Computer hardware design; Computer software design; Computer system design; Computer virus protection services; Conversion of computer programs and data, other than physical conversion; Monitoring of computer systems to detect breakdowns; Product testing; Recovery of computer data; Research and development of new products for others; Testing of computer software

'breakdown':30 'comput':1,4,7,10,16,26,35,47 'convers':14,23 'data':19,36 'design':3,6,9 'detect':29 'develop':39 'hardwar':2 'monitor':24 'new':41 'other':44 'physic':22 'product':31,42 'program':17 'protect':12 'recoveri':33 'research':37 'servic':13 'softwar':5,48 'system':8,27 'test':32,45 'virus':11

TENGYIN

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