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Cable Internet
Cable internet is a common high-speed broadband internet connection for home use. Questions about this type of connection and the technologies involved belong here.
1,581 Questions
What is the main function of a modem in regards to a computer?
The modem on a computer translates digital signals into an analogue 'noise', and transmits it down a telephone line.
This is received by another modem at the other end, which captures the signals, and converts them back into data.
It allows for transmission of digital data over an analogue telephone line.
What is the purpose of a gateway?
Gateway is software placed in the router. Its function is protocol translation. When we need to connect two networks based on different protocols, then gateway is used by default. It acts as an entrance To see the default gateway of your system in cmd (command prompt), type "ipconfig." It shows the default gateway.
What uses a half duplex communication?
Duplex is a way devices like computer talk to each other. Half Duplex is only sending the information one time and hoping the information gets to the other end in a complete form. Full Duplex is sending a short piece of the message to the other end and waiting to tell if it is properly received before sending the next small piece of information.
Asymmetric Digital Subscriber Line ADSL connections are becoming more and more widely available and can provide an excellent internet connection. The connections work by splitting your phone line into two separate channels, one for data (internet) and one for voice (phone calls) which means you can talk on the phone and be connected to the internet at the same time. You will often see ADSL connection services advertised as having different speed specifications, below are some common configurations:
- 56Kbps/128Kbps
- 512Kbps/128Kbps
- 1Mbps/256Kbps Notice there are two values to each configuration, the first figure states the download speed and the second figure is the maximum upload speed. The acronym 'ADSL" stands for Asynchronus Digital Subscriber Line.
Asynchronous means that data rates for Upstream Throughput (transmission from your PC to the internet) and Downstream Throughput (Transmission from the internet to your PC) are not equal. Usually the downstream rate is 5-10 times faster than the upstream.
For most home users, this is preferred, as they will be receiving much more information than they will be sending.
Business users and Web designers may benefit more by SDSL (Synchronous DSL), where the upstream and downstream throughputs are the same, allowing for faster uploads, with a minor sacrifice in download speed.
How do you reset Cisco router password?
Power on the router and press the reset switch for 30 second which is located bottom of the router, after restart the router and it will asked u to give the user name and password for use. By default the user name : Admin & the password : Admin.
What are the three main part of the computer system?
CPU, RAM and the FSB which links them together, if you want to get detailed. The BIOS and CMOS are what gets the Operating System (Windows) talking to everything. Don't forget about what all these sit on - the holy motherboard. Then you have all the proprietaries - Hard Drives, DVD Drives, etc. Happy to Help 'Matt
To be clear on the matter, 1TB, that is one Terabyte, is equal to 1,000,097,181,696 Bytes. 1GB, that is one Gigabyte, is equal to 1073741823 Bytes. When you divide the number of bytes in 1TB by the number of bytes in one GB, the answer is 931.413GB so doubling this answer, i.e. multiply by 2, one gets 1862.826GB in a 2TB HDD, and not 2048.
Do you need a phone line for dsl?
The first step in deploying wireless broadband is to get broadband service to your location. Broadband service is delivered by an ISP--Internet service provider--and can come to your home or place of business in different ways. The phone line is just one of many options today: * via a telephone line (DSL) * via the TV cable * via satellite * via a T-1 or T-3 dedicated circuit * via cellular wireless. Every one of these services will (or can*) terminate in a device that will provide one or more network ports, usually RJ-45 type. The high-speed network is available at that port, into which you can plug a computer, a router, a switch, other networked equipment, or a wireless router. The wireless router will have several network ports into which you can direct-connect networked devices (PCs, printers, VOIP devices, etc.). Plus the wireless router is your wireless access point, capable of communicating Ethernet traffic wirelessly to over a hundred different devices. Each device of course needs a wireless adapter to uphold its end of the communication and must be within range of the wireless router. So we see that it's quite possible to subscribe to a broadband service and supply wireless broadband access at your location without a telephone access point. _______________ * The cellular wireless access-point device usually plugs directly into a computer.
What is a wire used to connect some computer to the internet?
An "Ethernet" cable. These are different size from normal telephone cables/connectors. They are usually yellow or green in color. You are also going to need a modem or modem/router to receive the internet feed from either a cable company, telephone wire, or DSL.
When was high speed internet invented?
Developed in the 1950's for use by the telephone companies, the T1 line is the basic digital line service for business applications. It has a fixed 1.5 Mbps bandwidth in each direction. That bandwidth can be allocated to network data, converged VoIP and computer data, or segregated into 24 individual standard telephone channels. If you need more bandwidth, T1 lines can be bonded to create typically 2x to 9x the individual line capacity. Usually higher bandwidth needs that these are assigned to DS3 circuits at 45 Mbps for cost reasons. However, in remote locations where there is no installed DS3 service, it might be cheaper to install multiple bonded T1 lines to get the required bandwidth. T3 bandwidth provides data transfer speeds of 45 megabits per second (mbps) and contains 672 individual channels that are each equal to voice grade telephone lines, capable of transmitting online video shoots, real time video, and large databases over a busy network. T3 bandwidth is by and large, used in large universities and companies that have large number of users in the same network.
What are two components are required to set up an Internet connection?
The basic components of a network are:
Internet Service Provider
A router/hub or a server where you can connect either wired or wireless or both
A networking software
Personal Computer
Well, you can create a network between computers without the internet. But be sure that all wires are connected and the modem(comes with your ISP) is working if you're using wired connection. If you're using Wi-Fi, be sure that all your PCs are Wi-Fi enabled if ever they have those features.
There should be a Network and Sharing Center in the Control Panel where you can set up your network options and configure it depending on what connection plan you have. Just follow up the wizard and enter the necessary information (most of the the time given by your ISP).
A modem is the device that allows you to connect to the Internet. A router uses wires to connects from the modem to other computers to share the Internet connection. A wireless router uses wires to connect to the modem but connects to the other computers through a wireless connection. A modem with a built in wireless router only uses wires to connect it to the internet source meaning you can place it any where in the house that has access to an Internet source.
1000 X 1.8 = 1800 Mb (using conventional meaning of Giga, which is what hard drive manufacturers use in order to sell you less than advertised using the correct computer notation below)
1024x1.8 = 1843.2 MB is the correct answer using base 2 which is what most computer manufacturers use (1 GB of memory is 2^10 or 1024 MB of memory).
What is the data transmission rate in the fiber optic cable?
Bell labs has managed to break the Petabit barrier, they have achieved a speed of 15.5 Tbit/s over a single 7000 km fiber. Now one must keep in mind this was multiplexed over hundreds of channels and was a single mode cable.
The maximum realistic speed application on single mode fiber cable is about 10gb speed. There are standards for 100 gigabit over multimode fiber and single mode, but those are not widely in use at the moment.
My compter has a Slow buffering how can speed it up?
Simple. But you have many choices.
1. If you're using a type of internet such as Internet Explorer, that may be the reason. Even if it is Mozilla Firefox.
If you wish to change that type of internet, you can download 2 other types of internets.
The first is Mozilla Firefox. It is high speed for most computers.
Or (my favorite) Google Chrome. You can go straight to the Goggle Home Page and then by the top, right corner, it should say that you can download Google Chrome.
Google Chrome is amazing. It is HD + High Speed and totally amazing! :)
What do you call a computer on a network that requests files from another computer?
The computer on a network that requests from another computer is called the client.
Upstream is how fast a host(user) Internet server sends data to the network. Ex When one plays a game ( hitting buttons etc) or types data in on the pc, that persons is sending data to the network. The network process this data at a certain speed. So how fast ones Internet service provider (ISP) sends a host(user) 's data to the network is called upstream and how fast the network send data to the ISP then to the host is called downstream.
A null modem cable is a cable which connects two computers directly. The connection is made using serial interface and actually requires no modem or phone line. These connections can be useful for some legacy applications, however due to the availability of low cost networking equipment null modem connections are now rarely used.
Do you need a wireless card in computer to use a wireless router?
Yes. There are loads of different ones on the market, from internal ones to external ones.
Personally I recommend external USB ones.
Internal ones are good too, but take up a PCI slot thatcould be given to something more worthwhile. Most home users cant install them. And, if and when you get a second desktop, you cant share the device.
What are the advantages and disadvantages of wireless internet connection?
It's usually cheaper, with about the same bandwidth, does not require as much planning and work spent on installation.
Suffers from EMI, walls, metal grids decrease the range dramatically.
Do you need a modem when using DSL?
You do not need a dial-up modem. However, you will need to either purchase or rent a DSL modem, which works differently from a dial-up modem, and is usually outside the computer.
How IC 7402 can be connected to use NOR gate?
IC 7402 is different from the other type of IC like 7404,7408,7432 and 7400 when it is connected to have an output desired... if you noticed all i mentioned ic is connected from left to the right.
input pin 1 and 2, output pin 3
input pin 4 and 5, output pin 6
input pin 13 and 12, output pin 11
input pin 10 and 9, output pin 8
while in nor gate, to have the desired output it must be connected from right to left...
input pin 2 and 3, output pin 1
input pin 5 and 6, output pin 4
input pin 8 and 9, output pin 10
input pin 11 and 12, output pin 13
How do you delete a wegmans account?
I've read over their FAQ's, and it seems like you cannot delete or cancel it.
Can you keep your phone and internet and drop your cable tv?
There are two ways that I know of that you can get your own internet connection without a phone line or cable TV.
1) With a public WiFi connection in a hot spot.
These are available in various locations inclduing pubs, cafes and certain phone boxes operated by BT in the UK provide WiFi access to passing compatible devices, however the coverage is limited and it is very expensive compared to...
2) Connecting a mobile phone or mobile modem to your computer.
The majority of these require a fixed term contract. Indeed, in the UK only Three offer a Pay As You Go option. The mobile network is much more available although unless you have access to a 3G signal it can be very slow. The disadvantages of this are that a monthly contract is required and if you are paying a fixed rate for a certain amount of bandwidth followed by a more expensive per megabyte rate you need to watch what you're downloading. If you can find a Pay As You Go operator with a reasonable unlimited broadband rate and can find a USB modem SIM-free then it can be very cost-effective with a one-off payment with only the charges for the bandwidth you use at a much cheaper rate than public WiFi hotspots.
3) WiMax & Satellite
There are also other wireless solutions available that do not require a mobile phone. Clear.com offers limited Wimax coverage in several US cities and satellite internet providers can give you service in remote areas.
Other than that you maybe able to find public internet terminals where you are, but bear in mind that this is not your internet connection and will be very likely blocked or filtered, especially in a public library.
Also, while this information relates particularly to the UK as this is where the contributor is from, you may be able to find similar options in your country, check for WiFi coverage and with your local mobile operators.
