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Explain the Alphabet and String
A finite set of symbols is known as alphabet. An alphabet is frequently denoted by sigma, yet can be given any name.
B = {0, 1} says B is an alphabet of two symbols, 0 and 1.
C = {a, b, c} says C is an alphabet of three symbols, a, b and c.
Occasionally space and comma are in an alphabet whereas other times they are meta symbols employed for descriptions. A language is determined over an alphabet. For instance binary language is defined over alphabet B.
A finite sequence of symbols from an alphabet is known as string or word.
01110 and 111 are strings from the alphabet B above.
aaabccc and b are strings from the alphabet C above.
A null string is a string along with no symbols, generally denoted by epsilon has zero length.
NEXT FIT ALGORITHM Here scanning starts from the first fit position and then it finds the next position which is large sufficient to hold the process. Thus the name next fit.
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