21. The system/370 assembler language
A. is a term that refers to the control programs of an operating system
B. is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
C. allows multiple programs to reside in separate areas of core at the same time
D. allows the programmer to write base registers and displacements explicitly in the source program
22. Convert the ASLA assembly language instructions into hexadecimal machine language:
A. 0111EF
B. 9001E6
C. DA000F
D. 40
23. The advantage(s) inherent to using high level languages is/are:
A. Fewer people, less management and shorter transition in learning time
B. Improved debugging capability, and superior documentation
C. A greater degree of machine independence
D. All of the above
24. Convert the ASCII/BEAR/assembly language pseudo-ops into hexadecimal machine language
A. 0111EF
B. 03 16
C. F8
D. 42 65 61 72
25. Assembler is
A. a program that automate the translation of assembly language into machine language
B. a program that accepts a program written in a high level language and produces an object program
C. a program that places programs into memory and prepares them for execution
D. is a program that appears to execute a source program as if it were machine language