Language Processors
Multiprogramming was made possible by

operating systems
both (a) and (b)
input/output units that operate independently of the CPU
neither (a) nor (b)

ANSWER DOWNLOAD EXAMIANS APP

Language Processors
In analyzing the compilation of PL/I program, the term "Lexical analysis" is associated with

recognition of basic syntactic constructs through reductions
creation of more optional matrix
use of macro processor to produce more optimal assembly code
recognition of basic elements and creation of uniform symbols

ANSWER DOWNLOAD EXAMIANS APP