Page 158 - Understanding Automotive Electronics

2735 | CH 4 Page 145 Tuesday, March 10, 1998 11:06 AM

MICROCOMPUTER INSTRUMENTATION AND CONTROL 4

10. What type of memory is used to 15. Which register keeps track of pro-
temporarily store data and vari- gram steps?
ables? a. program counter
a. RAM b. stack pointer
b. ROM c. condition code register
c. MAP d. accumulator
d. RPM
16. A programmer uses what type of
11. What distinguishes a computer statements in an assembly lan-
from a fancy calculator? guage program?
a. add, subtract, multiply, and a. op codes
divide b. mnemonics
b. stored program c. machine code
c. the calculators can read paper 17. Most microcomputers use how
tape many bits to address memory?
d. digital circuits
a. 16
12. What part of the computer per- b. 32
forms the arithmetic and logic c. 4
functions? d. 6
a. peripherals 18. Most automotive microcomputers
b. memory use how many bits in arithmetic?
c. CPU a. 1
d. address bus
b. 6
13. Which computer register is the c. 4
main work register? d. 8
a. program counter 19. Which of the following is a short
b. stack pointer program that ends with an RTS
c. condition code register
instruction?
d. accumulator
a. main program
14. A short initialization program is b. interrupt
called what kind of program? c. boot
a. subroutine d. subroutine
b. boot program
c. main program
d. branch

UNDERSTANDING AUTOMOTIVE ELECTRONICS 145