Question: Name the use for AMD Opteron dual-core 2.6GHz
SQL: SELECT "Use" FROM "1-27765443-2" WHERE "CPU type" = 'AMD Opteron dual-core 2.6GHz';

Question: Name the number of processors for NEC SX-4 vector processor
SQL: SELECT "No. of processors" FROM "1-27765443-2" WHERE "CPU type" = 'NEC SX-4 vector processor';

Question: Name the most peak performance for October 2006 - January 2010
SQL: SELECT "Maximum peak performance ( Teraflops )" FROM "1-27765443-2" WHERE "Period of operation" = 'October 2006 - January 2010';

Question: Name the cpu type for  June 2005 - April 2009
SQL: SELECT "CPU type" FROM "1-27765443-2" WHERE "Period of operation" = 'June 2005 - April 2009';

Question: Name the total number of model for AMD Opteron dual-core 2.6GHz
SQL: SELECT COUNT("Model - Computer name") FROM "1-27765443-2" WHERE "CPU type" = 'AMD Opteron dual-core 2.6GHz';

Question: Name the number of processors for October 2006 - January 2010
SQL: SELECT "No. of processors" FROM "1-27765443-2" WHERE "Period of operation" = 'October 2006 - January 2010';