a program that translates some device-independent or other common format to something a real device can actually understand.

driver

(1) A loudspeaker. The terms "driver" and "speaker" are used synonymously; however, "the speaker has four drivers" means that the speaker enclosure contains four speakers.

(2) A hardware device (typically a transistor) that provides a signal or current to trigger some function. See line driver.

(3) Also called a "device driver," it is a program routine that links the operating system to a peripheral device. Written by programmers who understand the peripheral hardware's command language and characteristics, the driver contains the precise machine language necessary to perform the functions requested by the application.

The Driver Is the Interface
When a new peripheral device is added to the computer, such as a graphics card, its driver must be installed in order to use it. The application calls the operating system, the operating system calls the driver, and the driver makes the device work (it "drives" the device). Routines that perform internal functions, such as memory managers and disk caches, are also drivers.

Drivers Can Drive You Crazy!
Sometimes, the solution to a problem is to update a driver, because the current version has bugs. Hardware vendors are always releasing newer versions. For example, everything you see on screen is the result of the display driver (video driver) drawing the screen according to the commands that the operating system issues to it. Such drivers are extremely complex and can be error prone.

There Used to Be More Drivers
In the "old" days of DOS PCs, in order to provide complete control over the printing of a document, software applications included a driver for each of the popular printers. With Windows and Mac, the printer driver is installed into the operating system, not into each application. All applications print through the OS, which commands the printer via the one driver for that printer. See filter driver and driver signing.


Windows Display Driver
To display something on screen, a Windows application makes calls to the Graphics Device Interface (GDI). GDI converts the calls to driver functions, and the driver commands the display adapter (graphics card).







PC Drivers
Every peripheral device requires a driver. The drivers provide the detailed instructions necessary to activate and control the device.


PC Drivers
Every peripheral device requires a driver. The drivers provide the detailed instructions necessary to activate and control the device.


PC Drivers
Every peripheral device requires a driver. The drivers provide the detailed instructions necessary to activate and control the device.
References in classic literature ?
Then the elephants were chained by their hind legs to their big stumps of pickets, and extra ropes were fitted to the new elephants, and the fodder was piled before them, and the hill drivers went back to Petersen Sahib through the afternoon light, telling the plains drivers to be extra careful that night, and laughing when the plains drivers asked the reason.
The driver was leaning over the wall, brandishing his whip, his face empurpled, roaring like a bull.
Whilst he was speaking the horses began to neigh and snort and plunge wildly, so that the driver had to hold them up.
How long have you followed the business of a driver, Tony?
His horses were slowest of all, and he was the worst driver.
In this manner Richard descended the mountain; the bells ringing, and his tongue going, until they entered the village, when the whole attention of the driver was devoted to a display of his horsemanship, to the admiration of all the gaping women and children who thronged the windows to witness the arrival of their landlord and his daughter.
The driver of the coal waggon, a big man in shirt sleeves, lighted a pipe and sat smoking.
Geoffrey wrote a line in pencil on his card, and sent it into the house by the driver.
He became more morose and irritable, and when camp was pitched at once made his nest, where his driver fed him.
It was six o'clock already, and so, in order to be there quickly, and at the same time not to drive with his own horses, known to everyone, Vronsky got into Yashvin's hired fly, and told the driver to drive as quickly as possible.
Crisparkle could hardly see anything else of it for a large outside passenger seated on the box, with his elbows squared, and his hands on his knees, compressing the driver into a most uncomfortably small compass, and glowering about him with a strongly-marked face.
As I am that one, I climb up; and while they are strapping the luggage on the roof, and heaping it into a kind of tray behind, have a good opportunity of looking at the driver.