Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_27765443_2 ( cpu_type VARCHAR, period_of_operation VARCHAR )

### Question ###
Name the cpu type for june 2005 - april 2009

### Accurate SQL ###

SELECT cpu_type FROM table_27765443_2 WHERE period_of_operation = "June 2005 - April 2009"