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ELeMeNt ZX
The following is a list of clones of Sinclair Research's ZX Spectrum home computer. This list includes both official clones (from Timex Corporation) and many unofficial clones, most of which were produced in Eastern Bloc countries. The list does not include computers which require additional hardware or software to become ZX-compatible. Many software emulators can fully or partially emulate some clones as well. Official The only official clones of the Spectrum were made by Timex. There were three models developed, only two of which were released: Timex Sinclair 2068 The Timex Sinclair 2068 or T/S 2068 (also known as TC 2068 or UK 2086) was a significantly more sophisticated machine than the original Spectrum. The most notable changes were the addition of a cartridge port, an AY-3-8912 sound chip, and an improved ULA giving access to better graphics modes. The T/S 2068 was produced for consumers in the United States, while very similar machines were marketed in Portugal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clone (computer Science)
In computing, a clone is computer hardware, hardware or software that is designed to function in exactly the same way as another system. A specific subset of clones are remakes (or remades), which are revivals of old, obsolete, or discontinued products. Motivation Clones and remakes are created for reasons including competition, standardization, availability across platforms, and as Homage (arts), homage. computer compatibility, Compatibility with the original system is usually the explicit purpose of cloning hardware or low-level software such as operating systems (e.g. AROS Research Operating System, AROS and MorphOS are intended to be compatible with AmigaOS). Application software is cloned by providing the same functionality. Commercially-motivated clones are made often during a competitor product's initial successful commercial run, intentionally competing with the original and trying to participate in their success. Hardware Hardware clones When IBM announced the IBM ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinclair User
The ''Sinclair User'' was a magazine dedicated to the Sinclair Research range of home computers, most specifically the ZX Spectrum (while also occasionally covering arcade games). Initially published by ECC Publications, and later EMAP, it was published in the UK between 1982 and 1993, and was the longest running Sinclair-based magazine. The magazine contained news, game reviews, previews, tips, help guides, columns, readers' letters, and cover-mounted game demos. History In earlier years, the magazine built up personality cults around some of its "hilariously" monikered staff, including Bill "Incorruptible" Scolding, John "Disgusting" Gilbert, Chris "Lunchbreaks" Bourne, Claire "Ligger" Edgely, Richard Price (writer of the "Gordo Greatbelly" adventure tips section), and columnist Andrew Hewson (founder of Hewson Consultants software). Under David Kelly's editorial tenure, the magazine began to focus more on the gaming scene, and featured more colour graphics under designer Gar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Processing Unit
A central processing unit (CPU), also called a central processor, main processor, or just processor, is the primary Processor (computing), processor in a given computer. Its electronic circuitry executes Instruction (computing), instructions of a computer program, such as arithmetic, logic, controlling, and input/output (I/O) operations. This role contrasts with that of external components, such as main memory and I/O circuitry, and specialized coprocessors such as graphics processing units (GPUs). The form, CPU design, design, and implementation of CPUs have changed over time, but their fundamental operation remains almost unchanged. Principal components of a CPU include the arithmetic–logic unit (ALU) that performs arithmetic operation, arithmetic and Bitwise operation, logic operations, processor registers that supply operands to the ALU and store the results of ALU operations, and a control unit that orchestrates the #Fetch, fetching (from memory), #Decode, decoding and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 Intel 8080, offering a compelling alternative due to its better Integrated circuit, integration and increased performance. Along with the 8080's seven Processor register, registers and flags register, the Z80 introduced an alternate register set, two 16-bit index registers, and additional instructions, including bit manipulation and block copy/search. Originally intended for use in embedded systems like the 8080, the Z80's combination of compatibility, affordability, and superior performance led to widespread adoption in video game systems and home computers throughout the late 1970s and early 1980s, helping to fuel the personal computing revolution. The Z80 was used in iconic products such as the Osborne 1, TRS-80, Radio Shack TRS-80, Col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
U880
The U880 is an 8-bit microprocessor that was manufactured by VEB Mikroelektronik "Karl Marx" Erfurt (abbreviated as MME; part of Kombinat Mikroelektronik Erfurt) in the German Democratic Republic. Production of the U880 started in 1980 at VEB Funkwerk Erfurt (abbreviated as FWE; the plant was renamed to VEB Mikroelektronik "Karl Marx" in 1983). The U880 is an unlicensed clone of the Zilog Z80 microprocessor, also supporting illegal opcodes and bugs, except for very minor differences like not setting the CY flag for the command (when L goes zero). Processor variants The U880 was manufactured in NMOS technology and encased in a plastic DIL40 package with a pin spacing of 2.5 mm (export versions had the Western pin spacing of 2.54 mm; Russian variants also came in a ceramic package). The military version of the U880 has an additional "MEK 4" marking. Image:Robotron UA880D MME 1.jpg, UA880D (1986) Image:Robotron UB880D MME S1 1.jpg, UB880D S1 hobbyist version ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czechoslovakia
Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland became part of Nazi Germany, while the country lost further territories to First Vienna Award, Hungary and Trans-Olza, Poland (the territories of southern Slovakia with a predominantly Hungarian population to Hungary and Zaolzie with a predominantly Polish population to Poland). Between 1939 and 1945, the state ceased to exist, as Slovak state, Slovakia proclaimed its independence and Carpathian Ruthenia became part of Kingdom of Hungary (1920–1946), Hungary, while the German Protectorate of Bohemia and Moravia was proclaimed in the remainder of the Czech Lands. In 1939, after the outbreak of World War II, former Czechoslovak President Edvard Beneš formed Czechoslovak government-in-exile, a government-in-exile and sought recognition from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skalica
Skalica (, , Latin: ''Sakolcium'') is the largest town in Skalica District in western Slovakia in the Záhorie region. Located near the Czech Republic, Czech border, Skalica has a population of around 15,000. Etymology The name is derived from Slovak word ''skala'' (a rock) referring to the cliffs the inhabitants built their settlement over. The first written record of Skalica was made in 1217 as ''Szacholca''. History The site has been inhabited since 4000 BC and was part of the Great Moravian Empire. From the second half of the 10th century until 1918, it was part of the Kingdom of Hungary. The settlement developed around a triangular plaza, which was rare during the Middle Ages. Its town privileges were conferred in 1372 by King Louis I of Hungary. In 1428 Skalica became a bastion for the Hussites; during the Hussite Wars, the majority of its then predominantly German-speaking populace fled or was exiled. Many Habaners (adherents of a sect similar to Anabaptism) settled in Ska ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didaktik
The Didaktik was a series of 8-bit home computers based on the clones of Intel 8080 and Zilog Z80 processors produced by Didaktik in Skalica, in the former Czechoslovakia. Initially the company produced PMD 85 compatible machines aimed at schools, then switching to the home market with ZX Spectrum clones. Didaktik's glory diminished with the falling price of the 16-bit computers, such as the Atari and Amiga, around the middle of the 1990s until it was finally steam-rolled by the PC soon after. The production of Didaktik computers stopped in the year 1994. Didaktik Alfa Didaktik Alfa was produced in 1986, as a "more professional" clone of PMD 85. It featured 2.048 MHz Intel 8080 CPU, 48 KB RAM, 8 KB ROM with built-in BASIC, good keyboard (compared with PMD 85), monitor video output (but no TV output) with 288×256 resolution and four possible colours. Despite some changes in ROM, it was mostly compatible with PMD 85. Didaktik Alfa 1 was a clone of PMD 85-1, Di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Breadboard
A breadboard, solderless breadboard, or protoboard is a construction base used to build semi-permanent prototypes of electronic circuits. Unlike a perfboard or stripboard, breadboards do not require soldering or destruction of tracks and are hence reusable. For this reason, breadboards are also popular with students and in technological education. A variety of electronic systems may be prototyped by using breadboards, from small analog and digital circuits to complete central processing units (CPUs). Compared to more permanent circuit connection methods, modern breadboards have high parasitic capacitance, relatively high resistance, and less reliable connections, which are subject to jostle and physical degradation. Signaling is limited to about 10 MHz, and even well below that frequency not everything works properly. History In the early days of radio, amateurs nailed bare copper wires or terminal strips to a wooden board (often literally a bread cutting board) and sold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
16-bit Computer
16-bit microcomputers are microcomputers that use 16-bit microprocessors. A 16-bit register can store 216 different values. The range of integer values that can be stored in 16 bits depends on the integer representation used. With the two most common representations, the range is 0 through 65,535 (216 − 1) for representation as an ( unsigned) binary number, and −32,768 (−1 × 215) through 32,767 (215 − 1) for representation as two's complement. Since 216 is 65,536, a processor with 16-bit memory addresses can directly access 64 KB (65,536 bytes) of byte-addressable memory. If a system uses segmentation with 16-bit segment offsets, more can be accessed. As of 2025, 16-bit microcontrollers cost well under a dollar (similar to close in price legacy 8-bit); the cheapest 16-bit microcontrollers cost less than other types including any 8-bit (and are more powerful, and easier to program generally), making 8-bit legacy microcontrollers not worth it for new applications; 32- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Top Gun (video Game)
The list of ''Top Gun'' video games has several licensed video games based on the film series, which started with ''Top Gun'' (1986). ''Top Gun'' (Ocean game) The Ocean Software version of ''Top Gun'' was released for various home computer formats in 1986. It was released for Atari ST, Commodore 64, ZX Spectrum, and Amstrad CPC. It is a one-on-one dogfighting simulator with 3D wire-frame model graphics, unique among more traditional sprite-based graphics and straightforward gameplay of the subsequent games. It has one and two-player modes; in the former, the opposing aircraft is flown by the computer. ''Top Gun'' (Konami game) The Konami version of ''Top Gun'' was released for Nintendo Entertainment System (NES) in November 1987 in the United States. It is an adaptation of an earlier arcade game by Konami titled ''Vs. Top Gun'', released for the Nintendo VS. System. Two million copies of the NES version were sold. Piloting an F-14 Tomcat fighter, the player, as the film's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
