Question: In which decade was the Ivel Z3 and the Prológica CP-400 developed in?

full_context: Document 1: Mark-8: The Mark-8 is a microcomputer design from 1974, based on the Intel 8008 CPU (which was the world's first 8-bit microprocessor). The Mark-8 was designed by graduate student Jonathan Titus and announced as a 'loose kit' in the July 1974 issue of "Radio-Electronics" magazine.
Document 2: Ivel Z3: Ivel Z3 was an Apple IIe compatible computer developed by Ivasim in 1980s.
Document 3: Aster CT-80: 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.
Document 4: Timeline of the Apple II family: This timeline of Apple II Family models lists all major types of Apple II computers produced by Apple Computer in order of introduction date. The Apple I, Apple III and Apple Lisa are included, even though they are not classed as part of the Apple II series (or a Macintosh), because of their unique role in Apple's product lineup of the era.
Document 5: Apple II series: The Apple II series (trademarked with square brackets as "Apple ][" and rendered on later models as "Apple //") is a family of home computers, one of the first highly successful mass-produced text command microcomputer products, designed primarily by Steve Wozniak, manufactured by Apple Computer (now Apple Inc.) and introduced in 1977 with the original Apple II. In terms of ease of use, features and expandability, the Apple II was a major technological advancement over its predecessor, the Apple I, a limited-production bare circuit board computer for electronics hobbyists that pioneered many features that made the Apple II a commercial success. Introduced at the West Coast Computer Faire on April 16, 1977, the Apple II was among the first successful personal computers; it launched the Apple company into a successful business (and allowed several related companies to start). Throughout the years, a number of models were sold, with the most popular model remaining relatively little changed into the 1990s. While primarily an 8-bit computer, by mid-run a 16-bit model was introduced.
Document 6: Galeb (computer): Galeb (en. "Seagull") was an 8-bit computer developed by the PEL Varaždin company in Yugoslavia in the early 1980s. A grand total of 250 were produced by the end of the summer of 1984, before being replaced by Orao.
Document 7: Amstrad PCW: The Amstrad PCW series is a range of personal computers produced by British company Amstrad from 1985 to 1998, and also sold under licence in Europe as the "Joyce" by the German electronics company Schneider in the early years of the series' life. The PCW, short for "Personal Computer Word-processor", was targeted at the wordprocessing and home office markets. When it was launched the cost of a PCW system was under 25% of the cost of almost all IBM-compatible PC systems in the UK, and as a result the machine was very popular both in the UK and in Europe, persuading many technophobes to venture into using computers. However the last two models, introduced in the mid-1990s, were commercial failures, being squeezed out of the market by the falling prices, greater capabilities and wider range of software for IBM-compatible PCs.
Document 8: Apple IIc Plus: The Apple IIc Plus is the sixth and final model in the Apple II series of personal computers, produced by Apple Computer. The ""Plus"" in the name was a reference to the additional features it offered over the original portable Apple IIc, such as greater storage capacity (a built-in 3.5-inch floppy drive replacing the classic 5.25-inch drive), increased processing speed, and a general standardization of the system components. In a notable change of direction, the Apple IIc Plus, for the most part, did not introduce new technology or any further evolutionary contributions to the Apple II series, instead merely integrating existing peripherals into the original Apple IIc design. The development of the 8-bit machine was criticized by quarters more interested in the significantly more advanced 16-bit Apple II.
Document 9: Apple IIc: The Apple IIc, the fourth model in the Apple II series of personal computers, is Apple Computer’s first endeavor to produce a portable computer. The result was a 7.5 lb notebook-sized version of the Apple II that could be transported from place to place. The "c" in the name stood for "compact", referring to the fact it was essentially a complete Apple II computer setup (minus display and power supply) squeezed into a small notebook-sized housing. While sporting a built-in floppy drive and new rear peripheral expansion ports integrated onto the main logic board, it lacks the internal expansion slots and direct motherboard access of earlier Apple IIs, making it a closed system like the Macintosh. However, that was the intended direction for this model — a more appliance-like machine, ready to use out of the box, requiring no technical know-how or experience to hook up and therefore attractive to first-time users.
Document 10: Komputer 2086: The Unipolbrit Komputer 2086 was a Polish version of the home computer Timex Sinclair 2068, produced by a joint venture of the Polish Unimor and Timex Computer of Portugal. The machine wasn't 100% ZX Spectrum-compatible (like all other Timex Sinclair versions) and a "Spectrum Emulation" cartridge was available (usually bundled).
Document 11: Orao (computer): Orao (en. "Eagle") was an 8-bit computer developed by PEL Varaždin in 1984. Its marketing and distribution was done by "Velebit Informatika". It was used as a standard primary school computer in Croatia and Vojvodina from 1985 to 1991.
Document 12: LocoScript: The word processing software package LocoScript by Locomotive Software was introduced as one of the programs bundled with the Amstrad PCW, a personal computer launched in 1985. Early versions of LocoScript were noted for combining a wide range of facilities with outstanding ease of use. This and the low price of the hardware made it one of the best-selling word processors of the late 1980s. Four versions of LocoScript were published for the PCW, and two for IBM-compatible PCs running under MS-DOS. LocoScript's market share didn't expand with the PC versions, which were not released until after Windows became the dominant PC operating system.
Document 13: Ivel Ultra: Ivel Ultra was an Apple II compatible computer developed by Ivasim in 1980s. There are two model of the computer; The first model is brown and the second model is white.
Document 14: KC 85: The KC 85 ('KC' meaning "Kleincomputer", or "small computer") were models of microcomputers built in East Germany, first in 1984 by Robotron (the KC 85/1) and later by VEB Mikroelektronik "Wilhelm Pieck" Mühlhausen (KC 85/2, KC 85/3 and KC 85/4).
Document 15: Prológica CP-400: In the middle of 1984 a Brazilian company called Prológica, which made its own versions of 8 bits US computers, brought to the Brazilian market a new equipment for its personal computer series called "CP" (shorten of Personal Computer in Portuguese).
ground_truth: developed by Ivasim in 1980s