Is modulation needed for digital data transmission?
Modulation is only required if the data is being sent over a radio wave, or a laser beam.
And even in the case of a laser, if you are content with on/off data streams, then there is no underlying signal to be modulated.
Essentially all of the data whizzing round in your computer is doing so without the benefit(?) of a carrier - the wires are sufficient.
When was the Internet up and running?
The internet is up and running when it doesn't need to be rebooted.
Analog system simulation is more sensitive to the changes in the parameters compared to the digital system. This is because of the continuous nature of the analog signals, unlike the discreet nature of the digital signals. Digital systems have gates which can not be used in Analog system.
Where can you watch samurai x episodes free online?
I think really any anime watching site.
Try Animesquish.com
What devices are needed to create an ad hoc connection and what mode does this type of network use?
An ad-hoc network is a wireless network in which all connections are wireless. The only devices required are wireless network interface cards in all of the devices that want to participate in the network.
Spreading information incredibly quick.
Oppressive governments can't turn it off when citizen's are protesting the current administration.
Organizations such as Wikileaks has a platform to reveal truth to the world.
How many inputs has the NOT gates?
A standard NOT gate will have just one input. It will change its value to the opposite digital value for the output.
What are the advantages and disadvantages of a digital signal over an analog signal?
A digital signal is just a sequence of numbers, so a digital signal can be stored, transmitted, and reproduced exactly - every copy is the same as the original. Mathematics can be used to detect and correct errors. However, with noise or weak reception, a digital signal degrades much less gracefully than analog.
A digital transmission is in the form of a sequence of "true" / "false" settings - commonly described as "zeroes" and "ones" - at a steady signal amplitude (meaning "volume" or "strength") whereby a machine be programmed to make decisions on its contents.
On the other hand, an analog signal can be transmitted either at variable amplitude levels to convey the information (as in AM, meaning Amplitude Modulation) or at a steady amplitude but with varying frequencies to convey the information (as in FM, meaning Frequency Modulation). If the overall signal amplitude varies a lot - especially if it gets either very weak or overwhelmingly much too strong - many ambiguities of interpretation can come into play which will greatly affect the type of automatic machine decision-making that can be done.
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The question of digital technology is rather broader than that on just tv models because several other devices use this mode of technology too.
Digital technology has several advantages among which are;
- enables transmission of signals over a long distance.
- transmission is at a higher rate and with a wider broadband width.
- it is more secure.
- it is also easier to translate human audio and video signals and other messages into machine language.
- there is minimal electromagnetic interference in digital technology.
- it enables multi-directional transmission simultaneously.
On the other hand it also has some setbacks and disadvantages.
Basically, the previous answer that was based on tv models helps to guide one in understanding the general picture of digital technologies but is not applicable to all the other devices that use digital technology.
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Mathematics tells me that there no digital infinity while analog can almost approach it.
How I Can configure telenet tndsl 2120 Adsl2 Router modem to connect bsnl broadband service?
http://wiki.answers.com/Q/How_I_Can_configure_telenet_tndsl_2120_Adsl2_Router_modem_to_connect_bsnl_broadband_service"
Is xor gate is a universal gate?
No, XOR gate is a not a universal gate. There are basically two universal gates NAND and NOR.
MBs is faster than KBs. If you're just doing email, look for something over 1Mbps, meaning one megabit per second. For gaming, go for 5-10Mbps.
How do you connect a PC and a lab top to a Motorola surfboard sbv5220 cable modem?
You need to buy a wireless router than has ethernet port if you want to connect a PC and a laptop to a Motorola surfboard sbv5220 cable modem.
Can I combine two computers to work as one to be stronger?
I honestly don't know; I've been trying to do the same thing for a little while. If you get a solution, can you tell me at aforsberg@eskimobob.com please?
thanks man
If you mean for sport it is doubtful there is enough recorded evidence to exactly pinpoint any one person or culture. Regardless from watching several TLC documentaries.
The ancient Aztecs played a form of basketball with a hoop placed on the side of a wall. They used a crude leather ball. Ancient Egypt was known to play an early form of soccer with a somewhat circular shaped object.
The first official balls were manufactured by Charles Goodyear in 1836. Other than that read this. "Through out history, humans have enjoyed kicking a ball or something like a ball. South American Indians were known to use a light elasticized ball. However; rubber was not to be practically manufactured until a few thousand years later.
According to historical references and legend, early balls ranged from human heads, stitched up cloth, animal and human skulls to pig or cow bladders.
During the Ts'in and Han Dynasties (255 BC-220 AD), the Chinese played 'tsu chu', in which animal-skin balls were dribbled through gaps in a net stretched between two poles. Certain ancient Egyptian rites are said by historians to have similarities with football, and both the ancient Greeks and Romans also played a game that entailed carrying and kicking a ball.
According to pre-medieval legend, an entire village would kick a skull along a path to a nearby village square. The opposing village would in turn attempt to kick the skull to the first village's square. Wow, that probably caused more riots than in modern soccer games.
A Medieval custom was to take pig bladders used from live stock killed in preparation for winter sustenance and inflate them. They would play a game using their feet and hands to keep the "ball" in the air. Sounds like hacky sack to me.
The animal bladder balls were eventually covered with leather for better shape retention."