RK02/03 disk drive - Revision history

Jnc: +New cat

2023-08-14T22:29:49Z

+New cat

Jnc: Jnc moved page RK0x disk drive to RK02/03 disk drive without leaving a redirect: Better naming system

2020-10-29T15:11:22Z

Jnc moved page RK0x disk drive to RK02/03 disk drive without leaving a redirect: Better naming system

Jnc: Jnc moved page RK02 disk drive to RK0x disk drive: naming sys

2020-10-28T19:20:28Z

Jnc moved page RK02 disk drive to RK0x disk drive: naming sys

Jnc: fix infobox

2017-10-02T21:06:40Z

fix infobox

Jnc: Jnc moved page RK02 to RK02 disk drive: canonical naming

2017-10-02T20:38:21Z

Jnc moved page RK02 to RK02 disk drive: canonical naming

Jnc: Note replacement by RK05

2017-10-02T20:13:54Z

Note replacement by RK05

Jnc: Move addn'l data to infobox

2017-10-02T20:07:24Z

Move addn'l data to infobox

Jnc: +links

2017-09-30T14:42:07Z

+links

Jnc: /* Other specifications */ Add picture from RK03 page

2016-03-10T17:35:15Z

‎Other specifications: Add picture from RK03 page

Jnc: Pretty good start!

2016-03-10T17:32:36Z

Pretty good start!

New page

{{Infobox Disk drive
| name = RK02/RK03
| manufacturer = [[Diablo Systems]]
| capacity = 1.22 Mbytes (RK02) 2.45 Mbytes (RK03)
| controller = [[RK8E]] ([[Omnibus]]) [[RK11|RK11-C]] ([[UNIBUS]])
| rpm = 1500
| surfaces = 2
| sectors per track = 16 (RK8E) 12 (RK11)
| words per sector = 128 (RK02-RK11) 256 (RK03-RK11)
| tracks per inch = 100
| density = 1100 bpi(RK02) 2200 bpi (RK03)
| recording method = Double Frequency
| transfer rate = 22.2 μsec/word (RK02-RK11) 11.1 μsec/word (RK03-RK11)
}}

The '''RK02''' and '''RK03''' were moving-head removable-pack magnetic disk drives, sold by [[DEC]], but designed and manufactured by [[Diablo Systems]]. They were inspired by the IBM 2315 drive and pack.

The original RK02 (Diablo Model 30) was soon joined by the RK03 (Diablo Model 31), a double-density model which held twice as much data.

The pack contained a platter 14 inches in diameter, coated with iron oxide. Since the disk was hard sectored, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.

==Other specifications==

* Data tracks - 203 (nominally 200 plus 3 spares)
* Average access time - 70 msec
* Time for 1/2 revolution - 20 msec
* One track seek - 15 msec
* Average seek - 70 msec
* Maximum seek - 135 msec
* Physical size - 19" W x 10.5" H x 26.0" L
* Weight - 43 pounds (basic Diablo drive)

==External links==
* [http://maben.homeip.net/static/s100/diablo/disks/Diablo%2081502A%20Model%2030%20disk%20drive.pdf Series 30 Disk Drives]
* [http://chmhdd.wikifoundry.com/page/Diablo+30+Series Diablo 30 Series]

[[Category: DEC Disk Drives]]

← Older revision		Revision as of 22:29, 14 August 2023
Line 37:		Line 37:
	* [http://chmhdd.wikifoundry.com/page/Diablo+30+Series Diablo 30 Series]		* [http://chmhdd.wikifoundry.com/page/Diablo+30+Series Diablo 30 Series]

−	[[Category: DEC Disk Drives]]	+	[[Category: DEC Early Disk Drives]]
		+	[[Category: DEC Removable-pack Disks]]

@@ Line 2: / Line 2: @@
 | name = RK02/RK03
 | manufacturer = [[Diablo Systems]]
 | capacity = 1.22 Mbytes (RK02)<br>2.45 Mbytes (RK03)
-| controller = [[RK8E]] ([[Omnibus]])<br>[[RK11|RK11-C]] ([[UNIBUS]])
+| transfer rate = 22.2 μsec/word (RK02-RK11)<br>11.1 μsec/word (RK03-RK11)
 | average access time = 70 msec
 | rpm = 1500
 | revolution time = 20 msec
-| one track seek - 15 msec
+| one track seek = 15 msec
-| average seek - 70 msec
+| average seek = 70 msec
-| aaximum seek - 135 msec
+| aaximum seek = 135 msec
 | surfaces = 2
-| tracks per surface = 203 (nominally 200, plus 3 spares)
+| tracks = 203 (nominally 200, plus 3 spares)
-| sectors per track = 16 (RK8E)<br>12 (RK11)
+| sectors = 16 (RK8E)<br>12 (RK11)
 | words per sector = 128 (RK02-RK11)<br>256 (RK03-RK11)
 | tracks per inch = 100
-| density = 1100 bpi(RK02)<br>2200 bpi (RK03)
+| density = 1100 bpi (RK02)<br>2200 bpi (RK03)
 | recording method = Double Frequency
-| transfer rate = 22.2 μsec/word (RK02-RK11)<br>11.1 μsec/word (RK03-RK11)
+| physical size = 19" W x 10.5" H x 26.0" L
-| physical size - 19" W x 10.5" H x 26.0" L
+| weight = 43 pounds (basic Diablo drive)
 }}

← Older revision		Revision as of 20:13, 2 October 2017
Line 29:		Line 29:

	The pack contained a [[platter]] 14 inches in diameter, coated with iron oxide. Since the disk was hard [[sector]]ed, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.		The pack contained a [[platter]] 14 inches in diameter, coated with iron oxide. Since the disk was hard [[sector]]ed, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.
		+
		+	They were replaced by the DEC-manufactured [[RK05]], which used the same packs. <!-- and could read packs written by the RK03. -->

	==External links==		==External links==

@@ Line 4: / Line 4: @@
 | capacity = 1.22 Mbytes (RK02)<br>2.45 Mbytes (RK03)
 | controller = [[RK8E]] ([[Omnibus]])<br>[[RK11|RK11-C]] ([[UNIBUS]])
 | rpm = 1500
 | surfaces = 2
 | sectors per track = 16 (RK8E)<br>12 (RK11)
 | words per sector = 128 (RK02-RK11)<br>256 (RK03-RK11)
@@ Line 12: / Line 18: @@
 | recording method = Double Frequency
 | transfer rate = 22.2 μsec/word (RK02-RK11)<br>11.1 μsec/word (RK03-RK11)
 }}
 The '''RK02''' and '''RK03''' were moving-head removable-pack [[magnetic storage]] [[disk]] drives, sold by [[DEC]], but designed and manufactured by [[Diablo Systems]]. They were inspired by the IBM 2315 drive and pack.
@@ Line 20: / Line 30: @@
 The pack contained a [[platter]] 14 inches in diameter, coated with iron oxide. Since the disk was hard [[sector]]ed, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.
-==Other specifications==
+==External links==
 * [http://maben.homeip.net/static/s100/diablo/disks/Diablo%2081502A%20Model%2030%20disk%20drive.pdf Series 30 Disk Drives]
 * [http://chmhdd.wikifoundry.com/page/Diablo+30+Series Diablo 30 Series]
 [[Category: DEC Disk Drives]]

← Older revision		Revision as of 17:35, 10 March 2016
Line 21:		Line 21:

	==Other specifications==		==Other specifications==
		+
		+	[[Image:rk03.jpg\|200px\|thumb\|right\|RK03 drives]]

	* Data tracks - 203 (nominally 200 plus 3 spares)		* Data tracks - 203 (nominally 200 plus 3 spares)

← Older revision	Revision as of 15:11, 29 October 2020
(No difference)

← Older revision	Revision as of 19:20, 28 October 2020
(No difference)

← Older revision	Revision as of 20:38, 2 October 2017
(No difference)

@@ Line 14: / Line 14: @@
 }}
-The '''RK02''' and '''RK03''' were moving-head removable-pack magnetic disk drives, sold by [[DEC]], but designed and manufactured by [[Diablo Systems]]. They were inspired by the IBM 2315 drive and pack.
+The '''RK02''' and '''RK03''' were moving-head removable-pack [[magnetic storage]] [[disk]] drives, sold by [[DEC]], but designed and manufactured by [[Diablo Systems]]. They were inspired by the IBM 2315 drive and pack.
 The original RK02 (Diablo Model 30) was soon joined by the RK03 (Diablo Model 31), a double-density model which held twice as much data.
-The pack contained a platter 14 inches in diameter, coated with iron oxide. Since the disk was hard sectored, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.
+The pack contained a [[platter]] 14 inches in diameter, coated with iron oxide. Since the disk was hard [[sector]]ed, platters used in the PDP-8 were physically incompatible with those used in the PDP-11, although the drives themselves were completely identical for both.
 ==Other specifications==