Goodwill And Purchased Intangible Assets (Tables)

6 Months Ended

Oct. 28, 2011

Goodwill And Purchased Intangible Assets [Abstract]

Schedule Of Goodwill Activity

Goodwill:
April 29, 2011	$	760.3
Additions		143.7
October 28, 2011	$	904.0

Identified Intangible Assets

	October 28, 2011							April 29, 2011
	Gross Assets		Accumulated Amortization			Net Assets		Gross Assets		Accumulated Amortization			Net Assets
Identified Intangible Assets:
Developed technology	$	282.1	$	(51.1	)	$	231.0	$	66.1	$	(23.2	)	$	42.9
Customer contracts/relationships		59.5		(20.0	)		39.5		12.0		(4.6	)		7.4
Trademarks and trade names		14.7		(7.7	)		7.0		7.7		(5.5	)		2.2
Covenants not to compete		2.2		(0.6	)		1.6		0.6		(0.1	)		0.5
Total identified intangible assets	$	358.5	$	(79.4	)	$	279.1	$	86.4	$	(33.4	)	$	53.0

Amortization Expense For Identified Intangible Assets

	Three Months Ended				Six Months Ended
	October 28, 2011		October 29, 2010		October 28, 2011		October 29, 2010		Statements of Operations Classifications
Developed technology	$	14.0	$	3.3	$	27.9	$	7.7	Cost of product revenues
Customer contracts/relationships		6.4		0.8		15.4		1.6	Sales and marketing
Trademarks and trade names		1.1		0.3		2.3		0.6	Sales and marketing
Covenants not to compete		0.2		0.0		0.4		0.0	Sales and marketing / Research and development
	$	21.7	$	4.4	$	46.0	$	9.9

Future Amortization Expense Related To Identifiable Intangible Assets

Fiscal Year	Amount
Remainder of 2012	$	43.0
2013		84.2
2014		52.0
2015		50.7
2016		46.9
2017		2.3
Total	$	279.1