Welcome to: CSC225 Introduction to Computer Organization

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Welcome toCSC225Introduction to Computer
Organization

• Paul Hatalsky

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Where this class fits in
101,102,103, etc.
High-Level Language
Compiler
430,431
Assembly Programming
225
Input/Output Interfaces
Instruction Set Architectures
315
Computer Organization
229
Implementation
Logic
129
Transistors
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Introduction to the World of Computing

• Computer magical electronic genius?
• NO! Electronic idiot!
• Does exactly what we tell it to, nothing more.
• Goal of the course
• You will be able to write programs in Cand
  understand much of whats going on underneath.
• Approach
• Build understanding from the bottom up on the
  LC-3!

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Why are we learning this stuff???

• Abstraction Seeing through it
• We usually dont need to worry about details
• Can drive a car without knowing how
• the internal combustion engine works.
• until something goes wrong!
• Wheres the dipstick? Whats a spark plug?
• Important to understand the components andhow
  they work together, especially in embedded design
• Hardware vs. Software
• Its not either/or both are components of a
  computer system.
• Even if you specialize in one,you should
  understand capabilities and limitations of both.
• Because we should know. Right?
• Because it will be useful, right?

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This is the LC-3!
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Will learning the LC-3 teach me anything about a
real computer?

• All computers, given enough time and memory,are
  capable of computing exactly the same things.

Smartphone
Workstation
Supercomputer
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Course Outline

• Bits and Bytes
• How do we represent information using electrical
  signals?
• Digital Logic
• How do we build circuits to process information?
• Processor and Instruction Set
• How do we build a processor out of logic
  elements?
• What operations (instructions) will we implement?
• Assembly Language Programming
• How do we use processor instructions to implement
  algorithms?
• How do we write modular, reusable code?
  (subroutines)
• I/O, Traps, and Interrupts
• How does processor communicate with outside
  world?
• C Programming
• How do we write programs in C?
• How do we implement high-level programming
  constructs?

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Welcome!

• Class Organization
• See Schedule
• Grading
• See Sylabus

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Policies

• Late Policy No late labs. Turn in what you
  have.
• Plagiarism
• Lab write-ups are individual (unless I
  specifically allow partners)
• You may not look at someones working code.
• No one else may type anything into the code.
• Discuss concepts and implementation strategies
  all that you want.

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Policies

• Homework
• Work together if you wish, but TRY the problem
  yourself before you get help.
• Good way to study for tests.
• At least one question per midterm will come
  directly from the homework.
• Exams
• 2 Midterms 1 side of 1 page (8.5 x 11)
  handwritten notes
• 1 Written Final 2 sides of one page of
  handwritten notes

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Questions???
Lets talk about binary and hexadecimal
1001 1101 0010 0101 9D25