| Noun | 1. | instruction execution - (computer science) the process of carrying out an instruction by a computer physical process, process - a sustained phenomenon or one marked by gradual changes through a series of states; "events now in process"; "the process of calcification begins later for boys than for girls" computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures batch processing - the serial execution of computer programs data processing - (computer science) a series of operations on data by a computer in order to retrieve or transform or classify information concurrent execution, multiprogramming - the execution of two or more computer programs by a single computer |