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Some Related Sentences

LSI-11 and PDP-11
Digital Equipment Corporation should not be confused with the unrelated companies Digital Research, Inc or Western Digital ( despite the latter manufacturing the LSI-11 chipsets used in DEC's low end PDP-11 / 03 computers ).
; PDP-11: The archetypal minicomputer ; a 16-bit machine and another commercial success for DEC. ( Also the LSI-11, primarily for embedded systems ).
In 1994 DEC sold the PDP-11 system-software rights to Mentec Inc., an Irish producer of LSI-11 based boards for Q-Bus and ISA architecture personal computers, and in 1997 discontinued PDP-11 production.
* PDP-11 / 03 ( also known as the LSI-11 / 03 ) — The first LSI PDP-11, this system used a chipset from Western Digital and supported 60 kB of memory.
# Redirect PDP-11 # LSI-11
* LSI-11, an early large-scale integration computer processor that implemented the DEC PDP-11 instruction set
TSX-Plus is a multi-user operating system for the PDP-11 / LSI-11 series of computers.
Due to the constraints of the memory management system in the PDP-11 / LSI-11, the entire operating system core must occupy no more than 40 kibibytes of memory, out of a maximum possible 4 mebibytes of physical memory that can actually be installed in those machines ( mandated by the 22-bit address space ).
It was binary compatible with Unix V6 on PDP-11, but it could run on non-memory managed systems ( like LSI-11 or PDP-11 / 23 ) as well.
The PRO-325 and-350 used the F-11 chipset ( as used in LSI-11 / 23 systems ) to create a relatively compact single-board PDP-11 with up to 6 expansion slots of proprietary CTI ( Computing Terminal Interconnect ) bus using 90-pin ZIF connectors.
Bell Labs developed several variants of V6, including the stripped-down MINI-UNIX for low-end PDP-11 models, LSI-UNIX or LSX for the LSI-11, and the real-time operating system UNIX / RT, which merged V6 Unix and the earlier MERT hypervisor.
In its final incarnation, Belle was composed of a PDP-11 / 23 with a LSI-11 processor, and many custom boards.

LSI-11 and /
Q-Bus board with LSI-11 / 2 CPU
Later Q-Bus based systems such as the LSI-11 / 23, / 73, and / 83 were based upon chip sets designed in house by Digital Equipment Corporation.
LSI-11 / 23, cover removed
* MicroPDP-11 / 73 — The third generation LSI-11, this system used the faster " Jaws-11 " ( J-11 ) chip set and supported up to 4 MB of memory.
All three employed the same chipset as used on the LSI-11 / 03 and LSI-11 / 2 in four " microm " s. There was an option which combined two of the microms into one dual carrier, freeing one socket for an EIS / FIS chip.
* H11 — Heathkit OEM version of the LSI-11 / 03.
* VT71 — Terminal with LSI-11 / 03 and QBUS backplane with direct mapped character display for text editing and typesetting.
* On LSI-11, RT-11, Megabytes of Memory and Modula-2 / VRS by Günter Dotzel, ModulaWare. com-An article on Modula-2 compiler / linker synergy to overcome the PDP / LSI-11 address space limitations, published in DEC Professional: the magazine for DEC users, Professional Press, Spring House, PA. U. S. A., January 1986.
He invented the Network Time Protocol ( 1981 ), the DEC LSI-11 based fuzzball router that was used for the 56 kbit / s NSFNET ( 1985 ), the Exterior Gateway Protocol ( 1984 ), inspired the author of ping for BSD ( 1983 ), and had the first FTP implementation.

LSI-11 and was
It was almost perfectly compatible with Digital Equipment Corporation's LSI-11 line, though it lacked EIS and further command set extensions.
The MCP-1600 was used to implement DEC's LSI-11 system and their own Pascal MicroEngine microcomputer which ran the UCSD p-System Version III and UCSD Pascal.
It was a clone of a DEC LSI-11.
It was a desktop workstation with an LSI-11 compatible processor, a graphical frame buffer, and a text mode with downloadable fonts.
Unlike other 16-bit microprocessors such as the National Semiconductor IMP-16 or DEC LSI-11, some of which predated the TMS9900, the latter was a single-chip, self-contained 16-bit microprocessor.
The Q-bus ( also known as the LSI-11 Bus ) was one of several bus technologies used with PDP and MicroVAX computer systems manufactured by the Digital Equipment Corporation of Maynard, Massachusetts.

LSI-11 and by
They were DEC LSI-11 computers loaded with the Fuzzball software written by David L. Mills ( of the University of Delaware ).

PDP-11 and /
Megabyte was used to describe the 22-bit addressing of DEC PDP-11 / 70 ( 1975 )
The effort was sufficiently complete that during the summer of 1973 the Unix kernel for the PDP-11 was rewritten in C. During the 1972 – 73 period there was a need to port to Honeywell 635 and IBM 360 / 370 machines, so Mike Lesk wrote the " portable I / O package " which would become the C " standard I / O " routines.
Many more machines offered user-programmable writable control stores as an option ( including the HP 2100, DEC PDP-11 / 60 and Varian Data Machines V-70 series minicomputers ).
Implementations also exist for the Interdata 8 / 32, PDP-11, VAX, Alpha platforms and HP Integrity servers ; for the Honeywell, and for the Computer Technology Limited ( CTL, later ITL ) Modular-1 ; as well as for SPARC running Solaris and Intel running Linux.
* PDP-11 CORAL / ASM interfacing library
Examples of CISC instruction set architectures are System / 360 through z / Architecture, PDP-11, VAX, Motorola 68k, and x86.
The PDP-11 supported several operating systems, including Bell Labs ' new Unix operating system as well as DEC's DOS-11, RSX-11, IAS, RT-11, DSM-11, and RSTS / E.
Large numbers of PDP-11 / 70s were deployed in telecommunications and industrial control applications.
ed was originally written in PDP-11 / 20 assembler by Ken Thompson in 1971.
The most significant were Digital Equipment Corporation with DSM ( Digital Standard MUMPS ), InterSystems with ISM ( InterSystems M ) on VMS and UNIX, and M / 11 + on the PDP-11 platform.
* The Digital Equipment Corporation PDP-11 processors, with the exception of the PDP-11 / 20, were microprogrammed.
KL10 frontend PDP-11 / 40
The KL class machines could not be started without the assist of a PDP-11 / 40 frontend computer installed in every system.
PDP-11 / 40
Design features of the PDP-11 influenced the design of microprocessors such as the Motorola 68000 ; design features of its operating systems, as well as other operating systems from Digital Equipment, influenced the design of other operating systems such as CP / M and hence also MS-DOS.
The first officially named version of Unix ran on the PDP-11 / 20 in 1970.
PDP-11 / 40 with TU56 dual DECtape drive.
The last models of the PDP-11 line were the PDP-11 / 94 and-11 / 93 introduced in 1990.

0.849 seconds.