Meaning – A background processis one that can be run by the computer while the workstation is being used to complete others tasks. In this, operator intervention is not required to initiate this process.
Also, with reference to the AIX operating system, the background process is a mode of program execution in which the shell does not wait for program completion before prompting the user for another command.
Typical tasks that come under the background process include logging, system monitoring, scheduling. In a Windows based system, a background process is a computer program that does not create a user interface, or a windows service.
On a Unix or a Unix-Like system, a background process is one whose process group ID is different from the Terminal Group ID.