The trade-off between speed and cost, moving from Primary Storage (RAM/Cache) to Secondary Storage (SSD/HDD) and Tertiary Storage (Cloud/Archival).

Analyzing the total cost of ownership (TCO) and the security implications of community-developed code versus commercial vendors. Module 4: Networking and the Global Internet The final section of this archive explores how data moves.

The communication media linking hardware together. Module 2: Computer Hardware and Evolution

LectureNotes1.7z Contents: Modules 1-4 (Foundations, Hardware, Software, and Networking) Module 1: The Ecosystem of Information Systems