Hardware and software connectivity issues for the device 255

After plugging in the hardware, the driver should be installed, the driver is a program written in a development language such as C language, and the general driver is to amplify the signal and drive the actuator to run, so it is called a driver.

As you said, after connecting the printer and installing the driver, the computer will automatically recognize the printer. The word processing software sends the "print" command to the computer, and the computer sends the print command to the printer through the driver, and the printer recognizes the "print command" and the text to be printed or **, and controls the operation of the motor inside the printer.

The signal in the computer is essentially a communication language, 0101010010001010, 0 and 1 signal combination, the computer sends such a signal through the driver and cable, (but the signal sent by the computer is relatively weak, such as a 5V movie representation, but the printer needs 20V voltage, so the driver converts the 5V voltage into 20V voltage control,) The printer receives such a signal through the drive to control the operation of the internal motor.

To make an analogy, use a remote control to control the air conditioner switch, then compare, the remote control button (the computer's soft "print" command), the remote control internal circuit (drive software program), the wireless communication medium (hardware cable), the air conditioner (printer). Such an analogy.

You don't even explain what you're going to do, you can't simply explain how to connect. Besides, some of the names you mentioned are equipment, and some are technology. It is recommended that you carefully study the meaning of these names first. Start with the basics of networking and deepen your understanding step by step.

The programming language at the lowest level of the BIOS plays the role of allocating hardware. The bridge between the hardware is the intermediate program between the operating system and the hardware.

Check the detailed conflict in the network card information, and want to know if your two rows of computers are connected to a switch, this switch may be broken, such as a local short circuit or leakage of the interface, which will cause the network card to work abnormally, and seriously lead to network card damage.

This is an Internet café computer bar I have done network management Because you have a batch of problems It can only be a problem with the line Check whether the line is connected to the network You should have this device, check it out, change the interface yourself It can only be this problem Thank you for adopting.

It may be a problem with the network card, don't be too troublesome, you can just make an XP system for the machine in question, and see if the network card can work? Or find two machines, install an independent network card on it, and see if it's okay? The goal is to find out what the problem is.

Restart the router, is it because the IP address is not released, or there is a problem when doing the synchronization.

Then use the driver wizard or something like that to install a universal driver to try.。。。 If it's not a problem with the NIC driver, then see if it's a LAN IP conflict. Wait.

Reinstall the system, if it doesn't work, you can try to replace the network card or trigger the host position.

Is there a problem with the router's interface?

Ask the staff to install a broadband line for you, if you have a **line at home, you can directly load it on the **line, as for the computer hardware and software equipment has a network card, as for the software, if you are an XP system, you can create a connection, it's very simple.

Telecom handles Internet access services--- ** line is connected to the cat (modem) -- the network cable on the cat is connected to the network card--- and a dial-up program is created (XP builds a new connection, 2K uses ISP to give you software).

You need to have a computer and a network card on it. Install broadband, and the door-to-door staff will adjust it for you.

Software controls the hardware by converting binary code into a language that can be read by machines.

Software is written by a programming language, and after the software is installed, the programming language is compiled into a machine language, and the hardware can execute the machine language.

How to use software to access hardware (explained in part).

The address signal sent by the CPU is transmitted to NOR Flash; When the write operation is performed, the NWE signal is low, and the data signal is sent from the CPU to NOR Flash. When reading and writing, the signal is high, and the data signal is sent from NOR Flash to the CPU.

The hardware wiring determines that the read and write operations are all in 16-bit units.

How does the software initiate read and write operations? The following is explained in detail through the ** of several examples.

Example: 16-bit read operation for address alignment.

unsigned short * pwaddr = (unsigned short)0x2;

unsigned short wval;

wval = *pwaddr;

The read and write addresses issued by the CPU are 0x2.

Example: 8-bit read operation.

unsigned char * pucaddr = (unsigened char *)0x6;

unsigned char ucval;

ucval = * pucaddr;

Example: 32 read operations.

unsigned int * pdwaddr = (unsigned int *)0x6;

unsigned int udwval;

dwval = * pdwaddr;

Example: 16-bit write operation.

unsigned short * pwaddr =(unsigned short *)0x6;

pwaddr =0x1234;

Let's put it simply.

Software is "0" and "1".

And the hardware is made up of countless so-called diodes, and the discharge and charging will cause the software to default to "0", "1".

In this way, it can be linked, and this is a very crude statement, and it is specifically recommended that the landlord learn to learn a single-chip microcomputer.

It's connected with a disc drive, stupid.

Hardware is like the table you eat, software is your dish, and what we call playing with the computer is like eating (with software) on the dinner table (hardware)!

I don't know if the metaphor is inappropriate

This is a very constructive question.

Installing drivers can solve the problem.

Software relies on hardware to achieve functions, hardware is controlled by software, and the two are interdependent in a system. Specifically, you are talking about the process of software control hardware: the software programmer writes a program that is translated into a language (binary**) that the hardware can read through the assembly compiler, and then the hardware performs the corresponding operations according to this binary.

The hardware does not control the software, only the software to monitor the state of the hardware, and then react, in fact, the software monitors the hardware.

There is also an Apple connected computer mobile phone will prompt whether to trust the computer, you need to confirm! Otherwise, you can't connect!

What brand and model printer.

The driver installation is not yet available.

Driver issues update.