Question: In which decade was the Ivel Z3 and the Prológica CP-400 developed in?
Context: The YM2414, a.k.a. OPZ, is an eight-channel sound chip developed by Yamaha.  It was used in many mid-market phase/frequency modulation-based synthesizers, including Yamaha's TX81Z (the first product to feature it, and was named after), DX11, YS200 family, the Korg Z3 guitar synthesizer, and many other devices.  A successor was released as the upgraded OPZII/YM2424, used only in the Yamaha V50. Protext is a British word processing program, developed by Arnor Ltd, of Peterborough in the decade following 1985.  Originally written for the Amstrad CPC464, it was later sold for the Amstrad PCW series of word processors, for MS-DOS based PCs, the Atari ST, and the Commodore Amiga.  A version was developed for the Acorn Archimedes and released in October 1990 which ran in full screen text mode, an accompanying note in the box mentioned Arnor's intention to develop a future release that would support operation in the RISC OS desktop with drag and drop capabilities, etc. but this was never developed. The Z22 was the seventh computer model Konrad Zuse developed (the first six being the Z1, Z2, Z3, Z4, Z5 and Z11, respectively).  One of the early commercial computers, the Z22's design was finished about 1955.  The major version jump from Z11 to Z22 was due to the use of vacuum tubes, as opposed to the electromechanical systems used in earlier models.  The first machines built were shipped to Berlin and Aachen. Ivel Z3 was an Apple IIe compatible computer developed by Ivasim in 1980s. 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. The BlackBerry Leap is a Smartphone developed by BlackBerry Limited.  Announced on March 3, 2015 at the Mobile World Congress with initial availability in April 2015, the Leap is a follow-on to the affordable Z3 model with a number of upgraded features.  Upgrades include LTE support, higher-resolution display and cameras, higher-performance CPU and GPU, double the internal storage capacity, and ships with the latest version of the BlackBerry 10 operating system.  Size and weight increased very slightly from the Z3 model. 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). The BlackBerry Z3 is a touchscreen smartphone developed by BlackBerry.  Announced in February 2014, it is the first BlackBerry phone produced in partnership with Foxconn.  Adopting a similar appearance and dimensions as BlackBerry Z30, Z3 is designed to be an entry-level version of Z30.  It was released on May 13, 2014 in Jakarta.  To celebrate the first BlackBerry phone designed for Indonesian market, there is a limited edition called "Jakarta Edition" available. Chak No. 90/M. L. is a village located in Tehsil Karor Lal Easan District Layyah in the Province of Punjab Pakistan.  It possess fertile land on the bank of Thal canal built by British Indian Government during the decade of 1940 and construction was completed at the end of this decade.  This land was barren and sandy in Thal desert before there came ancestors from Hoshiarpur District now located in Indian Punjab during the partition of Indo-PaK and they used the irrigation water from Thal Canal to irrigate their fields.  Initially the land was very fertile in patches where Sugarcane, cotton, wheat were grown successfully and contributed to country economy.  Some area was consists of sand dunes where in Rabi season Gram crop is grown successfully.  One of major portion of Gram yield is produced from Thal desert.  With the passage of time schools, roads, lined watercourses were developed by Government.  A high school for boys was constructed in 1976 while high school and college for Girls were built later on. Verbal Behavior is a 1957 book by psychologist B. F. Skinner, in which he inspects human behavior, describing what is traditionally called linguistics.  The book "Verbal Behavior" is almost entirely theoretical, involving little experimental research in the work itself.  It was an outgrowth of a series of lectures first presented at the University of Minnesota in the early 1940s and developed further in his summer lectures at Columbia and William James lectures at Harvard in the decade before the book's publication.  A growing body of research and applications based on "Verbal Behavior" has occurred since its original publication, particularly in the past decade.
Answer: developed by Ivasim in 1980s