Its when you have to surround the letter X
Depends on the size of the flags.
Auzentech AZT-STUDIO X-Studioand Creative labs do.
Surround is present. Surrounded is past and surround is also future.
Speaker systems are described using a 2-part notation in the form of X.Y, with the X referring to the number of full-range channels (regular speakers) and the Y referring to limited-range speakers like a subwoofer. For example, a 5.1 surround system has 5 full-range speakers (front, left, right, left surround, right surround) and a subwoofer. Likewise, 2.1 means that the system has 2 regular speakers (presumably a left and right channel) and 1 subwoofer, and 4.1 means 4 regular speakers (left, right, left surround, right surround) and 1 subwoofer. Another means of notation uses the format X/Y.Z, where X is the number of full-range channels in front of the listener, Y is the number of full-range channels beside or behind the listener, and Z is the number of limited-range channels. For example, a typical 5.1 surround system could be described as 3/2.1, because there are 3 channels in front of the listener (left, center, right), 2 behind (left surround, right surround), and 1 limited-range subwoofer. To expand it even farther, there is another notation, expanded to include matrix decoders, with the format X/Y:Z.A, where X is the number of front channels, Y is the number of rear channels, Z is the number of channels in the rear in total (including channels reproduced by the rear using sound effects), and Z is the number of limited-range speakers. So, the notation 3/2:3.1 (referring to Dolby Digital EX) means that there are 3 channels in front (left, front center, right), 2 speakers in back (left surround, right surround) which produce 3 channels (left surround, rear center, right surround), and 1 limited-range subwoofer. For more information on this type of notation, you can visit Wikipedia at http://en.wikipedia.org/wiki/Surround_sound#Notation
No, "surround" is not a prefix. Rather, "surround" is a verb that means to encircle or enclose something.
surrounded is the past tense of surround
The past tense is "surrounded" The future tense is "will surround"
No, it is not. The word "surround" is a verb.
The future tense is "will surround".
If it was a rectangular yard it would have two sides of 25ft and two sides of 75ft, so 2 x 25ft = 50ft and 2 x 75ft = 150ft. If you now add 50ft to 150 ft you can see that you would need 200ft of fence to completely surround the yard.
The Logitech X 540 is not a mouse. The product of this name is a set of Logitech surround sound speakers and a sub woofer. The price in the United States is $229.99.
Virtual surround uses 2 speakers to simulate the effect of a wider stereo image and surround speakers using digital processing. It is not as effective as real surround sound, which uses real rear and surround speakers.