Lilith (computer)

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DISER Lilith
Lilith-enter-museum.jpg
Developer ETH Zurich
ManufacturerModula Computer Systems
Product family Wirth
Type workstation
Release date1980;45 years ago (1980)
Introductory price$8000
DiscontinuedYes
Units sold120 [1]
Units shipped120
Media Floppy disk 5.25 in (13.3 cm) 140 K
Operating system Medos-2 (Modula-2)
CPU AMD 2901
Memory256 K (131,072 16-bit words)
Storage15 MB hard disk
Display12 in (30 cm) monochrome bitmapped
Dimensions15.5 in × 15 in × 14.5 in (39 cm × 38 cm × 37 cm)
Marketing targetResearch
Successor Ceres

The DISER Lilith is a custom built workstation computer based on the Advanced Micro Devices (AMD) 2901 bit slicing processor, created by a group led by Niklaus Wirth at ETH Zurich. [2] [3] The project began in 1977, and by 1984 several hundred workstations were in use. It has a high resolution full page portrait oriented cathode-ray tube display, a mouse, a laser printer interface, and a computer networking interface. Its software is written fully in Modula-2 and includes a relational database program named Lidas.

Contents

The Lilith processor architecture is a stack machine. [2] Citing from Sven Erik Knudsen's contribution to "The Art of Simplicity": "Lilith's clock speed was around 7 MHz and enabled Lilith to execute between 1 and 2 million instructions (called M-code) per second. (...) Initially, the main memory was planned to have 65,536 16-bit words memory, but soon after its first version, it was enlarged to twice that capacity. For regular Modula-2 programs however, only the initial 65,536 words were usable for storage of variables." [4]

History

The development of Lilith was influenced by the Xerox Alto from the Xerox PARC (1973) where Niklaus Wirth spent a sabbatical from 1976 to 1977. Unable to bring back one of the Alto systems to Europe, Wirth decided to build a new system from scratch between 1978 and 1980, selling it under the company name DISER (Data Image Sound Processor and Emitter Receiver System). [5] In 1985, he had a second sabbatical leave to PARC, which led to the design of the Oberon System. Ceres, the follow-up to Lilith, was released in 1987.

Operating system

Medos-2
Developer Svend Erik Knudsen
Written in Modula-2
OS family Wirth
Working stateDiscontinued
Initial release1983;42 years ago (1983)
Marketing targetResearch
Available inEnglish
Update methodCompile from source code
Package manager Modula-2 modules
PlatformsLilith (AMD 2901)
Kernel type Modular, object-oriented
Succeeded by Oberon

The Lilith operating system (OS), named Medos-2, was developed at ETH Zurich, by Svend Erik Knudsen with advice from Wirth. It is a single user, object-oriented operating system built from modules of Modula-2. [3] [6] [7]

Its design influenced the design of the OS Excelsior , developed for the Soviet Kronos workstation (see below), by the Kronos Research Group (KRG). [8]

Soviet variants

From 1986 into the early 1990s, Soviet Union technologists created and produced a line of printed circuit board systems, and workstations based on them, all named Kronos. The workstations were based on Lilith, and made in small numbers. [9]

Mouse

The computer mouse of the Lilith was custom-designed, and later used with the Smaky computers. It then inspired the first mice produced by Logitech.

References

  1. ↑ ETH Zurich: Ready. YouTube (video). Zürich, Switzerland: ETH Zurich. 15 June 2017. Event occurs at 1:25–1:35. Archived from the original on 21 December 2021. Retrieved 21 March 2021.
  2. 1 2 Ohran, Richard (August 1984). "Lilith and Modula-2: A case study of high-level-language processor design". Byte . pp. 181–192. Retrieved 6 March 2021. Reprint.
  3. 1 2 Sand, Paul A. (September 1984). "The Lilith Personal Computer". Byte . pp. 300–311. Retrieved 6 March 2021. Reprint.
  4. ↑ Böszörményi, László; Gutknecht, Jürg; Pomberger, Gustav, eds. (25 October 2000). The School of Niklaus Wirth: The Art of Simplicity. Morgan Kaufmann. ISBN   978-1558607231. ISBN   1-55860-723-4 & dpunkt, ISBN   3-932588-85-1.
  5. ↑ Wirth, Niklaus (January 1995). "A Brief History of Modula and Lilith". The ModulaTor. 0.
  6. ↑ Knudsen, Svend Erik (1983). Medos-2: A Modula-2 Oriented Operating System for the Personal Computer Lilith (PhD). ETH Zurich. doi:10.3929/ethz-a-000300091. hdl:20.500.11850/137906.
  7. ↑ Knudsen, Svend Erik (25 October 2000). "Medos in Retrospect". In Böszörményi, László; Gutknecht, Jürg; Pomberger, Gustav (eds.). The School of Niklaus Wirth: The Art of Simplicity. Morgan Kaufmann. pp. 69–86. ISBN   978-1558607231. ISBN   1-55860-723-4 & dpunkt, ISBN   3-932588-85-1.
  8. ↑ Kuznetsov, D.N.; Nedorya, A.E.; Tarasov, E.V.; Filippov, V.E. "Kronos: a family of processors for high-level languages". Kronos: History of a Project (in Russian). xTech. Retrieved 13 April 2021.
  9. ↑ "Kronos: History of a Project" (in Russian). xTech. Retrieved 8 April 2021.
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