rk11

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page	RK11 Disk Controller	/devices/pdp11/rk11/

RK11 Disk Controller

The RK11 Disk Controller controls up to eight RK05 disk drives, which in turn read/write RK03 disk cartridges.

RK03 disks are single-platter cartridges with 203 tracks per side, 12 sectors per track, and a sector size of 256 words (512 bytes), for a total capacity of 2.38Mb (2,494,464 bytes).

Machines containing the RK11 Component include:

• PDP-11/70 with Front Panel (with Debugger)
• PDP-11/70 with VT100 Terminal (with Debugger)

PCjs has archived a selection of RK03 Disk Images from Paul Nankervis for use by those machines, which are listed in the following RK11 Device XML file:

• Default

which is typically referenced by a Machine XML file as:

<device ref="/devices/pdp11/rk11/default.xml"/>

Device XML files not only configure a device, but also list all the resource the device will use, and define UI elements used to control the device, such as choosing which disks should be "auto-mounted" by the RK11 device. For example:

<?xml version="1.0" encoding="UTF-8"?>
<device id="rk11" type="rk11" autoMount='{RK0:{path:"/disks-pdp11/dec/rk03/RK03-XXDP.json"}}' pos="left" width="35%" padLeft="8px" padBottom="8px">
    <name>Disk Drive Controls</name>
    <control type="container">
        <control type="list" binding="listDrives"/>
        <control type="list" binding="listDisks">
            <disk id="disk01" name="XXDP+ Diagnostics" path="/disks-pdp11/dec/rk03/RK03-XXDP.json"/>
        </control>
        <control type="button" binding="loadDisk">Load</control>
        <control type="button" binding="bootDisk">Boot</control>
        <control type="description" binding="descDisk" padRight="8px"/>
        <control type="file" binding="mountDisk"/>
    </control>
</device>