Emmett Till Biography. The brutal 1955 murder of teenager Emmett Till, and the news coverage it drew, helped ignite the civil rights movement in America in the 1950s. Exactly what Emmett Till, a 14-year-old African American boy, said or did to offend Carolyn Bryant, a 21-year-old white woman working in a Mississippi grocery store, is unclear; he may have whistled at her.
There's no major difference. The benefit of the default instance is that you connect just by specifying the server name (eg, MYSERVER), whereas a named instance will require an instance name as well (eg, MYSERVER\SQL2005). If you're only going to install one version of SQL Server on this machine, go with a default.
Choose to detect installed instances. This option locates all the instances installed on your SQL Server network to ensure there are no duplications. Choose an instance ID. By default, the name you used for the instance is used for the ID. You can change this setting by giving the new instance a different ID. The ID is used in the registry and for file identification. Choose a root folder. By default, SQL Server installs the files in the root of the SQL Server executable file folder.