Editing Apple II (section)

== Expansion Ecosystem ==
{| class="wikitable" style="width:80%; text-align:center;"
! Slot !! Typical Cards (1977‑79 era)
|-
| 0 || 16 KB Language Card (Pascal) • CP/M Z‑80 (Microsoft SoftCard later)
|-
| 1 || 80‑column video • Parallel printer
|-
| 2 || Serial interface • Modem 300 / 1200 baud
|-
| 3 || Parallel printer (Grappler) • Videx 80‑column
|-
| 4 || Game I/O • Speech Synthesizer
|-
| 5 || [[Disk II]] controller
|-
| 6 || Secondary Disk II (Slot 6 is boot slot by convention)
|-
| 7 || Memory expansion • Hard‑sector floppy • Ethernet (very late)
|}