The MYCRO-1 was a

microcomputer A microcomputer is a small, relatively inexpensive computer having a central processing unit (CPU) made out of a microprocessor. The computer also includes memory and input/output (I/O) circuitry together mounted on a printed circuit board (P ...

manufactured and sold by Mycron of

Oslo Oslo ( or ; ) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of 1,064,235 in 2022 ...

Norway Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...

. Built around the

Intel 8080 The Intel 8080 is Intel's second 8-bit computing, 8-bit microprocessor. Introduced in April 1974, the 8080 was an enhanced successor to the earlier Intel 8008 microprocessor, although without binary compatibility.'' Electronic News'' was a week ...

CPU, it was one of the first commercial

single-board computer A single-board computer (SBC) is a complete computer built on a single circuit board, with microprocessor(s), memory, input/output (I/O) and other features required of a functional computer. Single-board computers are commonly made as demonst ...

after the Intel SDK-80. One is currently displayed at the

Norwegian Museum of Science and Technology The Norwegian Museum of Science and Technology () is located in Oslo, Norway. The museum is an anchor point on the European Route of Industrial Heritage. History The museum as an institution was founded in 1914 as a part of the commemorati ...

. When introduced, it was sold for approximately $6.000 MYCRO-1 is a microcomputer system based on the microprocessor Intel 8080. Some models have a

Zilog Z80 The Zilog Z80 is an 8-bit computing, 8-bit microprocessor designed by Zilog that played an important role in the evolution of early personal computing. Launched in 1976, it was designed to be Backward compatibility, software-compatible with the ...

CPU. Since the Z80 is

backward compatible In telecommunications and computing, backward compatibility (or backwards compatibility) is a property of an operating system, software, real-world product, or technology that allows for interoperability with an older legacy system, or with inpu ...

with the 8080, this was probably a cost reduction measure. The MYCRO-1 system was designed by MYCRON Data Industri as an entry In the market place for higher powered microcomputer systems. A typical basic configuration of the system: * DIM-1001 CPU * DIM-1013 16K-byte dynamic RAM * DIM-1090 Chassis with motherboard * DIM-1091 Power supply with switch panel

The modules available for the MYCRO-1 system

Computer modules

* DIM-1001 CPU (8080) * DIM-1003 CPU (Z80) * DIM-1027 High-speed slave CPU

Memory modules

* DIM-1010 4K-byte

static RAM Static random-access memory (static RAM or SRAM) is a type of random-access memory (RAM) that uses latching circuitry (flip-flop) to store each bit. SRAM is volatile memory; data is lost when power is removed. The ''static'' qualifier differ ...

* DIM-1012 4K-byte

PROM A promenade dance or prom is a formal dance party for graduating high school students at the end of the school year. Students participating in the prom will typically vote for a ''prom king'' and ''prom queen''. Other students may be honored ...

* DIM-1013 16K-byte dynamic RAM * DIM-1014 6K-byte

EPROM An EPROM (rarely EROM), or erasable programmable read-only memory, is a type of programmable read-only memory (PROM) integrated circuit, chip that retains its data when its power supply is switched off. Computer memory that can retrieve stored d ...

* DIM-1015 16K-byte static RAM * DIM-1016 64K-byte dynamic RAM

Input/output modules

* DIM-1019 Dual Serial I/O, Synchronous/Asynchronous * DIM-1020 4-channel serial I/O * DIM-1021 Two input and two output parallel I/O * DIM-1022 Triple serial I/O module * DIM-1030 Floppy disc controller * DIM-1031 Floppy disc controller * DIM-1035 12M-byte disk drive

Process control modules

* DIM-1023 32-channel digital input module * DIM-1025 8-channel pulse counter module * DIM-1026 16-channel digital output module * DIM-1029 16-channel level detector input module * DIM-1042 16-channel analog input modules * DIM-1043 8-channel analog output module * DIM-1044 16-channel analog diff. amp. input

Data storage

* DIP 11133 Single floppy disk drive unit * DIP 11134 Double floppy disk drive unit

Mycro-1 modules

* DIM-1090 Chassis with motherboard * DIM-1091 Power supply with switch panel

Peripherals

* DIP-1022 Display * DIP-1023 Teletype

Software

* DIS 1001 PROCOM * DIS 1002/1022 MYCRA one-pass assembler * DIS 1003 Editor text page editor * DIS 1007 Diskette service package * DIS 1010/1018 Floating point software packages * DIS 1011 Basic interpreter * DIS 1012 DDS diskette dataset support * DIS 1014 Mycrop diskette based monitor * DIS 1015 EPROM programmer routines * DIS 1018 Floating point software package * DIS 1019 QEdit Text editor * DIS 1020 Multi-access disk driver * DIS 1021 Mycrop with remote disk access * DIS 1024 Fast floating point micro program for DIM 1027 * DIS 1024E Communication package for Nord-10 * DIS 1027 MyMon. A real-time and time-sharing monitor for Mycro-1 * DIS 1029 PL/Mycro resident one-pass compiler * DIS 1030 DINIT diskette initialization program * DIS 1031 GRTS 115/Mycro-1 emulator * DIS 1032 Trace - a software debugging tool * DIS 1033 MyReg system for data registration on diskette * DIS 1034 Utility routines on the Mycron system diskette * DIS 1035 Pas 80 sequential Pascal compiler * DIS 1036 DLSM dataset label maintenance

References

{{Reflist

External links

Picture of a MYCRO-1 with additional floppy controller boardA Facebook page to discuss the MYCRO-1Pictures of a MYCRO-1
*Book: PL/MYCRO
a resident PL/M compiler for MYCRO-1

References Mycro-1 Single-board computers Mycron computers