Your Internet Speed
☆ What is Internet Speed?
Internet speed, the number they give you (5 Mbps, for example), has nothing to do with how fast your internet works. It's not like a car or motorcycle where you can measure how fast it goes in miles per hour (mph).
Instead, internet speed is your (allocated) bandwidth. Bandwidth is the amount of data that can be sent to you, usually measured in seconds. For example, 5 Mbps would mean that you can receive up to 5 megabits of data per second.
How Does Bandwidth Work?
The best way to explain (and understand) how bandwidth (and your internet speed) works is by using an analogy.
Think of bandwidth like a freeway. All cars (data) travel at the same speed, so to get more data from the internet to your computer faster, the freeway needs to be wider.
In other words, say 1 Mbps is the equivalent to a 1 lane freeway. And let's say that you were trying to download an image, which is 5 Mb in size. So if you had a bandwidth of 1 Mbps (1 lane freeway) it would take you roughly 5 seconds to download the image.
Now let's say that you have a 5 Mbps (bandwidth) connection, or a 5 lane freeway. How fast will you receive your image? 1 second.
☆ What is Bandwidth & How Does Bandwidth Work?
More bandwidth means that you'll receive more data at the same time. In this example, you can download 5 images with the wider bandwidth in the same time you could 1 with the narrower bandwidth.
What's important to note here, and this confuses a lot of people, is that your internet isn't any faster from 1 Mbps to 5 Mbps, or however much bandwidth your connection has. Your data is just transferred to you at a faster rate because more data can be sent at the same time. It's more efficient, making your internet perceptually faster, not technically faster.
All of that said, there isn't just one internet speed. However, real "internet speed" has to do with latency and that topic is outside the scope of this particular article.
☆ What is kbps, mbps, MBps and gbps?
Another confusing aspect of shopping for internet based on speeds are all the terms or abbreviations being used. Mbps, MBps, kbps, Gbps; what does all of this mean?
These are the abbreviations for the amount of data that is being sent per second. Here is what each of them mean. Below that We have outlined a basic conversion guide and a rough idea as to how big each piece of data you consume is.
kbps - Kilobits per second. This is used when talking about dialup (56k for example) and low speed DSL.
Mbps or mbps - Megabits per second. Some people confuse this with megabytes. The difference between the two is how the "b" is written in the abbreviation; Mbps = megabits and MBps = megabytes. This is the most common unit of speed used.
MBps - Megabytes per second. Megabytes aren't usually used in (residential) internet plans.
gbps - Gigabits per second. Gigabits are hardly used for internet plans, and the costs make them unpractical for families and small businesses.
Converting Units of Internet Bandwidth
To give you a better idea how much bigger or small each unit of speed (bandwidth) is, here is a handy conversion chart. You can also visit Numion and play with their calculator.
Bytes ==> Bits: Multiply by 8
Bits ==> Bytes: Divide by 8
Mega ==> Kilo: Multiply by 1,000
Kilo ==> Mega: Divide by 1,000
Giga ==> Mega: Multiply by 1,000
Mega ==> Giga: Divide by 1,000
Giga ==>Kilo: Multiply by 1,000,000
Kilo ==> Giga: Divide by 1,000,000
☆ Units of Bandwidth & The Data You Use
Here are some things that you do on the internet and how much bandwidth (and data) it uses up:
1 Web Page - 1 MB
1 Text Email - .97 MB
10 Min YouTube Video - 43 MB
Download 1 Image - 2.5 MB
30 Min of Gaming - 2.5 MB
What is the Difference Between Upload and Download Speeds?
Another confusing thing about shopping for internet is when you see speeds listed like this:
What does this mean? Well, that means that internet plan has a download speed of 5 mbps and an upload speed of 1 mbps.
The reason why your upload and download speed are different is because most internet connections are asymmetric. In English this means that the bandwidth is a different size going one way compared to the other. Since most users consume content rather than upload it, the bandwidth for download speeds is larger (than the upload).
☆ What Affects My Internet Speed?
There are a number of things that will (negatively) affect the speed of your internet.
☆ Connection Type
Connection type plays a big role in how fast of an internet connection you'll have. Using my analogy from earlier, some roads (bandwidth) are fixed or capped - they can't be widened or increased. Dialup, and to some extent DSL, are perfect examples of this.
☆ Traffic Congestion
Your internet can become congested just like a freeway can. The more data (or cars) that is being requested and sent, the more bandwidth (freeway lanes) that is being used at one time. At some point every lane is going to be taken up, so the cars (data) will take more time to get to you.
Congestion usually happens during peak usage times, like when everyone gets off work and logs onto the internet. But you can also experience slower speeds if you have a home network (and everyone is online) or someone using your wireless connection from outside your home.
☆Bad/Old Wires, Connections or Equipment
Think of bad wires and connections like a freeway that goes from 5 lines to 1 all of a sudden. That forces all of the cars (data) to bottleneck, ultimately taking longer to get to you.
The same thing holds true for your equipment. If you have outdated equipment, or your equipment isn't configured optimally, that can slow down how fast you receive your data.
The further away you are from your ISP (hub) the longer it'll take for the data to transfer from the internet to your computer.
☆ In Summary
★DOWNLOAD SPEED generally determines how fast your PC brings up websites or how fast pages load. It also will determine if your Netflix rebuffers during movies. If you have low bandwidth chances are, you can increase it through your internet provider for faster internet speed.
★ WiFi (wireless LAN) - WiFi signal strength varies due to distance, obstacles, and interfering signals, and poorer signal strength means less bandwidth. Using a wired LAN (Ethernet) connection will provide a more reliable speed.
★ Shared internet - If multiple PCs are sharing a common internet connection, the bandwidth used by other users on your local network is subtracted from the overall available bandwidth. For example, if you are buying a 10 Mbps internet connection and another user at your location starts using 5 Mbps for streaming video, you will only have 5 Mbps remaining.