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A third-party serial interface card for the Apple II that required cutting and soldering to reconfigure. The user would cut the wire traces between th
A third-party serial interface card for the Apple II that required cutting and soldering to reconfigure. The user would cut the wire traces between the thinly connected ⧓ triangles at X1 and X3 and solder across the unconnected ◀▶ pads at X2 and X4 located at the center of the card. Once done, reverting the modification was more difficult.
A NuBus expansion card without jumpers or DIP switches
A NuBus expansion card without jumpers or DIP switches
An MCA expansion card without jumpers or DIP switches
An MCA expansion card without jumpers or DIP switches
An example of an ISA interface card with extremely limited interrupt selection options, a common problem on PC ISA interfaces. Kouwell KW-524J dual se
An example of an ISA interface card with extremely limited interrupt selection options, a common problem on PC ISA interfaces. Kouwell KW-524J dual serial, dual parallel port, 8-bit ISA, manufactured in 1992: * Serial 1: IRQ 3/4/9 * Serial 2: IRQ 3/4/9 * Parallel 1: IRQ 5/7 * Parallel 2: IRQ 5/7 (There is no technical reason why 3,4,5,7,9 cannot all be selectable choices for each port.)
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Four PCI Express bus card slots (from top to second from bottom: ×4, ×16, ×1 and ×16), compared to a 32-bit conventional PCI bus card slot (very botto
Four PCI Express bus card slots (from top to second from bottom: ×4, ×16, ×1 and ×16), compared to a 32-bit conventional PCI bus card slot (very bottom)