add foundational slides from hauber reference: - KB vs KiB (decimal vs binary units) - HDD structure (platter, tracks, sectors) - SD cards (variants, speed classes) - CD/DVD/Blu-ray basics (optical media overview)
add foundational slides from hauber reference: - KB vs KiB (decimal vs binary units) - HDD structure (platter, tracks, sectors) - SD cards (variants, speed classes) - CD/DVD/Blu-ray basics (optical media overview)