Some time ago, the Linux kernel was compiled. Online documents all said that after compilation, Lilo was modified. config, which has a section of configuration: Root =/dev/hda2. Check my own lilo configuration, as if it should be SDA. I checked the differences between hda and SDA on the Internet and picked up the explanations on the English forum.
IDE Hard Disks (well, devices, actually) are HD The standard partitioning scheme nowadays is (assuming
1. Please check the information to understand these terms:/dev/hda,/dev/hdb,/DEV/SDA,/dev/sdb, what is the difference between them?A: Hda generally refers to the IDE interface of the hard disk, HDA refers to the first hard disk, HDB refers to the second hard disk, etc.; SDA refers to the SATA interface of the hard disk, SDA refers to the first hard disk, SDB refe
Analysis on the reason of frequent drop of modem
1, if the ADSL modem just as bridging mode access, first through the ADSL Modem Web page to view the line attenuation, Snr margin (this value is normally 15-40db, if less than 10db, indicating that the current line quality is not good enough), line speed and other parameters, If these parameters are abnormal, plea
What does the ADSL modem mean? often have netizens to consult this problem, ADSL modem is a modem, commonly known as "cat", users of ADSL broadband after (telephone line internet), must use ADSL modem this equipment, can normal internet.
Why do you use ADSL Modem?
ADS
SerialPort enables modem incoming call display
A friend took a case, but had to go on a business trip temporarily, so I called some functions for me to do it. I have always paid attention to WEB programming, but I am still unfamiliar with serial programming.ArticleA lot. Of course, it is better to count the articles in cnblogs for help. Write this into your blog for future reference, hoping to help those who need help.This section mainly describes ho
Operating environment: FreeBSD 3.4-release, the same dimension 56K external modem
First, set/etc/ppp/ppp.conf
#vi/etc/ppp/ppp.conf
If the modem company COM1 Port is set to:
Default
Set DEVICE/DEV/CUAA0 (other can be invariant)
.....
If the modem company COM2 Port is set to:
Default
Set DEVICE/DEV/CUAA1 (other can be invariant)
.....
Second, run PPP int
SMS cats are devices used to send and receive text messages. They are the same as mobile phones.Insert the SIM card and connect it to the computer through the (USB or serial port) data cable/PCI slotYou can use related software on your computer to send and receive text messages.
Related software is the text message application that sends and receives text messages.You can develop your own device, or ask the device manufacturer of SMS to provide
The principle and fee of sending and receiving te
serial port and the PC communication, the communication line connected to the charger.Hart Conversion switch: 250Ω, none, 24v/250ω three Hart conversion modesdial to "250Ω" is the internal 250Ω resistor working state;dial to "None" is not built-in 24V and 250ω resistance of the working State;dial to "24v/250ω" is the built-in 24V and 250Ω resistors working state.According to the actual situation, the conversion switch is dialed to the corresponding location, and then connected to the line.① bui
Note: These are common Modem commands. Some commands may not apply to all modem instances. If any problem occurs, see the modem documentation or contact the modem manufacturer's Technical Support Department.
All commands (with two exceptions) must start with the character. The two exceptional commands are escape sequ
Modem dial-up Internet in Linux
In the broadband access has not come into the tens of thousands of households, we have to connect to the Internet, or to drive the "cat", so for many netizens, modem is a very lovely thing. Windows provides a good support for modem, making it easy to install modems. But it's not so good to install this lovely thing under Linux.Firs
The other party cannot hear me.
Symptom: Why can't I hear the voice of the other party when I dial the modem? I used the phone dialing program under WIN 98 and tried at command to dial up directly. Modem calls are not allowed.
Method: special software is required.
Step: omitted.
Note: The Voice function of modem can be achieved only through corresponding softwar
The most important thing for us to use a computer is to access the Internet. We need to complete basic installation settings. The most important part is the installation and setup of the modem. Generally, the Modem can be divided into the following four categories based on the Modem format and installation method:1. ExternalThe external
My ADSL "CAT" was under attack. For this reason, I asked the kitten to cultivate "internal strength" and "security. The following describes how to cultivate secrets ".
Recently, my ADSL Modem often experienced problems. Sometimes I can work normally when I start the system, but most of the time I cannot connect to the web page. After a while, I restarted the ADSL Modem again. At first, I thought it was a pr
In the above, we introduced the configuration of ADSL modem basic preparation work, now we introduce the configuration of ADSL modem two basic methods.
Two ways of configuring ADSL Modem
The general Ethernet interface of ADSL modem provides two different configuration methods: One is to use the special configuration
Why do I need modem call display?Because modem, whether it is a built-in modem or an external modem, as long as it supports incoming call display and is connected to a computer, you can install the relevant incoming call display software to make calls, the phone number is displayed on the computer. However,
V. Modem Glossary
At command (atcommands): a modem command language invented by Hayes, which is now a de facto standard and used by all modem manufacturers. The name of each command starts with the letter ". At is followed by letters and numbers to indicate specific functions. For example, "atdt" is a dialing command, other Commands include "initialize the
When using modem to surf the Internet, we are likely to encounter the modem does not perform dial-up operation trouble. In the correct connection to the computer, modem and telephone lines, dial-up Internet operation, if the modem does not dial tone, always did not connect or LED does not flicker, indicating that the
Currently, ADSL virtual dialing is widely used for broadband access, which naturally requires the support of dial-up devices-ADSL Modem. Installing and using ADSL Modem is simple, but what should I do if I encounter such equipment faults? This article lists three problems and solutions that have been repeatedly mentioned by netizens in the ADSL Modem, hoping to h
The modem translates into Chinese meaning. That is, our mouth often said "cat", it is the modulator and demodulator together collectively. A transformation interface that enables digital data to be transmitted over an analog signal transmission line.
The modem's role is to translate the digital signals of the computer into the pulse signals transmitted by ordinary telephone lines, which are then received by the m
Internet access in China has developed very rapidly. It may not matter if many people do not know about cable modem in Internet access. After reading this article, you must have gained a lot, I hope this article will teach you more things. When cable modem uses a cable TV network for high-speed access, the general connection mode is: one end is connected to a computer, and the other end is connected to a cl
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