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| Thread ID: 55026 | 2005-03-01 00:36:00 | How fast is the speed of light... in GB/s? | hamstar (4) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 329182 | 2005-03-01 00:36:00 | How fast would the speed of light be in GB/s? Simple question. Anyone know? Electricity is almost the speed of light apparently... |
hamstar (4) | ||
| 329183 | 2005-03-01 00:41:00 | How fast would the speed of light be in GB/s? Simple question. Anyone know? Electricity is almost the speed of light apparently... Have you not heard of google?186000 miles a second. |
Cicero (40) | ||
| 329184 | 2005-03-01 00:49:00 | wat?! the speed of light in 300,000 km/s but wat is it in GB/s? or TB/s? or PB/s? |
hamstar (4) | ||
| 329185 | 2005-03-01 00:50:00 | Its the equilivent of an AMD 64 4000+. Muhahahaha |
Metla (12) | ||
| 329186 | 2005-03-01 00:57:00 | How fast would the speed of light be in GB/s? Simple question . Anyone know? Electricity is almost the speed of light apparently . . . The need for a 10 Gb/s fiber technology Until recently, 10 Gb/s fiber solutions were envisaged as potential options only for expensive singlemode fiber-optic implementations . Why? Because at these speeds, we are definitely in the realm of laser transmission technology . However, breakthroughs in laser and fiber technology have, and are continuing to change this . Transceivers based on VCSEL (vertical cavity surface emitting lasers) now offer the high switching speeds of laser systems at costs closer to those of systems using LEDs (light emitting diodes . Coupled with this, new multimode fibers, that are laser optimized to allow VCSEL technology to form part of a complete 10 gigabit LAN solution, can provide all the bandwidth VCSEL electronics need at an affordable price . A laser optimized multimode fiber solution, that enables the use of a simpler and less expensive serial solution and which achieves 10 Gb/s transmission with the use of a single VCSEL source in the transceiver at each end of the fiber is the ideal solution . |
Cicero (40) | ||
| 329187 | 2005-03-01 01:40:00 | Cicero, you really ought to provide a link to the source of your copied information, you know. ;) | FoxyMX (5) | ||
| 329188 | 2005-03-01 02:03:00 | wat?! the speed of light in 300,000 km/s but wat is it in GB/s? or TB/s? or PB/s? You are asking for a comparison of two different things. GB/s is a data rate over time, e.g a volume of data (GB) in a given time (s). Speed of light is a linear speed, no volume is involved. Perhaps rephrase your question as "how fast is a litre of water per second"? It makes about as much sense. |
godfather (25) | ||
| 329189 | 2005-03-01 02:05:00 | Electricity and light are both electromagnetic waves . They travel at "C" -- about 300 000 km/s (that's about "a foot a nanosecond") in vacuum . Dielectrics around conductors or "non-vacuum" transmission channels for light slow the waves down . Coaxial cable has a velocity factor of about 0 . 66; "TV ribbon" about 0 . 82 . Speed has the dimensions distance/time . A "GB" is a count ; it's not a distance . So the question has no answer . If you are looking for a theoretical limit of the bandwidth of an optical link, you could start from the fact that the frequency of light is equal to C/wavelength . Light (assumed to be coherent froma laser) with a wavelength 600nm ( 600x10^-9 m) has a frequency of 0 . 5 x 10^16 Hz . I've done cassette tape computer interfaces which used a couple of cycles of 2400 or 4800Hz to indicate bits . I switched that with standard TTL . But I don't think it's easy to switch light (or anything) in 10^-14 secs or so . Or cheap . |
Graham L (2) | ||
| 329190 | 2005-03-01 02:19:00 | Cicero, you really ought to provide a link to the source of your copied information, you know. ;) Those are my own words mate,or inthe words of Metla, Muhahahaha. |
Cicero (40) | ||
| 329191 | 2005-03-01 02:25:00 | so.....You wrote this article? www.systimax.com |
Metla (12) | ||
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