The Aster CT-80, an early (1982) home/personal computer developed by the small Dutch company MCP (later renamed to Aster Computers), was sold in its first incarnation as a kit for hobbyists.
 Later it was sold ready to use.
 It consisted of several Eurocard PCB's with DIN 41612 connectors, and a backplane all based on a 19-inch rack configuration.
 It was the first commercially available Dutch personal/home computer.
 The Aster computer could use the software written for the popular Tandy TRS-80 computer while fixing many of the problems of that computer, but it could also run CP/M software, with a big amount of free memory Transient Program Area, (TPA) and a full 80×25 display, and it could be used as a Videotext terminal.
 Although the Aster was a clone of the TRS-80 Model I it was in fact more compatible with the TRS-80 Model III, and ran all the software of these systems including games.
 It also had a built in speaker which was compatible with such games software.
The Elektor Junior Computer was a simple 6502-based microprocessor development board published in the 1980s in the Dutch, German and later French, Spanish and British versions of "Elektor/Elektuur", in the form of a series of articles, and four books.
 It was developed by the German engineer Loys Nachtmann.
CER model 10 was a vacuum tube, transistor and electronic relay based computer developed at IBK-Vinča and the Mihajlo Pupin Institute (Belgrade) in 1960.
 It was the first digital computer developed in SFR Yugoslavia, and in Southern Europe.
The NeXTcube was a high-end workstation computer developed, manufactured, and sold by NeXT from 1990 until 1993.
 It superseded the original NeXT Computer workstation and is housed in a similar cube-shaped magnesium enclosure.
 The workstation runs the NeXTSTEP operating system and was launched with a list price.
The NeXT Computer (also called the NeXT Computer System) is a workstation computer developed, marketed, and sold by NeXT Inc.
 It runs the Mach- and BSD-derived, Unix-based NeXTSTEP operating system, with a proprietary GUI using a Display PostScript-based back end.
 The motherboard is square and fits into one of four identical slots in the enclosure.
 The NeXT Computer enclosure consists of a 1-foot (305 mm) die-cast magnesium cube-shaped, black case, which led to the machine being informally referred to as "The Cube".
 It was launched in 1988 at .
The FM-8 (Fujitsu Micro 8) was a personal computer developed and manufactured by Fujitsu in May 1981.
 It was Fujitsu's second microcomputer released to the public after the LKIT-8 kit computer, and the first in the "FM" series.
 The FM-8 would later be replaced by two new models in November 1982 - the FM-11, aimed at businesses and the FM-7 aimed at the mass market.
Tiki Data was a manufacturer of microcomputers, located in Oslo, Norway.
 The company was founded in 1983 by Lars Monrad Krohn and Gro Jørgensen, and was targeting the then emerging computer market in the educational sector.
 Following the launch of the Tiki 100 computer, which was designed by Tiki Data from the bottom up, the company started publishing software for the educational sector.
Setun (Russian: Сетунь ) was a computer developed in 1958 at Moscow State University.
 It was built under the leadership of Sergei Sobolev and Nikolay Brusentsov.
 It was the most modern ternary computer, using the balanced ternary numeral system and three-valued ternary logic instead of the two-valued binary logic prevalent in other computers.
 The computer was built to fulfill the needs of Moscow State University.
 It was manufactured at the Kazan Mathematical plant.
 Fifty computers were built from 1959 and production was halted in 1965.
 The characteristic operating memory consisted of 81 words of memory, each word composed of 18 trits (ternary digits) with additional 1944 words on magnetic drum (total of about 7 KB).
 Between 1965 and 1970, a regular binary computer was used at Moscow State University to replace it.
 Although this replacement binary computer performed equally well, it had 2.5 times the cost of the Setun.
 In 1970, a new ternary computer architecture, the Setun-70, was developed; it was implemented only in the form of a simulator program running on a binary computer.
Heinz Zemanek (1 January 1920 – 16 July 2014) was an Austrian computer pioneer who led the development, from 1954 to 1958, of one of the first complete transistorised computers on the European continent.
 The computer was nicknamed Mailüfterl — German for "May breeze" — in reference to Whirlwind, a computer developed at MIT between 1945 and 1951.
Tiki-100 was a desktop home/personal computer manufactured by Tiki Data of Oslo, Norway.
 The computer was launched in the spring of 1984 under the original name Kontiki-100, and was first and foremost intended for the emerging educational sector, especially for primary schools.
 Early prototypes had 4 KB ROM, and the '100' in the machine's name was based on the total KB amount of memory.

Question: Were both the Tiki 100 and Elektor Junior Computer developed or manufactured by European entities?
Answer: yes