Now That's What I Call Music! | Call of Duty: Black Ops | San Francisco Call | Roll Call | Last Call with Carson Daly | Call of Duty | Call of Cthulhu | Call of Duty: Black Ops II | The Call of Cthulhu | Call Me Madam | call centre | Secret Diary of a Call Girl | Call of Duty: World at War | Call of Duty 4: Modern Warfare | Call of Cthulhu (role-playing game) | Call Me When You're Sober | Call centre | They Call Us Misfits | Murder Call | Call-tracking software | Call Off the Search | Call of Duty 2 | Caedmon's Call | Booty Call | The Call of the Wild (1935 film) | The Call of the Wild | ''The Call of the Wild'' | Now That's What I Call Music! 21 (UK series) | Indian Love Call | Continuous Call Team |
It was developed by Tony Brooker and Derrick Morris as a variant of the ALGOL programming language, removing some Algol features such as "passing parameters by name" (which in Algol 60 means passing the address of a short subroutine to recalculate the parameter each time it was mentioned).