UKNC () is a

Soviet The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...

PDP-11 The PDP–11 is a series of 16-bit minicomputers originally sold by Digital Equipment Corporation (DEC) from 1970 into the late 1990s, one of a set of products in the Programmed Data Processor (PDP) series. In total, around 600,000 PDP-11s of a ...

-compatible

educational Education is the transmission of knowledge and skills and the development of character traits. Formal education occurs within a structured institutional framework, such as public schools, following a curriculum. Non-formal education also fol ...

micro computer, aimed at teaching school

informatics Informatics is the study of computational systems. According to the Association for Computing Machinery, ACM Europe Council and Informatics Europe, informatics is synonymous with computer science and computing as a profession, in which the centra ...

courses. It is also known as Elektronika MS-0511. UKNC stands for Educational Computer by Scientific Centre. It was designed by the Scientific Centre in

Zelenograd Zelenograd (, , ) is a city and administrative okrug of Moscow, Russia. The city of Zelenograd and the territory under its jurisdiction form the Zelenogradsky Administrative Okrug (ZelAO), an exclave located within Moscow Oblast, north-west ...

. About 310,000 UKNC computers were produced, in five different factory complexes across the Soviet Union. Three were located in Russia, one in

Šiauliai Šiauliai ( ; ) is a city in northern Lithuania, the List of cities in Lithuania, country's fourth largest city and the List of cities in the Baltic states by population, sixth largest city in the Baltic States, with a population of 112 581 in 202 ...

Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...

; one in

Tbilisi Tbilisi ( ; ka, თბილისი, ), in some languages still known by its pre-1936 name Tiflis ( ), ( ka, ტფილისი, tr ) is the Capital city, capital and List of cities and towns in Georgia (country), largest city of Georgia ( ...

Georgia Georgia most commonly refers to: * Georgia (country), a country in the South Caucasus * Georgia (U.S. state), a state in the southeastern United States Georgia may also refer to: People and fictional characters * Georgia (name), a list of pe ...

; and one in

Chișinău Chișinău ( , , ; formerly known as Kishinev) is the Capital city, capital and List of cities and towns in Moldova, largest city of Moldova. The city is Moldova's main industrial and commercial centre, and is located in the middle of the coun ...

Moldova Moldova, officially the Republic of Moldova, is a Landlocked country, landlocked country in Eastern Europe, with an area of and population of 2.42 million. Moldova is bordered by Romania to the west and Ukraine to the north, east, and south. ...

Hardware

* Processor: KM1801VM2 1801 series CPU @ 8 MHz, 16 bit data bus, 17 bit address bus * Peripheral processor: KM1801VM2 @ 6.25 MHz * CPU RAM: 64 KiB * PPU RAM: 32 KiB * ROM: 32 KiB * Video RAM: 96 KiB (3 planes 32 KiB each, each 3-bit pixel had a bit in each plane) * Graphics: max with 8 colors in one line (16 or 53 colors on whole screen), it is possible to set an individual palette, resolution (80, 160, 320, or 640 dots per line) and memory address for each of 288 screen lines; no text mode. * Keyboard: 88 keys (MS-7007), JCUKEN layout * Built-in

LAN Lan or LAN may refer to: Science and technology * Local asymptotic normality, a fundamental property of regular models in statistics * Longitude of the ascending node, one of the orbital elements used to specify the orbit of an object in space * ...

controller * Built-in controller for common or special tape-recorder with computer control (to use for data storage, usually 5-inch FDD's were used) One unique part of the design is the usage of a peripheral processing unit (PPU). Management of peripheral devices (display, audio, and so on) was offloaded to the PPU, which can also run user programs. YAMAYAMA

The design of the case, the layout of the keyboard, the location and the shape of expansion slots are inspired by the Yamaha

MSX MSX is a standardized home computer architecture, announced by ASCII Corporation on June 16, 1983. It was initially conceived by Microsoft as a product for the Eastern sector, and jointly marketed by Kazuhiko Nishi, the director at ASCII Corpo ...

system, which was purchased by the Soviet Union in the early 1980s for use in schools. The same case, with changed markings, is found with the

IBM PC clone An IBM PC compatible is any personal computer that is hardware- and software-compatible with the IBM Personal Computer (IBM PC) and its subsequent models. Like the original IBM PC, an IBM PC–compatible computer uses an x86-based central pro ...

called Elektronika MS-1502. The same case and keyboard are found on another educational computer called Rusich ( i8085 based). The computer was released in 3 sub-models: 0511, 0511.1, 0511.2. The 0511.1 model, intended for home use, has a power supply for 220 V AC, while others use 42 V AC. The 0511.2 features new firmware with extended functionality and changed the marking of the keyboard's gray keys, compared to the initial version. There is no active cooling, and at least the 0511.2 variant tends to overheat and halt after several hours of operation.

Software

Operating system An operating system (OS) is system software that manages computer hardware and software resources, and provides common daemon (computing), services for computer programs. Time-sharing operating systems scheduler (computing), schedule tasks for ...

: RAFOS, FODOS (

RT-11 RT-11 (Real-time 11) is a discontinued small, low-end, single-user real-time operating system for the full line of Digital Equipment Corporation PDP-11 16-bit computers. RT-11 was first implemented in 1970. It was widely used for real-time compu ...

clones), or RT-11SJ/FB *

control program *

Programming language A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually def ...

s: **

BASIC Basic or BASIC may refer to: Science and technology * BASIC, a computer programming language * Basic (chemistry), having the properties of a base * Basic access authentication, in HTTP Entertainment * Basic (film), ''Basic'' (film), a 2003 film ...

( Vilnius BASIC) ** Fortran ** Pascal **

Modula-2 Modula-2 is a structured, procedural programming language developed between 1977 and 1985/8 by Niklaus Wirth at ETH Zurich. It was created as the language for the operating system and application software of the Lilith personal workstation. It w ...

** C ** Assembler ** Rapira ** E-practicum **

Logo A logo (abbreviation of logotype; ) is a graphic mark, emblem, or symbol used to aid and promote public identification and recognition. It may be of an abstract or figurative design or include the text of the name that it represents, as in ...

Prolog Prolog is a logic programming language that has its origins in artificial intelligence, automated theorem proving, and computational linguistics. Prolog has its roots in first-order logic, a formal logic. Unlike many other programming language ...

** Forth ** FOCAL

Hardware

Software

References

See also