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Registry Hacking - Win95 / Win98 | Ok, So What is Bandwidth?
Simple. Bandwidth is the amount of data that can be transmitted via a given communications channel (such as a computer network) in a given unit of time (generally one second). What does that mean? It means that all internet connections are limited to a certain amount of data transfers over time. For example, if you try to download too many files at once, your internet connection becomes lagged. Why? Because the speed of your dialup connection (assuming you are on a dialup) cannot handle transferring that amount of data at once. If you upgraded to a higher bandwidth connection, ie: a cable modem, then you would be able to download more files before becoming lagged. How Is Bandwidth Measured? ALL connections to the internet are limited in the same way. We measure dialups by kilobytes per second (Kbps), thus 14.4k, 28.8k, 33.6k, 56k, 64k, 128k. A kilobyte is a measurement of storage capacity equal to approximately 1024 bytes. We measure other connections in megabits per second (mbps). A megabit is a measurement of storage capacity equal to approximately 1 million bits (1,048,576). What Is a Hop and a Backbone? A backbone is a high-speed, high-capacity medium designed to transfer data over thousands of miles. The internet is made of an enormous system of linked backbones. A hop is the path that data travels from one router to the next. A router is an electronic device that examines each packet of data it receives and then decides which way to send it onward toward its destination. So that the data can reach the backbone, several hops may be necessary. Hops require processing time. When the message must be read and passed on by several routers before it reaches its destination it can result in jitter. Jitter is an annoying and perceptible variation in the time it takes various "workstations" to respond to messages. Some respond quickly, while some respond slowly. What Does All of This Mean to Me? When you are looking at buying a shell you need to know its bandwidth and possibly how many hops it is from its backbone connection. Now you know what the measurements mean, what a backbone is, and what hops mean. Let's move on the the different types of connections and their speeds. If you either understand or don't care about dialup, ISDN, ASDL, or Cable connections, skip to here. Dedicated or Non-Dedicated?
Dialup
Connections are connections that are established when a user calls into
the system that connects them to the backbone and then to the internet.
They are:
P.S. If you are wondering why 1 kilobyte isnt equal to 1,000 bytes and one megabyte isnt equal to one million bytes, here is your answer. The computer world is based on twos, not tens. Two to the tenth power equals 1024. Because one byte is the same as one character in personal computing, 1K of data can contain 1024 characters. Want to know the difference between a byte and a bit? Eight bits make a byte :) |
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