CalComp Model 215 Disk Drive - Revision history

Jnc: Re-classify

2024-10-13T00:32:27Z

Re-classify

Jnc: Removable-pack

2024-02-11T16:18:42Z

Removable-pack

Jnc: Actually a Century Data Systems product

2024-02-11T00:54:43Z

Actually a Century Data Systems product

Jnc: Stubby, but a start

2024-02-10T20:57:27Z

Stubby, but a start

New page

{{Infobox Disk drive
| name = CalComp Model 215
| image = CalComp215.jpg
| imgwidth = 150px
| caption = CalComp Model 215 drive
| manufacturer = California Computer Products
| controller = [[RP10 disk controller|RP10]] ([[PDP-10]])
| capacity = 58 Mbytes (per drive)
| transfer rate = 312 Kbytes/sec

| rpm = 2400
| revolution time = 12.5 msec
| one track seek = 10 msec
| average seek = 35 msec
| maximum seek = 55 msec
| surfaces = 20
| tracks = 406 (nominally 400 plus 6 spares; many systems used all 406, as reliability was high)

| tracks per inch = 200
| density = 2200 bpi (maximum)

| physical size = 32" W x 35" L x 61" H
| weight = 850 pounds (Model 215)<br>510 pounds (Model 213)<br>
| power consumption = 20 A per drive (starting); 4.3A A per drive (running)
}}

The '''CalComp Model 215 Disk Drive''' was a popular [[OEM]] multi-[[platter]] large [[disk]] drive. Technically, the 215 held two drives in one cabinet; the '''CalComp Model 213 Disk Drive''' was the name for a unit with only one drive.

{{stub}}

==External links==

* [http://www.bitsavers.org/pdf/centuryData/brochures/Calcomp_215_Brochure_Jun74.pdf CalComp Model 215 Disk Drive]
* [http://www.bitsavers.org/pdf/centuryData/brochures/Calcomp_1015A_Brochure_Dec71.pdf CalComp 1015A Dual Density Disk Storage System] - includes 215 units
* [https://www.computerhistory.org/collections/catalog/102803898 ML PDP-10] - image of CalComp 215's on MIT-ML

[[Category: Disk Drives]]

@@ Line 26: / Line 26: @@
 }}
-The '''CalComp Model 215 Disk Drive''' was a popular [[OEM]] multi-[[platter]] large [[disk]] drive from [[Century Data Systems]] (during the time when they were a subsidiary of [[California Computer Products]]; hence the name).
+The '''CalComp Model 215 Disk Drive''' was a popular [[OEM]] multi-[[platter]] large [[removable-pack disk]] drive from [[Century Data Systems]] (during the time when they were a subsidiary of [[California Computer Products]]; hence the name).
 Technically, the 215 held two drives in one cabinet; the '''CalComp Model 213 Disk Drive''' was the name for a unit with only one drive.

@@ Line 32: / Line 32: @@
 ==See also==
 -->
-{{stub}}
+{{semi-stub}}
 ==External links==

@@ Line 4: / Line 4: @@
 | imgwidth = 150px
 | caption = CalComp Model 215 drive
-| manufacturer = California Computer Products
+| manufacturer = [[Century Data Systems]]
 | controller = [[RP10 disk controller|RP10]] ([[PDP-10]])
 | capacity = 58 Mbytes (per drive)
@@ Line 26: / Line 26: @@
 }}
-The '''CalComp Model 215 Disk Drive''' was a popular [[OEM]] multi-[[platter]] large [[disk]] drive. Technically, the 215 held two drives in one cabinet; the '''CalComp Model 213 Disk Drive''' was the name for a unit with only one drive.
+The '''CalComp Model 215 Disk Drive''' was a popular [[OEM]] multi-[[platter]] large [[disk]] drive from [[Century Data Systems]] (during the time when they were a subsidiary of [[California Computer Products]]; hence the name).
 <!--
 ==See also==