RS64 disk drive - Revision history

Jnc: +New cat

2023-08-14T20:12:01Z

+New cat

Jnc: Misspelled

2021-05-11T18:13:29Z

Misspelled

Jnc: Misspelled

2021-05-11T15:18:02Z

Misspelled

Jnc: No PDP-8 controller, oddly

2021-05-04T10:53:58Z

No PDP-8 controller, oddly

Jnc: /* External links */ +1

2021-04-29T19:48:03Z

‎External links: +1

Jnc: clarify

2018-11-20T16:51:13Z

clarify

Jnc: A good start

2018-11-20T15:54:01Z

A good start

New page

{{Infobox Disk drive
| name = RS64
| manufacturer = [[Digital Equipment Corporation]]
| rpm = ~1800 (60Hz), ~1400 (50Hz)
| average access time = 16.9msec (60Hz), 20.3msec (50Hz)
| capacity = 128KB
| surfaces = 1
| tracks = 32
| sectors = 64
| words per sector = 32
| media = 10" diameter nickel-cobalt plated surface with proprietary protective coating
| transfer rate = 125KB/sec (60 Hz), 100KB/sec (50 Hz)
| density = 1700 bpi (maximum)
| recording method = [[NRZI]]
| physical size = 10" (high), 19" (W, D)
| weight = 64 lbs
| power consumption = 6A (starting), 2.2A (operating)
| controller = [[RC11 disk controller|RC11]] ([[UNIBUS]])

|}}

The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on [[PDP-8 family|PDP-8]]'s and early [[PDP-11]]s. It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).

A special device had to be used to write the timing/address tracks. It had the ability to write-protect tracks 0-N ('N' set in switches).

[[Category: DEC Disk Drives]]

← Older revision		Revision as of 20:12, 14 August 2023
Line 36:		Line 36:
	*[http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-FS-HRSMM-A-D%20RS64%20Timing%20Track%20Writer%20Maintenance%20Manual.pdf RS64 Timing Track Writer Maintenance Manual]		*[http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-FS-HRSMM-A-D%20RS64%20Timing%20Track%20Writer%20Maintenance%20Manual.pdf RS64 Timing Track Writer Maintenance Manual]

−	[[Category: DEC Disk Drives]]	+	[[Category: DEC Early Disk Drives]]
		+	[[Category: DEC Fixed-head Disks]]

@@ Line 27: / Line 27: @@
 |}}
-The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on early [[PDP-11]]s. (No [[PDP-8 family|PDP-8]] or other [[List of Programmed Digital Processors|early DEC system]] [[device controller]] has yet been seen for it, although the look of its Service Manual dates it to just before the early -11's.) It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
+The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on early [[PDP-11]]s. (No [[PDP-8 family|PDP-8]] or other [[List of Programmed Data Processors|early DEC system]] [[device controller]] has yet been seen for it, although the look of its Service Manual dates it to just before the early -11's.) It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
 A special device had to be used to write the timing/address tracks. The drive had the ability to write-protect tracks 0-N ('N' set in switches).

@@ Line 27: / Line 27: @@
 |}}
-The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on early [[PDP-11]]s. (No [[PDP-8 family|PDP-8]] or other [[List of Programmable Digital Processors|early DEC system]] [[device controller]] has yet been seen for it, although the look of its Service Manual dates it to just before the early -11's.) It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
+The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on early [[PDP-11]]s. (No [[PDP-8 family|PDP-8]] or other [[List of Programmed Digital Processors|early DEC system]] [[device controller]] has yet been seen for it, although the look of its Service Manual dates it to just before the early -11's.) It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
 A special device had to be used to write the timing/address tracks. The drive had the ability to write-protect tracks 0-N ('N' set in switches).

@@ Line 27: / Line 27: @@
 |}}
-The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on [[PDP-8 family|PDP-8]]'s and early [[PDP-11]]s. It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
+The RS64 is a fixed-platter [[fixed-head disk]] [[drive]] used on early [[PDP-11]]s. (No [[PDP-8 family|PDP-8]] or other [[List of Programmable Digital Processors|early DEC system]] [[device controller]] has yet been seen for it, although the look of its Service Manual dates it to just before the early -11's.) It could store up to 128KB of data in 64 byte blocks. It used 32 fixed read/write [[head]]s for data, and 6 heads to read timing/address [[track]]s (in two duplicated sets of 3, for reliability; switch-over from one set to another was manual).
 A special device had to be used to write the timing/address tracks. The drive had the ability to write-protect tracks 0-N ('N' set in switches).
@@ Line 33: / Line 33: @@
 ==External links==
-* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-FS-HRSMM-A-D%20RS64%20Timing%20Track%20Writer%20Maintenance%20Manual.pdf RS64 Timing Track Writer Maintenance Manual]
+*[http://bitsavers.org/pdf/dec/disc/rs64/ Service Manuals and Engineering Drawings]
 *[http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-FS-HRSMM-A-D%20RS64%20Timing%20Track%20Writer%20Maintenance%20Manual.pdf RS64 Timing Track Writer Maintenance Manual]
 [[Category: DEC Disk Drives]]

← Older revision		Revision as of 19:48, 29 April 2021
Line 30:		Line 30:

	A special device had to be used to write the timing/address tracks. The drive had the ability to write-protect tracks 0-N ('N' set in switches).		A special device had to be used to write the timing/address tracks. The drive had the ability to write-protect tracks 0-N ('N' set in switches).
		+
		+	==External links==
		+
		+	* [http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-FS-HRSMM-A-D%20RS64%20Timing%20Track%20Writer%20Maintenance%20Manual.pdf RS64 Timing Track Writer Maintenance Manual]
		+

	[[Category: DEC Disk Drives]]		[[Category: DEC Disk Drives]]