(1 Digital Techniques & Components for Digital Systems - Lecture Notes (John Wawrzynek, Berkeley)
(3 Digital System Design - Tests & Worksheets (C. Roussos, Lynchburg College)
(5 Intro to Digital Design - lecture notes (Jim Maxted Univ. of Iowa)
(9 Digital Logic: Tutorials covering Combinational & Sequential Ckts (Ken Bigelow)
(11 Digital Logic Circuits - course notes (C. Stroud, Auburn Univ.)
(12 Digital Systems - Lecture notes in PowerPoint format (Shantanu Dutt, Univ. of Illinois-Chicago)
(14 Microprocessor Systems Engineering - lecture notes (M. Manzke, Trinity College - Dublin)