Welcome to Computer Systems, by J. Stanley Warford, where you can learn about the textbook and download resources.


iTunes U Courses

The courses, CoSc 330, Computer Systems, and CoSc 425, Computer Organization, are available on iTunes U and can be viewed with Apple’s free iTunes U app for iOS mobile devices. CoSc 330 consists of video-recorded lectures with lecture slides and homework assignments, covers Chapters 1–7 of the textbook and includes several demos of the Pep/8 Assembler and Simulator. CoSc 425 covers Chapters 10–12.

CoSc 330/4th ed/iTunes U CoSc 330/5th ed/iTunes U CoSc 425/iTunes U


Course Lecture Videos

The video-recorded lectures from the iTunes U courses above are also available here for viewing in your browser.

CoSc 330/4th ed/Lectures CoSc 330/5th ed/Lectures CoSc 425/Lectures


Pepperdine Courses

Two Pepperdine courses use the Computer Systems text. CoSc 330, Computer Systems, covers chapter 1–7, and CoSc 425, Computer Organization, covers chapters 10–12. The current Pepperdine course pages provide syllabi, assignment sets, lecture slides, and other resources.

CoSc 330/Pepperdine CoSc 425/Pepperdine



A paper on the Pep/8 symbolic memory trace feature from the 2010 ACM SIGCSE conference.

Download Paper

A paper on the Pep/8 CPU simulator from the 2007 ACM SIGCSE conference.

Download Paper


Programs From Text

Programs from the text are available via copy/paste from both the fourth-edition Pep/8 and the fifth-edition Pep/9 apps. For your convenience, here are all the programs packaged in a zip file.

Download Fourth Ed Programs Download Fifth Ed Programs


Digital Logic Labs

Here is a set of digital logic labs that can be used with either the fourth or fifth edition of the text. They are based on the 7400 series TTL chips and include the data sheets of each part.

Download Digital Logic Labs


Lecture Slides

Here are complete sets of lecture slides in PDF format. The sets in Keynote and PowerPoint format are available from the publisher’s Web site. The slides include every figure from from the text and additional slides with bullet point summaries.

Fourth Ed PDF slides Fifth Ed PDF slides Visit Fifth Ed Site


Documentation for Exam Handouts

Here is reference documentation that can be supplied to students during exams. It includes specifications for both Pep/8 or Pep/9 and MIPS.

Fourth Ed Pep/8 Documentation Fifth Ed Pep/9 Documentation