The largest of S.M. Video's external ADAM power supplies, at 285 watts.
What that tells you
- A bare ADAM needs a small fraction of this. A supply this size is for a machine carrying hard disks, several expansion cards, multiple drives and everything else the after-market sold.
- It is a good measure of how far people took these machines: by the late 1980s an ADAM could be running a hard disk, 512K of memory, an 80-column card and a serial interface at once.
Why external
- The ADAM's own lives inside its printer, so no printer means no computer. An external supply ends that arrangement.