BOTGA Hardware Collection

• NEC D7220AD
• 2x NEC D4364C-15L
• 416-0220-001

• Board
  • 9″w x 6.5″ high
  • 2-layer
  • natural color
  • silkscreen, no solder mask
  • edge connector 2×50 (=100) 0.1″ pitch
    • three on each end, front and back, appear to be ground
    • 6&7 in from each end appear to be +V
  • Marking:
    • back copper 100391 A

• Board
  • 2-layer, plated through hole, solder mask, no silkscreen
  • 7″w x 6.5″ high
  • Edge connector 2×50 (=100) 0.1″ pitch
• 8085
• 4x 2732A EPROMS
• 3x Intel 8155 RAM + I/O
• Marking
  • Back copper:
    • 10263 COIC
    • eberline
    • 18 84

Large 10″ x 13″ 2-layer board, silkscreen, soldermask. Back copper marking 132300E. Front stamp 2072 and MADE IN USA.

• 8080 CPU
• Two 2708 EPROMs
• Western Digital WDC 1602 UART
• 1488 / 1489 Serial Driver chips
• NEC PB8238 Bus Controller
• 18x 4116 16K x 1 RAM
• 2×50 (100 total) edge connector pitch 0.115″ (3mm). Contact ‘A’ is on far right, contact ‘FF’ is on far left (component side, fingers down).

Possibly Motorola ExorBus

This appears to be an 8080 based single board computer with the following markings

PWA: CS23023C

PWB:SS23023 C

Name: Main CPU 8080

Other: Made in USA