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DATE 2014-11-01

HANGOUT

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MESSAGE
DATE 2014-11-03
FROM Ruben Safir
SUBJECT Subject: [NYLXS - HANGOUT] Fwd: HW Assignment #3
From owner-hangout-outgoing-at-mrbrklyn.com Mon Nov 3 13:48:18 2014
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From: Ruben Safir
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Subject: [NYLXS - HANGOUT] Fwd: HW Assignment #3
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1) What are the key concepts of von Neumann architecture?

All Data and execution instructions is stored in memory
Memory without regard to data type is accessible by address
The Processor executes instructions from memory serially

2) What are the major components in von Neumann Architecture?
CPU, Memory and I/O

3)Describe a simple instruction execution?

PC Read to IR
PC incremented
Fetch Memory indicated by the instruction in the IR
Decode IR
Execute Instruction in the IR
Read the next Address in the PC
repeat


4) What is an interrupt?
It is an instruction to the CPU to stop the program, store its
current state, jump to an interrupt routine and finishing with a
restoration of the program to its saved state.

5) List the most common classes of interrupt?
Hardware, Program, I/O, Timer


6) Describe the functionality of each of following operations:

a) Instruction fetch (if)
fetch an instruction pointed to by the PC from a memory location


b) Instruction operation decoding (iod)
decode the fetched instruction to its address portion and its opcode
portion

c) Operand address calculation (oac)
Find the address that was referenced from an instruction that was
retreived from main memory for further processing

d) Operand fetch (of)
Fetching the data stored in the above address to be used for the
optcode.

e) Data operation (do)
An instruction to do something with fetched data (add subtract, hold
in the AC etc)


f) Operand store (os)
Store data to an address


Briefly describe : data bus, address bus and control bus

Data Bus transmits data through the bus, usually in word sized parallel
wires or data paths.
Address bus - It announces to devices on the bus who is to get the
incoming data on the data bus
Control Bus - regulates error and flow control on the data bus.




Due Date: October, 20 2014



  1. 2014-11-01 Elfen Magix <elfen_magix-at-yahoo.com> Subject: [NYLXS - HANGOUT] Linux & Raspberry PI Teaching Projects?
  2. 2014-11-01 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Linux & Raspberry PI Teaching Projects?
  3. 2014-11-01 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Linux & Raspberry PI Teaching Projects?
  4. 2014-11-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Tookster parrot is gone
  5. 2014-11-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] PNG Lib problems
  6. 2014-11-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Architecture Homework - Review Questions]
  7. 2014-11-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] 2to4 decoder
  8. 2014-11-03 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Digital Electronics tutorial
  9. 2014-11-03 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Digital Electronics tutorial
  10. 2014-11-03 Ruben Safir <mrbrklyn-at-panix.com> Fwd: Re: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Architecture
  11. 2014-11-03 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: HW Assignment #3
  12. 2014-11-05 Elfen Magix <elfen_magix-at-yahoo.com> Re: [NYLXS - HANGOUT] Linux & Raspberry PI Teaching Projects?
  13. 2014-11-05 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Linux & Raspberry PI Teaching Projects?
  14. 2014-11-06 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] [noreply+feedproxy-at-google.com: nixCraft Linux / UNIX Newsletter]
  15. 2014-11-06 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: Archetchure class - memory cache math et al
  16. 2014-11-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] httpd won't go away
  17. 2014-11-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: Re: [opensuse] PNG Lib problems
  18. 2014-11-08 Ruben Safir <mrbrklyn-at-panix.com> Fwd: [NYLXS - HANGOUT] httpd won't go away
  19. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: Re: [opensuse] httpd won't go away
  20. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Re: [opensuse] httpd won't go away
  21. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Postgres Lecture
  22. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Lectures at LIU with IEEE and The Computer Science Club
  23. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: LIU Brooklyn Computer Science Program and
  24. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Talk at LIU Brooklyn]
  25. 2014-11-09 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Talk at LIU Brooklyn]
  26. 2014-11-10 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: [info-at-meetup.com: Invitation: NYLUG Open hacker
  27. 2014-11-10 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: [info-at-meetup.com: Thursday: Join us at
  28. 2014-11-10 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] [Perlweekly] #172 - And the Silver Camel Goes To...
  29. 2014-11-11 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: FYI: The Institute Online: 3-D Printing Opens Products to Counterfeiting
  30. 2014-11-11 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Guido]
  31. 2014-11-11 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] [christopher.league-at-liu.edu: LIU CS Club: iPhone Development
  32. 2014-11-12 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] DB Architeture Lecture tomorrow - C++ db design
  33. 2014-11-12 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] firefox crashing
  34. 2014-11-12 eminker-at-gmail.com Re: [NYLXS - HANGOUT] firefox crashing
  35. 2014-11-12 eminker-at-gmail.com Re: [NYLXS - HANGOUT] firefox crashing
  36. 2014-11-13 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] firefox crashing
  37. 2014-11-13 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] firefox crashing
  38. 2014-11-14 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] how is this research...UEFI
  39. 2014-11-16 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Postgres Lecture tomorrow
  40. 2014-11-16 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] LIU CS Club: iPhone Development Workshop THIS THURSDAY
  41. 2014-11-17 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] [announce-at-lists.isoc-ny.org: [isoc-ny] Internet Society Statement on
  42. 2014-11-17 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] UEFI report
  43. 2014-11-18 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] UEFI and Secure Boot
  44. 2014-11-19 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] oh Joy!
  45. 2014-11-21 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] New Private Browsing?
  46. 2014-11-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Perl + DBD-Oracle, problems with encoding
  47. 2014-11-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: [mr.criptos-at-gmail.com: Re: MySQL dying?]]
  48. 2014-11-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [ruben-at-mrbrklyn.com: Re: Perl + DBD-Oracle, problems with encoding
  49. 2014-11-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [mrbrklyn-at-panix.com: [LIU Comp Sci] Why Normalization Failed to
  50. 2014-11-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [mrbrklyn-at-panix.com: [LIU Comp Sci] Why Data Models Shouldn't Drive
  51. 2014-11-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] [mrbrklyn-at-panix.com: [LIU Comp Sci] Problems with Normalization]
  52. 2014-11-27 einker <eminker-at-gmail.com> Subject: [NYLXS - HANGOUT] Happy Thanksgiving All!
  53. 2014-11-27 einker <eminker-at-gmail.com> Subject: [NYLXS - HANGOUT] Happy Thanksgiving All!
  54. 2014-11-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  55. 2014-11-27 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  56. 2014-11-27 eminker-at-gmail.com Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  57. 2014-11-27 eminker-at-gmail.com Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  58. 2014-11-28 Ruben Safir <mrbrklyn-at-panix.com> Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  59. 2014-11-28 einker <eminker-at-gmail.com> Re: [NYLXS - HANGOUT] Happy Thanksgiving All!
  60. 2014-11-29 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Fwd: [LIU Comp Sci] Memory Cache theory Architecture Class
  61. 2014-11-29 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] Introduction and Basics - Carnegie Mellon
  62. 2014-11-30 mrbrklyn-at-panix.com Subject: [NYLXS - HANGOUT] Invitation: What I learned as a programmer from founding a startup
  63. 2014-11-30 Ruben Safir <mrbrklyn-at-panix.com> Subject: [NYLXS - HANGOUT] purging systemd

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