Difference between revisions of "VAX-11/780"
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{{InfoboxVAX-Data | {{InfoboxVAX-Data | ||
| name = VAX-11/780 | | name = VAX-11/780 | ||
| − | | Announcement = | + | | Announcement = October 1977 |
| Codename = Star | | Codename = Star | ||
| OS-support-VMS = VMS V1.5 | | OS-support-VMS = VMS V1.5 | ||
| + | | CPU-name-VMS = KA780 | ||
| Num-proc = 1 | | Num-proc = 1 | ||
| CPU-technology = Bipolar Schottky | | CPU-technology = Bipolar Schottky | ||
| Line 30: | Line 28: | ||
}} | }} | ||
| − | The VAX-11/780 was the first member to ship of the VAX-11 family of | + | [[Image:Vax11-780_2.png|thumb|A 'typical' VAX-11/780 marketing image]] |
| − | It was announced on October 25<sup>th</sup>, 1977 at Digital Equipment Corporation's Annual Meeting of Shareholders.[[#ref_4|[4]]] | + | |
| − | + | The '''VAX-11/780''' was the first member to ship of the VAX-11 family of larger computers. The VAX series was conceived as the successor to the successful [[PDP-11]] series of [[minicomputer]]s, and in order to make the VAX seem more PDP-11 friendly, they retained the -11 moniker for the first VAXen, hence the -11/780 designation. | |
| − | One of the main design goals was to increase the address space available, in fact the VAX acronym originally stood | + | |
| − | for Virtual Address eXtension).[[#ref_3|[3]]] | + | It was announced on October 25<sup>th</sup>, 1977 at [[Digital Equipment Corporation]]'s Annual Meeting of Shareholders.[[#ref_4|[4]]] |
| + | |||
| + | One of the main design goals was to increase the address space available, in fact the VAX acronym originally stood for Virtual Address eXtension).[[#ref_3|[3]]] | ||
The first VAX-11/780 systems shipped with one quarter of a megabyte of memory, built from 4Kb chips.[[#ref_3|[3]]] | The first VAX-11/780 systems shipped with one quarter of a megabyte of memory, built from 4Kb chips.[[#ref_3|[3]]] | ||
| − | The VAX-11/780 was given the codename "Star" and its operating system, VAX/VMS, was codenamed "Starlet".[[#ref_4|[4]]] | + | The 11/780 didn't have normal firmware, instead it loaded its [[microcode]] from floppy. There was also the [[VAX-11/785]], which was an upgraded version. |
| − | VAX/VMS Version V1.0 shipped in 1978, along with the first revenue-ship 11/780s. | + | |
| + | The VAX-11/780 was given the codename "Star" and its operating system, VAX/VMS, was codenamed "Starlet".[[#ref_4|[4]]] VAX/VMS Version V1.0 shipped in 1978, along with the first revenue-ship 11/780s. | ||
| + | |||
| + | ==Operating Systems== | ||
| + | |||
| + | [[Image:DEC-VAX-11-780.jpg|thumb|An actual VAX-11/780 system]] | ||
| + | |||
| + | The 11/780 was to ship with VMS 1.0. | ||
| + | |||
| + | * [[VMS]] 1.0 - ?.0 | ||
| + | * [[32v]] | ||
| + | * [[Ultrix]] | ||
| + | * [[BSD]] (CSRG flavor) version 3.0 - 4.3 | ||
| + | * [[NetBSD]] | ||
| + | * [[OpenBSD]] | ||
| + | ==Emulation== | ||
| − | == References == | + | [[SIMH]] is the only known emulator for the 11/780. SIMH can address up to 128MB of RAM emulating an 11/780. Also the following peripherals are emulated: |
| + | |||
| + | *CPU VAX-11/780 CPU | ||
| + | *TLB translation buffer | ||
| + | *SBI system bus controller | ||
| + | *MCTL0,MTCL1 memory controllers, MS780C with 4MB memory each, or MS780E with 8MB-64MB each | ||
| + | *UBA DW780 Unibus adapter | ||
| + | *MBA0,MBA1 RH780 Massbus adapters | ||
| + | *TODR time-of-day clock | ||
| + | *TMR interval timer | ||
| + | *TTI,TTO console terminal | ||
| + | *RX console RX01 floppy disk | ||
| + | *DZ [[DZ11]] 8-line terminal multiplexer (up to 4) | ||
| + | *CR [[CR11]] card reader | ||
| + | *LPT [[LP11]] line printer | ||
| + | *RP [[RP04]]/05/06/07, RM02/03/05/80 Massbus disks, up to eight drives | ||
| + | *HK [[RK611]]/RK06(7) cartridge disk controller with eight drives | ||
| + | *RL [[RL11]]/RL01(2) cartridge disk controller with four drives | ||
| + | *RQ [[UDA50]] MSCP controller with four drives | ||
| + | *RQB second UDA50 MSCP controller with four drives | ||
| + | *RQC third UDA50 MSCP controller with four drives | ||
| + | *RQD fourth UDA50 MSCP controller with four drives | ||
| + | *RY [[RX211]] floppy disk controller with two drives | ||
| + | *TS [[TS11]] magnetic tape controller with one drive | ||
| + | *TQ [[TUK50]] TMSCP magnetic tape controller with four drives | ||
| + | *TU [[TM03]] tape formatter with eight TE16/TU45/TU77 drives | ||
| + | *XU [[DEUNA]]/[[DELUA]] Ethernet controller | ||
| + | *XUB second [[DEUNA]]/[[DELUA]] Ethernet controller | ||
| + | |||
| + | More information about SIMH's VAX 11/780 emulation can be found [http://simh.trailing-edge.com/pdf/vax780_doc.pdf here]. | ||
| + | |||
| + | ==References== | ||
<div id="ref_1">[1] VAX Hardware Handbook Volume 1 - 1986. </div> | <div id="ref_1">[1] VAX Hardware Handbook Volume 1 - 1986. </div> | ||
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<div id="ref_3">[3] VAX Architecture Reference Manual. Timothy E. Leonard. 1987. EY-3459E-DP. ISBN 0-932376-86-X. | <div id="ref_3">[3] VAX Architecture Reference Manual. Timothy E. Leonard. 1987. EY-3459E-DP. ISBN 0-932376-86-X. | ||
<div id="ref_4">[4] Nothing Stops It! VAX Open VMS At 20. | <div id="ref_4">[4] Nothing Stops It! VAX Open VMS At 20. | ||
| + | |||
| + | {{Nav VAX}} | ||
Revision as of 13:02, 29 July 2017
| VAX-11/780 | |
| Summary | |
|---|---|
| Announcement date: | October 1977 |
| Codename: | Star |
| OS support (VMS): | VMS V1.5 |
| CPU Details | |
| CPU name (VMS): | KA780 |
| Number of processors: | 1 |
| CPU technology: | Bipolar Schottky |
| CPU cycle time: | 200ns |
| Instruction-buffer: | 8 bytes [1] |
| Translation-buffer: | 128 entries [1] |
| Control store: | 4K 99-bit words [1] |
| Gate delay: | 3ns |
| User Writable Control Store: | 2K 99-bit words [1] |
| Cache: | 8KB [1] |
| Compatibility mode: | Yes [1] |
| Console processor: | LSI-11 [1] |
| Console device: | RX01 [1] |
| Memory | |
| Minimum memory: | 2MB |
| Maximum memory: | 64MB |
| Physical address lines: | 30 |
| Memory checking: | 8-bit ECC/longword [1] |
| I/O | |
| Max I/O throughput: | 5.0MB/s |
| MASSBUS: | 4 @ 2.0MB/s |
| UNIBUS: | 4 @ 1.5MB/s |
| LAN support: | optional |
| Performance | |
| VUPs: | 1.0 |
The VAX-11/780 was the first member to ship of the VAX-11 family of larger computers. The VAX series was conceived as the successor to the successful PDP-11 series of minicomputers, and in order to make the VAX seem more PDP-11 friendly, they retained the -11 moniker for the first VAXen, hence the -11/780 designation.
It was announced on October 25th, 1977 at Digital Equipment Corporation's Annual Meeting of Shareholders.[4]
One of the main design goals was to increase the address space available, in fact the VAX acronym originally stood for Virtual Address eXtension).[3]
The first VAX-11/780 systems shipped with one quarter of a megabyte of memory, built from 4Kb chips.[3]
The 11/780 didn't have normal firmware, instead it loaded its microcode from floppy. There was also the VAX-11/785, which was an upgraded version.
The VAX-11/780 was given the codename "Star" and its operating system, VAX/VMS, was codenamed "Starlet".[4] VAX/VMS Version V1.0 shipped in 1978, along with the first revenue-ship 11/780s.
Operating Systems
The 11/780 was to ship with VMS 1.0.
Emulation
SIMH is the only known emulator for the 11/780. SIMH can address up to 128MB of RAM emulating an 11/780. Also the following peripherals are emulated:
- CPU VAX-11/780 CPU
- TLB translation buffer
- SBI system bus controller
- MCTL0,MTCL1 memory controllers, MS780C with 4MB memory each, or MS780E with 8MB-64MB each
- UBA DW780 Unibus adapter
- MBA0,MBA1 RH780 Massbus adapters
- TODR time-of-day clock
- TMR interval timer
- TTI,TTO console terminal
- RX console RX01 floppy disk
- DZ DZ11 8-line terminal multiplexer (up to 4)
- CR CR11 card reader
- LPT LP11 line printer
- RP RP04/05/06/07, RM02/03/05/80 Massbus disks, up to eight drives
- HK RK611/RK06(7) cartridge disk controller with eight drives
- RL RL11/RL01(2) cartridge disk controller with four drives
- RQ UDA50 MSCP controller with four drives
- RQB second UDA50 MSCP controller with four drives
- RQC third UDA50 MSCP controller with four drives
- RQD fourth UDA50 MSCP controller with four drives
- RY RX211 floppy disk controller with two drives
- TS TS11 magnetic tape controller with one drive
- TQ TUK50 TMSCP magnetic tape controller with four drives
- TU TM03 tape formatter with eight TE16/TU45/TU77 drives
- XU DEUNA/DELUA Ethernet controller
- XUB second DEUNA/DELUA Ethernet controller
More information about SIMH's VAX 11/780 emulation can be found here.
References
| v • d • e VAX Computers and Operating Systems |
|---|
| VAX-11/7xx (including VAX 86x0) - VAX-11/780 • VAX-11/785 • VAX-11/750 • VAX-11/730 • VAX-11/725 • VAX 8600 • VAX 8650
VAX 8000 series (excluding VAX 86x0, above) - VAX 82xx/83xx series • VAX 85xx/87xx/88xx series MicroVAXen (many types also come in VAXserver and VAXstation models) - MicroVAX I • MicroVAX II VAXstation Series - VAXstation I • VAXstation II Late Model VAXen - VAX 4000 series • VAX 6000 series • VAX 7000 series • VAX 9000 series • VAX 10000 series |
| Special Purpose VAXen - VAXft series • rtVAX series • Infoserver series
Clones - CM 1700 • TPA-11/580 |
