00445nam a22001817a 450000500170000002000190001702000150003604000080005108200220005910000190008124500200010025000120012026000530013230000220018552100190020765000250022676000120025120190319100939.0  a 9788186340745  a8186340742  cAEF  21st ed.a004bBAS10aBasndra, S. K.1 aComputer today.  a1sr ed.  aNew Delhi.bGalgotia Publication pvt.Ltd.c2008.  a1441 p. :c27 cm.  aInclude index.  aInformation systems.  b1st ed.