---
layout: page
title: DEC Disk Images
permalink: /disks/dec/
---

DEC Disk Images
---------------

The DEC disk images we have archived are organized by type: 

* [RK03](rk03/)
	* [RT-11 v4.0](/disks/dec/rk03/rt11v4/) [[Source](http://skn.noip.me/pdp11/): RK1.DSK]
	* [Unix v5](/disks/dec/rk03/unixv5/) [[Source](http://skn.noip.me/pdp11/): RK0.DSK]
	* [XXDP+ Diagnostics](/disks/dec/rk03/xxdp/) [[Source](http://skn.noip.me/pdp11/): RK2.DSK]
* [RL01K](rl01k/)
	* [RSTS/E v7.0](/disks/dec/rl01k/rstsv70/) [[Source](http://skn.noip.me/pdp11/): RL2.DSK]
* [RL02K](rl02k/)
	* [XXDP+ Diagnostics](/disks/dec/rl02k/xxdp/) [[Source](http://skn.noip.me/pdp11/): RL3.DSK]
* [RX01](rx01/)
	* [RT-11 v3.0](/disks/dec/rx01/rt11v3/) [[Source](http://www.headcrashers.org/comp/rx01/)]

RK03 (or more precisely, RK03-KA) disks are single-platter cartridges with a capacity of 2.38Mb.
They are used in RK05 disk drives in conjunction with an [RK11 Disk Controller](/devices/pdp11/rk11/).

RL01K and RL02K disks are single-platter cartridges with capacities of 5Mb and 10Mb, respectively,
They are used in RL01 and RL02 disk drives with an [RL11 Disk Controller](/devices/pdp11/rl11/).

RX01 diskettes are single-sided, with 77 tracks per side, 26 sectors per track, and a sector size of 128 bytes,
for a total capacity of 250Kb (256,256 bytes).  They are used in RX01 disk drives in conjunction with an
[RX11 Disk Controller](/devices/pdp11/rx11/).