How does the software drive the hardware to work, and how does it manually install drivers for the h

How the software controls the hardware.

Software is also an entity when working, the essence of software is the current signal, with the voltage to represent the difference is information, use these current signals to control the logic circuit on/off, rely on the logic circuit on/off to control the work of the hardware.

In the final analysis, the software plays the role of a switch signal, and the switch must ensure that the hardware is powered on to work, and the hardware that is not connected to the power supply cannot be controlled by software. It's like a desk lamp that isn't plugged in, no matter how you press the switch, it won't light up.

Any software has to have a materialization process that converts it into a current signal before it can be run, and the software you write on paper will never be able to control the hardware. In the early days, computers used manual wiring to input programs, which was equivalent to using the power of the human body to materialize the software ** into electrical signals; Now we use floppy disks, hard disks are converted into electrical signals through the head, and optical discs need to be converted into electrical signals through the optical head, etc.

What role do operating systems and drivers play in this?

Operating system: The operations you perform (e.g., QQ, **, **, games, etc.) must be supported by the operating system. Therefore, the operating system is the closest to the computer hardware and the most important software!

The traditional definition of operating system is: operating system is to control and manage various hardware and software resources in the computer system, reasonably and effectively organize the work of the computer system, and provide users with a convenient and scalable working environment, so as to play the role of an interface connecting computers and users.

Device driver (device driver) is a special program that can make the computer and the device communicate, which can be said to be equivalent to the interface of the hardware, the operating system can only control the work of the hardware device through this interface, if the driver of a device is not installed correctly, it will not work normally.

For this reason, drivers play an important role in the system, and generally when the operating system is installed, the first thing is to install the drivers for the hardware device. However, in most cases, we don't need to install drivers for all hardware devices, such as hard disks, monitors, optical drives, keyboards, mice, etc., and graphics cards, sound cards, scanners, cameras, modems, etc. In addition, different versions of the operating system support hardware devices are also different, in general, the higher the version, the more hardware devices are supported, for example, the author uses Windows XP, and a driver does not need to be installed after installing the system.

The meaning of hardware is too broad, such as CPU, sound card, graphics card, LED light, buzzer, etc.

Each type of hardware operates differently.

For example, the simplest LED lamp has two pins, one of the pins is connected to the current limiting resistor, the other end of the current limiting resistor is connected to the power supply, and the other pin of the LED lamp is connected to the control pin of the CPU. In this way, if the control pin of the CPU is high (equal to the supply voltage), the light is off, and if it is low (usually 0V), the light is on.

As for the use of software to control the pins of the CPU, it is generally controlled by the P-mount, and the registers corresponding to the P-mount are defined in the software and the compiler, and one register defines multiple pins. Changing the value of the register changes the level on the pin.

The above is the simplest principle.

In general, the software can control the registers, one or more registers control the CPU pins, and the CPU pins are connected to other hardware to control other hardware through a series of pin level changes.

Under the processing of the operating system, the driver becomes a 10010100100101 (binary number) that the CPU can understand, and then the CPU coordinates the work of each hardware according to the driver's instructions. The communication between the CPU and the individual hardware is, of course, also a binary number.

The specific steps are as follows:

1.Select the appropriate option in the "Device such as Acacia Manager" on the computer, right-click the mouse, and select the item "Scan to detect hardware changes" in the pop-up menu.

2.Then perform the operation, and when the "Device Manager" pops up, it will show the Scanning, Plug and Play hardware information.

3.After a while, the "Driver Software Installation" dialog box will pop up, and the lead bureau will display the message "Installing the device driver scumbag program software". After the installation is completed, the relevant hardware program has been installed information will be displayed, and the manual installation operation will be completed.

To put it simply, software is the specification of how hardware works, and it guides how hardware works together like a law. The hardware itself is ignorant, like a.

When powered on, the software tells the hardware what to do by controlling the relevant electrical signals inside the hardware.

Hardware is hard disks, motherboards, CPUs, and so on, and these kinds of things are called hardware software, which is equivalent to the programs installed in the computer, and these programs command the hardware to work.

For example, the computer hardware is a car, the steering wheel, the brakes, these are the hype system, and the driver's technology is the software, and they use their own control methods of the hardware to make a car do different jobs. Software is a logical operation control system based on the "translation" system, that is, the same hardware is used to operate in different forms to give the results of the program, the computer hardware relies on the DOS system to run, the basic statements are just a few, the operator used to input the statement operation, and then the operating system is used to complete the statement input, the user operation is simpler, and with the improvement of processor performance, the program based on this translation system can make the hardware complete the complex input that the general user can not grasp, and the software is produced.

Software is a standard operating program that you control on the surface, in fact, the user participation is very low, nothing more than to input the data you want, and then get a result, if you are not satisfied, re-enter, re-get the important intermediary of the calculation results, just like modern fighter jets, why use fly-by-wire systems, because without software operation, only with primitive mechanical transmission operation, modern fighter jets can not fly, because in a very short time to complete tens of thousands of wing movements, human beings can not complete, But the software can be done, the user is just the input of the next data input, that is, the decision of the output answer, the computer software is based on the display to display the calculation results, the pilot is to use his own body, glasses and other sensory organs to feel, and the pilot is not using the keyboard but the joystick for data input

Hello:——1,As we all know, if a computer does not have an operating system, it is a pile of scrap iron, plastic...The function of the operating system is to operate together according to the functions and functions of each component and in accordance with the instructions.

Drivers are also programsIt does not directly drive the hardware, but records the functions, attributes and other technical parameters of the hardware in the operating system, and the operating system drives the hardware to run.

It's like if you have a plantation, why do you have to hire people???

There is only land, and if there is no planting, it will be wasted. Only by adding software can you realize human-computer dialogue and let the computer do what you want to do for you.

In addition to the chassis case, cooling fan, power supply, etc., other hardware on the computer must be driven by software. . .

Now the shadow of the software can also be found on the cooling fan and power supply, but it is only auxiliary functions, such as temperature control, voltage and so on.

Monitors, keyboards and mice, cameras, sound cards, network cards, hard disk drives, memory modules, motherboards and other expansion hardware all require software drivers, and some do not need to be installed, because the system comes with a lot of drivers, and if it matches the hardware, there is no need to install another driver.

All the hardware of the computer needs drivers to work, you don't have a driver installed doesn't mean you don't need a driver, but the system can install most of the drivers by itself, if to put it simply, the driver is equivalent to a translation (translate the language of the system into the language that the hardware can understand the execution, and translate the language of the hardware into the language that the system can understand).

All the hardware of the computer has basic drivers and extended drivers, and finally serves the work of the system, and the system is a software cluster, which coordinates and cooperates with each other. Only the hardware on which the driver is installed can boot the system and be called by the software cluster in the system to perform its functions.

The general principle is that computer hardware is like a car, but only the car is not driven, and the car cannot move. Therefore, the hardware must have a driver, which is equivalent to a car having a driver to drive, so the driver is called a driver. You can install programs such as "Driver Wizard" and "Driver Home", and you can see which drivers are installed.

Without a driver, the hardware is a broken metal, and the driver is the bridge between people and hardware.

Driver software: I have two interpretations of your word:

1. Drive. For example, if the computer with a new system has no sound, it needs to install an audio driver so that the computer system can recognize the speaker and can use the speaker.

Second, install driver software instead of people, such as driver wizards or something. These software can be used to install drivers instead of those who are unfamiliar with the system.

How to use: 1. Driver: After finding the driver, install it directly, just install it like installing a QQ;

2. Driver installation software: This is more as simple as installing a software for listening to songs, just double-click to install.

To be clear, what is the driver software for?