different between subroutine vs invoker

English

sub- +? routine

subroutine (plural subroutines)

(computer science) A section of code, called by the main body of a program, that implements a task.

Borrowed from English.

subroutine f (invariable)

invoke +? -er

invoker (plural invokers)

One who calls upon (a person, especially a god) for help, assistance or guidance.
An invoker of God's mercy
One who appeals for validation to a (notably cited) authority.
One who conjures up spirits with incantations.
Someone who induces as an inevitable consequence.
One who solicits, petitions for, appeals to a favorable attitude.
(computing) That which causes a program or subroutine to execute.

Send