You can install the PiSCSI software on the Raspberry Pi SD Card which will provide a web / android app access. The majority of computers with a SCSI bus are compatible, but not all computer can boot from the PiSCSI images.
Elk Pi Tube Direct for Acorn Electron Raspberry Pi Co-Processor Cart Board
Bmc64 Commodore 64 ,Hdmi with sd card load Raspberry pi ,+c128,c16,vic20 Bluled
Bmc64 Commodore 64, Hdmi C64 with sd card loading from Raspberry pi , baremetal
ACORN BBC MASTER 128 - INTERNAL RASPBERRY PI COPROCESSOR KIT WITH HDMI OUTPUT
