Q&A Assignment #3 Review Questions

Name : Vina Melinda
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Untuk kali ini saya akan menjawab Assignment #3 Review Questions dari Chapter 2 dari Sebesta.

Q&A session:

6. Q: What hardware capability that first appeared in the IBM 704 computer strongly affected the evolution of programming languages? Explain why.
A: Indexing and floating-point instructions in hardware, because one of the primary reasons why the slowness of interpretive system was tolerated from the late 1940s to the mid-1950s was the lack of floating-point hardware in the available computers. All floating-point operations had to be simulated in software, a very time-consuming process. Because so much processors time was spent in software floating-point processing, the overhead of interpretation and the simulation of indexing were relatively insignificant. As long as floating-point had to be done by software, interpretation was an acceptable expense.

7. Q: In what year was the Fortran design project begun?
A: May 1954

8. Q: What was the primary application area of computers at the time Fortran was designed?
A: Mathematic application area.

9. Q: What was the source of all of the control flow statements of Fortran I?
A: 704 instructions

10. Q: What was the most significant feature added to Fortran I to get Fortran II?
A: The independent compilation of subroutines.