4909: Difference between revisions
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|image=Tek_4909_01.jpg | |image=Tek_4909_01.jpg | ||
|caption=4909 Mass Storage | |caption=4909 Mass Storage | ||
|introduced= | |introduced=1981 | ||
|discontinued=(?) | |discontinued=(?) | ||
|designers= | |designers= | ||
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[[4051]] computers require the [[4051R10]] ROM pack and [[4052]]/[[4054]] computers require the [[4052R10]] ROM pack to connect to the 4909. | [[4051]] computers require the [[4051R10]] ROM pack and [[4052]]/[[4054]] computers require the [[4052R10]] ROM pack to connect to the 4909. | ||
==Specifications== | |||
4909 Features: | 4909 Features: | ||
* Shared | * Shared access for up to 10 users | ||
* Public and | * Public and private file workspaces | ||
* 32 or 96 MB Hard Drive | * 32 or 96 MB Hard Drive capacity | ||
* Expandable up to 8 | * Expandable up to 8 hard drives (768 MB) | ||
* Indexed and | * Indexed and dynamically Allocated Files | ||
* Variable | * Variable length records | ||
* Concatenated | * Concatenated volumes | ||
* English | * English commands over GPIB for interfacing third-party clients | ||
* Real | * Real-time clock with battery backup | ||
* File | * File names up to 100 characters long, multi-level library names | ||
* | |||
The 4909 base unit supports plug-in interfaces − disk controllers for one or two disks, and individual GPIB interfaces for each client computer. | |||
The disk drives are 14" CDC 9448 "Phoenix" [[wikipedia:Storage Module Device|SMD]] units with a 16MB removable and 16MB or 80MB fixed part. | |||
==Links== | |||
* See also [[4907|4907 File Manager]] | |||
{{Documents|Link=4909}} | |||
{{PatentLinks|4909}} | |||
==Pictures== | ==Pictures== | ||
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[[Category: | [[Category:Data storage]] | ||
Latest revision as of 13:24, 12 July 2024
The Tektronix 4909 Multi-User File System is a sharable mass storage system with a GPIB interface, intended for the 4050-series computers.
The 4909 is based on a controller that provides advanced file management between up to ten desktop computers and large capacity hard-disk drives. Flexible file management and a multiple-level library structure provides multiple file access levels, indexed (keyed) file support, directly addressable bytes within records, expandable records and files, and enhanced data storage and retrieval. Options include additional disk drives for expanded capacity.
4051 computers require the 4051R10 ROM pack and 4052/4054 computers require the 4052R10 ROM pack to connect to the 4909.
Specifications
4909 Features:
- Shared access for up to 10 users
- Public and private file workspaces
- 32 or 96 MB Hard Drive capacity
- Expandable up to 8 hard drives (768 MB)
- Indexed and dynamically Allocated Files
- Variable length records
- Concatenated volumes
- English commands over GPIB for interfacing third-party clients
- Real-time clock with battery backup
- File names up to 100 characters long, multi-level library names
The 4909 base unit supports plug-in interfaces − disk controllers for one or two disks, and individual GPIB interfaces for each client computer. The disk drives are 14" CDC 9448 "Phoenix" SMD units with a 16MB removable and 16MB or 80MB fixed part.
Links
- See also 4907 File Manager
Documents Referencing 4909
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tektronix 4909 Hard Disk System Tekniques V5 N4.pdf | Article | 4050 Users Share Data Storage and Retrieval in New Tektronix Hard Disk | Chuck Smith • Dave Watts | 1981 | 4909 • 4050 series • 4051 • 4052 |