With most computer modems you have capability for faxing. Many portable modems are very easy to hook up. The telephone line plugs into the back of the modem and the modem into the back of the computer.The speed of the connection is determined by the computer. All modems are the same in what they do, they allow you to hook up to the internet.
Modem
Just about every computer has the availability for a modem. If your computer doesn't have availability then your system is probably to old. There are two types of modems,internal and external. The external one sits on you desk and the phone line plugs into it,then it plugs into the back of the computer. Internal modems comes already set up in your computer and saves space in your work erea. These are alittle less expensive, but they both do the same job.
Data
The modem allows you to send and receive data. Most computer modems are user-friendly. No matter what it is that you want to do,if it's to go on line and check e-mails,send a message to a friend or even play games, to be able to access these services iyou must have a modem.
Connection
Most of the time when there is a problem connecting to the internet, it's your modem. This is sometimes easily fixed. Unplug your power source from the back of your modem for about 30 seconds and the re-plug it and try again. If this doesn't work then call your provider.
There are hundreds of Adware deletion programs on the push. Your best bet is to go to a place like Spybot Download It lists the best Adware Removers presently on the push. Or just google the speak "adware remover". Like I said, you'll find hundreds. Some are good, some aren't. Free Spybot is a great situate for you to see which ones work, but I know some of you just like to google, and that's approval too ;). Just get one, I feel bad having to current so wholly for something so nominal.
Tuesday, February 17, 2009
Monday, February 16, 2009
Cable Modems FAQ
Do you ever wonder how a cable modem works? Are you trying to understand if high-speed internet access is right for you? Would you like to know how to purchase a cable modem? Here are some cable modem FAQs that will give you more information.
What do cable modems do? A cable modem is a device that allows you to use your cable connection to get high-speed internet access. It is responsible for detecting and converting the data that eventually gets sent to your computer.
How do cable modems work? Since a coaxial cable has a high data storage capacity, both the internet and cable television can use the same cable. The cable modem takes a data signal and converts it to its digital form. This is the form that your computer reads and eventually converts into data that you can understand.
Where can you purchase a cable modem? You can get a cable modem from your cable company, from a store, online, or secondhand by searching in the classified ads.
How can you compare prices? There are plenty of websites devoted to price comparisons. You can also do the research yourself by looking at individual websites and asking questions at retail stores. Start a spreadsheet to keep track of the information. Once you find a few products that fit your requirements, you can do more in-depth research.
Can you read product reviews? Yes. There are a few ways to find product reviews. Companies offer testimonials as reviews. These opinions may be biased, however. If you want to see both good and bad reviews, you can find a variety of them online or in consumer magazines. You can also ask people in online forums to ask them what they think of a certain product.
These cable modem FAQs should help you make a purchase. Doing research is essential in getting the best product for your money.
What do cable modems do? A cable modem is a device that allows you to use your cable connection to get high-speed internet access. It is responsible for detecting and converting the data that eventually gets sent to your computer.
How do cable modems work? Since a coaxial cable has a high data storage capacity, both the internet and cable television can use the same cable. The cable modem takes a data signal and converts it to its digital form. This is the form that your computer reads and eventually converts into data that you can understand.
Where can you purchase a cable modem? You can get a cable modem from your cable company, from a store, online, or secondhand by searching in the classified ads.
How can you compare prices? There are plenty of websites devoted to price comparisons. You can also do the research yourself by looking at individual websites and asking questions at retail stores. Start a spreadsheet to keep track of the information. Once you find a few products that fit your requirements, you can do more in-depth research.
Can you read product reviews? Yes. There are a few ways to find product reviews. Companies offer testimonials as reviews. These opinions may be biased, however. If you want to see both good and bad reviews, you can find a variety of them online or in consumer magazines. You can also ask people in online forums to ask them what they think of a certain product.
These cable modem FAQs should help you make a purchase. Doing research is essential in getting the best product for your money.
Thursday, February 12, 2009
Broadband Modems
Broadband USB Modems are used for accessing internet connection wirelessly. The device is compact and can overcome the flaws of earlier methods. Just by plugging the gadget into the USB port of laptops, users can start accessing internet connection. There is no longer the need of connecting by means of long drawn wires or by 'phone dial ups' for getting connected to the internet.Internet accessibility is thus made easy with broadband. The modems are available with several companies such as Vodafone, 3 Mobile, O2 mobile and others. These service providers of broadband bring quality service and users can really enjoy availing broadband networks. It is also becoming increasingly common to find a free modem with broadband service providers. Most of the UK based broadband providers are known to supply a free modem to their customers. However, if people want to get it from marts, they can find it at amazingly low price.
The cost of Broadband USB Modems are kept cheap so as to enable everyone buy it easily. Customers aspiring to connect wirelessly to broadband without an interruption, can easily do so with the aid of modems. The gadget being very compact can be carried with ease. It easily slides into one's pocket and people can carry it with them wherever they go.Once connected to the internet with the aid of the Broadband USB Modems, it becomes possible for the user to download files of all kind. It can be gaming, music, videos and other sort of files. The users thus can easily store them in the memory of their personal computers. They can later on access these files so as to stay entertained in life. Playing games and listening to music has always been frivolously entertaining for people. Users thus feel delighted to download and store the files for their personal entertainment.
The best thing about modems are that the users do not have to open their computer in-order to install it. Once connected to the USB port of laptops, the drivers are automatically installed on the computer. So, the USB modem is unlike the PCI ADSL modem where the card has to be installed separately in the computer. This actually makes the USB a user-friendly device.Information about the latest modems launched with mobile broadband deals and about companies that offer the gadget can be gained from the internet. One can get detailed information about these modems from various websites. The details include price, availability and features of the device. So, having learned about the gadgets, one can easily place an online order for the modem of their choice. It is possible to find the best modems by placing online orders. Moreover, the gadget is delivered at the residence of the customer after an online order is placed.
The cost of Broadband USB Modems are kept cheap so as to enable everyone buy it easily. Customers aspiring to connect wirelessly to broadband without an interruption, can easily do so with the aid of modems. The gadget being very compact can be carried with ease. It easily slides into one's pocket and people can carry it with them wherever they go.Once connected to the internet with the aid of the Broadband USB Modems, it becomes possible for the user to download files of all kind. It can be gaming, music, videos and other sort of files. The users thus can easily store them in the memory of their personal computers. They can later on access these files so as to stay entertained in life. Playing games and listening to music has always been frivolously entertaining for people. Users thus feel delighted to download and store the files for their personal entertainment.
The best thing about modems are that the users do not have to open their computer in-order to install it. Once connected to the USB port of laptops, the drivers are automatically installed on the computer. So, the USB modem is unlike the PCI ADSL modem where the card has to be installed separately in the computer. This actually makes the USB a user-friendly device.Information about the latest modems launched with mobile broadband deals and about companies that offer the gadget can be gained from the internet. One can get detailed information about these modems from various websites. The details include price, availability and features of the device. So, having learned about the gadgets, one can easily place an online order for the modem of their choice. It is possible to find the best modems by placing online orders. Moreover, the gadget is delivered at the residence of the customer after an online order is placed.
Wednesday, February 11, 2009
ADSL Modems
Users who want to connect to ADSL broadband use the ADSL modem to do so. ADSL modems are a very cost-effective solution for users and are popular across the world, including the US. The ADSL modem enables the transfer of Internet data directly to the computer. The data rates provided by ADSL modems are consistent with North American and European digital hierarchies. Users can purchase these modems from the market with various speed ranges and capabilities. The minimum configuration enables data rates of 1.5 or 2.0 Mbps downstream in a 16 kbps duplex channel. Other configurations offer rates of 6.1 Mbps along with a 64 kbps duplex. One can also opt for products with downstream rates of 8 Mbps and duplex rates of up to 640 kbps.
There are three types of ADSL modems. They are the ethernet ADSL modem, the PCI ADSL modem, and the USB ADSL modem. The ethernet ADSL modem can be fed directly into a PC ethernet port or used to add a modem to certain broadband routers. The PCI ADSL modem fits inside the computer. USB ADSL modems are the most popular form of all ADSL modems, and they are designed for connecting individual computers to ADSL lines.
Now, how does an ADSL modem function? The ADSL modem organizes the stream of aggregate data in blocks. These data are created by multiplexing downstream channels, the duplex channels, and the maintenance channels. While transmitting the data, the ADSL modem attaches an error-correction code to each block. ADSL modems are capable of accommodating ATM transport with variable rates and compensation for ATM overhead, as well as the IP protocols.
ADSL modems can create multiple channels to transfer data. For this, ADSL modems divide the available bandwidth of a telephone line in one of two ways - Frequency Division Multiplexing (FDM) and Echo Cancellation. The FDM assigns one band for upstream data and assigns another band for the downstream data. Further, the downstream path gets sub-divided into one or more high-speed channels by time division multiplexing. Similarly, the upstream path also gets multiplexed into corresponding low-speed channels. Echo Cancellation enables the upstream band to overlap the downstream band. These two bands get separated by means of local echo cancellation. Both Frequency Division Multiplexing (FDM) and Echo Cancellation techniques enable ADSL to split off a 4 kHz region for POTS at the DC end of the band.
However, in spite of the tremendous capabilities of ADSL modems, it is recommended that Internet users using modems should not be awed with the technological capabilities of the modem, and install firewall software for added security.
There are three types of ADSL modems. They are the ethernet ADSL modem, the PCI ADSL modem, and the USB ADSL modem. The ethernet ADSL modem can be fed directly into a PC ethernet port or used to add a modem to certain broadband routers. The PCI ADSL modem fits inside the computer. USB ADSL modems are the most popular form of all ADSL modems, and they are designed for connecting individual computers to ADSL lines.
Now, how does an ADSL modem function? The ADSL modem organizes the stream of aggregate data in blocks. These data are created by multiplexing downstream channels, the duplex channels, and the maintenance channels. While transmitting the data, the ADSL modem attaches an error-correction code to each block. ADSL modems are capable of accommodating ATM transport with variable rates and compensation for ATM overhead, as well as the IP protocols.
ADSL modems can create multiple channels to transfer data. For this, ADSL modems divide the available bandwidth of a telephone line in one of two ways - Frequency Division Multiplexing (FDM) and Echo Cancellation. The FDM assigns one band for upstream data and assigns another band for the downstream data. Further, the downstream path gets sub-divided into one or more high-speed channels by time division multiplexing. Similarly, the upstream path also gets multiplexed into corresponding low-speed channels. Echo Cancellation enables the upstream band to overlap the downstream band. These two bands get separated by means of local echo cancellation. Both Frequency Division Multiplexing (FDM) and Echo Cancellation techniques enable ADSL to split off a 4 kHz region for POTS at the DC end of the band.
However, in spite of the tremendous capabilities of ADSL modems, it is recommended that Internet users using modems should not be awed with the technological capabilities of the modem, and install firewall software for added security.
Tuesday, February 10, 2009
Cable Modems
Cable modems are devices that provide high-speed Internet access using cable television networks.
They are designed to work over TV lines. They are connected to the TV outlet for cable TV transmission and the operator connects a Cable Modem Termination System at the cable company’s main office. The cable modem can be used for fast access to the World Wide Web.
Cable modems are available as an internal, external or set-top box device. An external cable modem is a small box that will have two cable connections, one to the cable wall outlet and the other to a computer through a standard 10Base-T Ethernet card. An internal cable modem is a PCI bus add-in card for a PC. They can only be used in desktop PC’s. The set-top box is a cable modem in a cover, which supplies return channel through the Plain Old Telephone System.
Regular modems use a phone line to dial up and connect with another modem. Cable modems connect your computer to the Internet service provider by translating the networks information so it can be passed back and forth over the cable channel. Cable modems can plug directly into your computer via a USB connection or a network card in your computer. A network card is the hardware that allows you to communicate on a network. In the case of a cable modem connection, it allows your computer to talk with the cable modem. It takes the place of a regular modem in your computer. Just turn the computer on. With a cable modem, your connection is always on. This means that you do not need to dial in. Whenever your computer is on, you are on the Internet, automatically.
Cable modems vary in cost. Since there isn't a universal standard for them, you have to get a cable modem that works with your specific provider. There are many companies who are producing or have announced cable modem products. They include: 3Com, Bay Networks, Com21, General Instrument, Hayes, Hybrid Networks, Motorola, NEC, New Media Communication, neighborhood, Scientific Atlanta, Terayon, Toshiba, U.S. Robotics and Zenith.
They are designed to work over TV lines. They are connected to the TV outlet for cable TV transmission and the operator connects a Cable Modem Termination System at the cable company’s main office. The cable modem can be used for fast access to the World Wide Web.
Cable modems are available as an internal, external or set-top box device. An external cable modem is a small box that will have two cable connections, one to the cable wall outlet and the other to a computer through a standard 10Base-T Ethernet card. An internal cable modem is a PCI bus add-in card for a PC. They can only be used in desktop PC’s. The set-top box is a cable modem in a cover, which supplies return channel through the Plain Old Telephone System.
Regular modems use a phone line to dial up and connect with another modem. Cable modems connect your computer to the Internet service provider by translating the networks information so it can be passed back and forth over the cable channel. Cable modems can plug directly into your computer via a USB connection or a network card in your computer. A network card is the hardware that allows you to communicate on a network. In the case of a cable modem connection, it allows your computer to talk with the cable modem. It takes the place of a regular modem in your computer. Just turn the computer on. With a cable modem, your connection is always on. This means that you do not need to dial in. Whenever your computer is on, you are on the Internet, automatically.
Cable modems vary in cost. Since there isn't a universal standard for them, you have to get a cable modem that works with your specific provider. There are many companies who are producing or have announced cable modem products. They include: 3Com, Bay Networks, Com21, General Instrument, Hayes, Hybrid Networks, Motorola, NEC, New Media Communication, neighborhood, Scientific Atlanta, Terayon, Toshiba, U.S. Robotics and Zenith.
Monday, February 9, 2009
Ethernet Modems
Ethernet Modem allows any modem communications applications to interact via LAN or the Internet. Application "dials" remote IP address instead of making a dial-direct call using hardware modem. Moreover, it looks as if the application worked with hardware modem. But in fact, a hardware modem is not used.
Usually hardware modems are used to connect communications applications over standard phone lines. Here comes the pain and our 10 reasons to get rid of hardware:
1. Phone line and modem hardware are required. You need a phone line and a modem beside each computer from which you want to establish modem connection.
2. Phone call charges. You have to pay for each phone call. It's even worse if you make international phone calls.
3. Busy phone line. You cannot use your phone line for other purposes while using modem connection.
4. Unreliability of phone connection. Besides phone connections are not reliable, they are low-speed.
5. Too stressful thus complicated.
Ethernet modem is the only solution to get rid of the above mentioned pains. Let's compare what the program can bring:
1. Automatically network-enables modem communications applications without software changes.
2. No charges for phone calls.
3. Neither phone line nor modem required.
4. Speed is far higher then hardware modems have.
5. Location-independent. Virtual Modem can be used anywhere in the world where Internet access is available.
6. You can limit network access to your virtual modem using any firewall software.
Ethernet modems are successfully used in such spheres as financial systems, credit card transaction, legal information database access, real estate information systems, device control and data acquisition, building automation, security systems.
Usually hardware modems are used to connect communications applications over standard phone lines. Here comes the pain and our 10 reasons to get rid of hardware:
1. Phone line and modem hardware are required. You need a phone line and a modem beside each computer from which you want to establish modem connection.
2. Phone call charges. You have to pay for each phone call. It's even worse if you make international phone calls.
3. Busy phone line. You cannot use your phone line for other purposes while using modem connection.
4. Unreliability of phone connection. Besides phone connections are not reliable, they are low-speed.
5. Too stressful thus complicated.
Ethernet modem is the only solution to get rid of the above mentioned pains. Let's compare what the program can bring:
1. Automatically network-enables modem communications applications without software changes.
2. No charges for phone calls.
3. Neither phone line nor modem required.
4. Speed is far higher then hardware modems have.
5. Location-independent. Virtual Modem can be used anywhere in the world where Internet access is available.
6. You can limit network access to your virtual modem using any firewall software.
Ethernet modems are successfully used in such spheres as financial systems, credit card transaction, legal information database access, real estate information systems, device control and data acquisition, building automation, security systems.
Friday, February 6, 2009
Modem Problems?
When it comes to diagnosing the modem and any other computer problem,always start with the most obvious first.Modem problems may be repaired as fast as re-booting the computer or can be as complex as resolving hardware conflicts.
First remember to check for the most obvious signs of trouble,such as loose connections at the rear of the computer for external modems.
Internal modems may have their retaining screw at the expansion slot loose are missing.Phone line connections may simply be inserted in the wrong connector.
Nearly all internal modems are inserted into the PCI or Peripheral Component Interconnect slot in the system unit.
NO POWER AT THE MODEM
For Internal Modems,first try inserting the modem in a different PCI Slot.Reboot the computer and click on Start,Control Panel,and click the Phone And Modems icon if you have Windows XP as your operating system.
Then click on modems,properties,and look for the statement "This Device Is Working Properly". You can click on Diagnostics and run a test to see if the modem has power as well.
External modems can be checked for power by inspecting the adapter plug to see if it is plugged in completely.Look to see if any indicator lights flashing and be certain you are using the adapter for your modem.
Be sure the surge protector or wall outlet is providing power by plugging in a lamp or a radio.If the radio works,the culprit may be the adapter or the external modem itself.
If you purchased the modem in your town,you may have the chance to return to the store and ask the technician to test it with a known good power adapter.You can been replace either the adapter or modem.
MODEM DISCONNECTS OFTEN
If your modem,whether internal or external,is working but disconnects from the Internet very often,without warning,check to be sure your call waiting option is not enabled.
Another culprit that cause this headache is line noise.This noise and interference can be caused by such things as loose wiring.
Poor waterproofing,old wiring,worn phone jacks are some causes that will result in line noise. Make sure no other equipment is using the same line that your modem is on.
Be sure other devices as your fax machine, answering machines or even security alarms are not sharing the same line as your modem.
Other PCI devices may be causing conflicts with your modem.Clicking the Control Panel ,and clicking the modem icon will show the message "This Device Has A Problem" or somthing similar if there is a conflict.
Windows will offer ways to resolve the conflict. Take the time to carefully follow instructions tocorrect any conflicts that may be present.
Loose data lines for Internal modems and loose or damaged connectors for External modems can cause data lost as well.Visual check and double check these connections.
MODEM IS PRESENT BUT WILL NOT WORK
The external and internal modem must have device drivers installed before they will work. Bad or incorrect drivers can cause the modem to disconnect as well as not work at all
If you noticed that the device driver was either missing or corrupt in the modem icon,follow the instructions to update the device driver.
If some cases,you may have to completely remove the old modem from thw Windows Device Manager.
Once it has been removed from Windows, reboot the computer and Windows will detect the modem and automatically re-installs the the device driver.
If your modem came with an installation cdrom or diskette,use the software the disk rather than the one in Windows.
Once you are up and running,the first thing you should do is to visit the modem's support web site and search for any software patches or updated drivers to download.
COMMON BROADBAND PROBLEMS
The most common high speed internet problems whether its dsl or cable connections are not being able to log on and poor signal.
If the Cable modem often reboots,you should check to see if your signal indicator is strong.If the signal seems good,electronic signal from mobile phones and other devices nearby may be interfering with the signal.
Stop and look behind the cable or dsl modem to see if the connections have worked themselves loose or have come off completely.Be sure the connections have not be damaged in any way.
The modem is connected to an Ethernet card which will receive and send signals to the computer.Look at the rear of the card and see if the green indicator is on.If not,there is a problem with the card installation or the card may be faulty.
If the ehthernet card in the computer become loose, your high speed Internet reception will be interruppted. Place a finger on the ethernet card and try to move it. If you can,open the system unit case and tighten the card.
If the ethernet card has become loose,it may be a good idea to remove it and inspect the yellow contacts to be certain they are not dirty or damaged.Power will not transfer to the card should this be the case.
Other causes may be the main wiring to the modem may be faulty.The vacuum cleaner or the power tools your son is using in the garage may be causing the problem as well.And we cannot omit the idea that the cable or dsl modem themselves may be faulty.
While you're learning about your computer,understand the modem at every level and do so now while it is still in good operating order.Print or write down modem and all troubleshooting tips.
Put these troubleshooting tips in a binder or at least in a safe place so you can refer to them should your PC fail to boot.Knowing about your computer takes time and effect but you be glad you took the time should your system goes on the blink.
First remember to check for the most obvious signs of trouble,such as loose connections at the rear of the computer for external modems.
Internal modems may have their retaining screw at the expansion slot loose are missing.Phone line connections may simply be inserted in the wrong connector.
Nearly all internal modems are inserted into the PCI or Peripheral Component Interconnect slot in the system unit.
NO POWER AT THE MODEM
For Internal Modems,first try inserting the modem in a different PCI Slot.Reboot the computer and click on Start,Control Panel,and click the Phone And Modems icon if you have Windows XP as your operating system.
Then click on modems,properties,and look for the statement "This Device Is Working Properly". You can click on Diagnostics and run a test to see if the modem has power as well.
External modems can be checked for power by inspecting the adapter plug to see if it is plugged in completely.Look to see if any indicator lights flashing and be certain you are using the adapter for your modem.
Be sure the surge protector or wall outlet is providing power by plugging in a lamp or a radio.If the radio works,the culprit may be the adapter or the external modem itself.
If you purchased the modem in your town,you may have the chance to return to the store and ask the technician to test it with a known good power adapter.You can been replace either the adapter or modem.
MODEM DISCONNECTS OFTEN
If your modem,whether internal or external,is working but disconnects from the Internet very often,without warning,check to be sure your call waiting option is not enabled.
Another culprit that cause this headache is line noise.This noise and interference can be caused by such things as loose wiring.
Poor waterproofing,old wiring,worn phone jacks are some causes that will result in line noise. Make sure no other equipment is using the same line that your modem is on.
Be sure other devices as your fax machine, answering machines or even security alarms are not sharing the same line as your modem.
Other PCI devices may be causing conflicts with your modem.Clicking the Control Panel ,and clicking the modem icon will show the message "This Device Has A Problem" or somthing similar if there is a conflict.
Windows will offer ways to resolve the conflict. Take the time to carefully follow instructions tocorrect any conflicts that may be present.
Loose data lines for Internal modems and loose or damaged connectors for External modems can cause data lost as well.Visual check and double check these connections.
MODEM IS PRESENT BUT WILL NOT WORK
The external and internal modem must have device drivers installed before they will work. Bad or incorrect drivers can cause the modem to disconnect as well as not work at all
If you noticed that the device driver was either missing or corrupt in the modem icon,follow the instructions to update the device driver.
If some cases,you may have to completely remove the old modem from thw Windows Device Manager.
Once it has been removed from Windows, reboot the computer and Windows will detect the modem and automatically re-installs the the device driver.
If your modem came with an installation cdrom or diskette,use the software the disk rather than the one in Windows.
Once you are up and running,the first thing you should do is to visit the modem's support web site and search for any software patches or updated drivers to download.
COMMON BROADBAND PROBLEMS
The most common high speed internet problems whether its dsl or cable connections are not being able to log on and poor signal.
If the Cable modem often reboots,you should check to see if your signal indicator is strong.If the signal seems good,electronic signal from mobile phones and other devices nearby may be interfering with the signal.
Stop and look behind the cable or dsl modem to see if the connections have worked themselves loose or have come off completely.Be sure the connections have not be damaged in any way.
The modem is connected to an Ethernet card which will receive and send signals to the computer.Look at the rear of the card and see if the green indicator is on.If not,there is a problem with the card installation or the card may be faulty.
If the ehthernet card in the computer become loose, your high speed Internet reception will be interruppted. Place a finger on the ethernet card and try to move it. If you can,open the system unit case and tighten the card.
If the ethernet card has become loose,it may be a good idea to remove it and inspect the yellow contacts to be certain they are not dirty or damaged.Power will not transfer to the card should this be the case.
Other causes may be the main wiring to the modem may be faulty.The vacuum cleaner or the power tools your son is using in the garage may be causing the problem as well.And we cannot omit the idea that the cable or dsl modem themselves may be faulty.
While you're learning about your computer,understand the modem at every level and do so now while it is still in good operating order.Print or write down modem and all troubleshooting tips.
Put these troubleshooting tips in a binder or at least in a safe place so you can refer to them should your PC fail to boot.Knowing about your computer takes time and effect but you be glad you took the time should your system goes on the blink.
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