Module Identifier COM3220  
Academic Year 2004/2005  
Co-ordinator Mr Rhys Parry  
Semester Available all semesters  
Other staff Mr David E Price, Mr Rhys Parry  
Pre-Requisite CO21120. Available only to students taking the Diploma/MSc in Computer Science scheme in Singapore.  
Course delivery Workload Breakdown   55 hours of contact time; lectures, practicals, workshops.  
  Workload Breakdown   145 hours of private study, practical work and assessment.  
Assessment TypeAssessment Length/DetailsProportion
Semester Exam2 Hours Written Exam  50%
Semester Assessment One programming assignment (60 hours)  50%
Supplementary Assessment Supplementary examination will take the same form, under the terms of the Department's policy   

Learning outcomes

On successful completion of this module students should be able to:
analyse a block diagram of a computer and explain how it works at the level of logic gates.

analyse and develop low level programs and describe how they are executed by a CPU.

describe how a computer performs input and output operations.

explain how abstract concepts in high-level languages, such as `function call' or `local variable', are implemented in machine code.

judge the applicability of high and low level language programming.

demonstrate a good understanding of the nature of the computer language "C" including the more challenging aspects of the language.

apply the facilities of the language "C" to technically advanced problems.

describe the differences between object oriented languages (such as Java) and non-OO languages (such as C) and make appropriate choices between such languages to solve a range of realistic problems.


1. Introduction

Overall introduction to the module.

2. What is a computer?

Block diagram overview; CPU, memory, I/O, Bus. Memory, Digital Logic; pigeon-hole model, address and contents, bits bytes and words.

3. Buses

Address, data and control buses. Basic data transfer.

4. Inside the CPU

Simple examples of instructions. The fetch-execute cycle and the program counter. Registers. ALU. Control unit. Implementing a machine code in hardware. Digital logic.

5. An example CPU example: Some machine codes and mnemonics

Addressing modes. Assembly code.

6. Executing high-level software

Machine-code equivalents of high-level constructs. Function calls. Stack frames and local variables.

7. I/O

Reading and writing data. Interrupts. Transferring large amounts of data; DMA, block I/O.

8. Exercises

Use a CPU simulator to watch instruction execution. Assembly language comprehension (probably, but not necessarily, by writing a program).

9. Linux at the command line

An introduction to the alternative Linux shells. Shell built-in commands and commonly used external commands and editors.

10. Shell Script programming The programming language provided by a selected Linux shell in common usage.

11. Tools of the Unix Environment

Purpose and usage of Linux environment tools such as sed, sort, uniq, awk, grep and so on.

12. Basic Concepts of "C"

History of the C language, philosophical differences between C language design and Java. Basic form of a C program compared with that of a Java program. Using the compiler.

13. Control Structures Sequence, branching and iteration in C compared with that of Java.

14. Basic Data Structures

Review of basic data types and operators in C.

15. Functions

Discussion of ways in which functions are implemented, and used in C, including parameter passing mechanisms. Input/Output.

16. Composite Data Structures

A first discussion of Arrays in C.

17. Software Support Tools

Make, Lint, Debuggers. Libraries and library utilities.

18. C Programming Style and Portability

Language standards. Portability. Programming standards.

19. Arrays, Pointers and Functions

A discussion of pointer data types, how they relate to arrays, and how they contrast with references to Java objects.

20. Dynamic Data Structures

Implementation of various record structures and dynamic structures. Pointers. Malloc. Examples in C. Parallels will be drawn with how the internals of Java do this for you.

21. Pitfalls

Major problem areas. Design rationale of C and of Java in problem areas.

22. Further Features C preprocessor, header files, conditional inclusion, macro substitution, bitwise operators, casts, enumeration, scope, static and external declarations, separate compilation.

Reading Lists

** Recommended Text
Peter PRinz and Ulla Kirch-Prinz (2002) C Pocket Reference O'Reilly UK 0596004362
Yale N Patt and Sanjay J Patel (2004) Introduction to Computing Systems 2. McGraw Hill 0072467509
Daniel J Barrett (2004) Linux Pocket Guide O'Reilly UK 0596006284


This module is at CQFW Level 7