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Topic: ZX80

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	Sinclair ZX81 - Wikipedia, the free encyclopedia
		Video output, as in the ZX80, was to a television set, and saving and loading programs was via an ordinary home audio tape recorder to magnetic audio tapes.
		As with the ZX80, the processor was a NEC Zilog Z80 -compatible, only this time of the slightly higher clock rate of 3.5 MHz.
		The ZX81 could run in FAST mode like the ZX80, blanking while programs ran, or in SLOW mode (approximately 1/4 as fast) in which the video was maintained since programs ran only while the TV's electron gun moved from the bottom to the screen back to the top.
	en.wikipedia.org /wiki/Sinclair_ZX81 (2412 words)

	Sinclair ZX80 - Wikipedia
		Il Sinclair ZX80 non supportava colori nÃ¨ sonoro, il Basic poteva trattare solo numeri interi e la tastiera si rovinava in fretta.
		Il Sinclair ZX80 era un computer concepito nell'ottica del risparmio, tant'Ã¨ vero che veniva venduto anche in kit di montaggio; in questo caso, gli acquirenti dovevano provvedere da sÃ© a montare e saldare i relativi componenti.
		Il Sinclair ZX80 fu il capostipite di una nuova e piÃ¹ potente serie di home computer, usati prevalentemente per i giochi.
	it.wikipedia.org /wiki/Sinclair_ZX80 (320 words)

	Sinclair ZX80 - Wikipedia, the free encyclopedia
		The Sinclair ZX80 was a home computer brought to market in 1980 by Sinclair Research.
		The video display generator of the ZX80 used very minimalistic hardware plus a combination of software to generate a video signal.
		As a result of this approach the ZX80 could only generate a picture when it was idle, i.e.
	en.wikipedia.org /wiki/ZX80 (386 words)

	SINCLAIR ZX 80 - the first affordable home computer
		Thus the ZX80 was the first computer that dove under the magic 100-pounds-limit, making it possible for many more people to use a computer at home.
		Abroad the ZX80 also destroyed the price-limits: in the United States the price for a ready-built one was 199,95 dollar and in Western-Germany consumers had to pay 498 mark.
		With its compact plastic case and membrane 'keyboard' the ZX80 was waterproof, so using the computer and drinking beer at the same time was also a possibility provided by Sinclair.
	computermuseum.50megs.com /brands/zx80.htm (697 words)

	Sinclair ZX80 computer
		British company Sinclair released their ZX80 computer in 1980 for $199.95.
		It is considered to be the world's first computer for under $200, at least that's what Sinclair Research Ltd stated in all of their ads.
		Also available as a kit, the ZX80 was an amazing product, a real useable computer for only $200.00.
	www.oldcomputers.net /zx80.html (317 words)

	RWAP Software (Supporters of the Sinclair QL, Spectrum, ZX81, ZX80 and Cambridge Z88). (Site not responding. Last check: 2007-10-13)
		The Sinclair ZX80 was one of the first real home computers - it was supplied in kit form only to home electronics enthusiasts and was fairly easy to build up into a fully working computer, complete with built in BASIC interpreter, Z80 processor and a massive 1K RAM (random access memory).
		The Sinclair ZX80 was an all-white computer, although both a white and a fl PSU were released for it (both bear the markings Sinclair ZX80).
		If you are looking for information on the ZX80, including emulators and downloads, a good place to start would be the ZX81 webring, although you may also want to leave a message on our Wanted Page.
	www.rwapsoftware.co.uk /zx802.html (484 words)

	TheWisp.com museum : Sinclair ZX80
		All the hardware functions of the ZX80 were driven directly from the Z80 CPU.
		As soon as the user started typing, or a program was executing, the screen went blank as the CPU would be driving the display only when the computer was 'idle'.
		ZX80 programs could be saved to and loaded from a cassette player connected to 'Mic' and 'Ear' sockets on the computer.
	homepage.ntlworld.com /rp_gamble/museum/zx80.html (290 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		The ZX80 was an immediate success; ten orders were placed at the exhibition in the first five minutes.
		He sold the ZX80 and later the ZX81 in the States from that office by mail order until early 1982.\par Sinclair Research expanded rapidly; by September 1980, over 20,000 ZX80s had been sold.
		Sinclair also offered an add-on ROM to convert the ZX80 to the ZX81.\par Now that he had an improved machine and the promise of a printer, Sinclair decided to fight back at the government's scheme by offering his own half-price deal.
	robodreams.com /week5-6.rtf (10592 words)

	Beach Queen II ZX80 - A beach cleaning machine with smaller beaches in mind. Extremely efficient at cleaning beaches ... (Site not responding. Last check: 2007-10-13)
		The ZX80 is a smaller and more economical version of the BQII - perfect for smaller beaches and communities that do not require the maximum cleaning ability per hour of the Beach Queen® II.
		The ZX80 is hands down one of the most quiet beach cleaning machines in the world.
		All Beach Queen® II ZX80 beach cleaning machines are guaranteed against failure due to defective design, workmanship, or materials for a period of one year or 2,000 hours from date of first use.
	www.beachclean.com /beachzx80.htm (670 words)

	The Number Crunchers - Die Geschichte der Heimcomputer
		Like the ZX80, its predecessor, the ZX81 will be available by mail-order and, by the time you read this, deliveries should be coming through.
		For the benefit of those unfamiliar with the ZX80, it was the first ready-built computer to break the psychological 100 price barrier.
		The main limitations of the ZX80 were the fact that it could not handle floating point numbers or cassette files.
	www.8bit-museum.de /docs/sinclair6r7.htm (3535 words)

	The Home Micros Decade 1980-1990
		In short, the ZX80, Sinclair's response to the success of the MK14, was born of commercial necessity; that the machine spawned a range of home computers that revolutionized the consumer electronics industry must be regarded as the triumph of fortune over intent.
		As a consequence, many ZX80 users who progressed to bigger and better machines were amazed to discover that a flickering display was a characteristic of the machine and not a fact of computing life.
		Although the ZX80 reveals no evidence of technical innovation on the part of Sinclair or his R& D department, the machine's success is a testament to the company's remarkable marketing achievement.
	website.lineone.net /~catson/zx80m.html (5601 words)

	another ZX80 archive
		However it was the ZX80 from his new company Sinclair Research Ltd that was to start a revolution in home computing in the UK when it was released at the end of January 1980.
		The ZX80 had a 3.25Hz Z80A microprocessor (supplied by NEC), a 4K rom containing BASIC and 1K of ram (expandable to 16K).
		The UK ZX80 was mainly sold via mail order and was supplied inside two polystyrene halves (not marked sinclair on the top half) in a brown cardboard box.
	www.chaotic.fsnet.co.uk /zx80 (1188 words)

	[No title] (Site not responding. Last check: 2007-10-13)
		The ZX80 was in a white moulded plastic, and could be bought in either kit form £79.95 or pre-built and ready to run for £99.95.
		It was brought to the attention of many who saw it as the future and something educational to buy for their children, thanks to advertising in major national newspapers.
		Then in 1981 Sinclair launched their improved ZX81, this was the machine I first got into programming with, It was launched in March in a blaze of TV and media publicity.
	www.retrospec-ni.me.uk /retrospecial_m.htm (658 words)

	SINCLAIR ZX80
		Il Sinclair ZX80 è un nanocomputer costruito nel 1980 da Clive Sinclair, basato sul microprocessore Zilog Z80A con clock a 3.25MHz.
		La RAM di sistema era di 1KByte, comprendeva il sistema operativo e lo spazio utente.
		Il Sinclair ZX80 fu il capostipite di una nuova e più potente serie di nanocomputer, usati prevalentemente per i giochi.
	www.24pm-affiliation.com /encyclopedia/S/Sinclair_ZX80 (231 words)

	SINCLAIR ZX80 (Site not responding. Last check: 2007-10-13)
		Der Sinclair ZX80 war ein Personal Computer der Firma Sinclair.
		Es existierte sogar ein Umrüstsatz, mit dem man den ZX80 in einen fast vollwertigen ZX81 umwandeln konnte (kein Slow-Mode).
		Das Gehäuse des ZX80 war weiß und etwas klobiger als das des ZX81, das schwarz war.
	www.toonorama.com /encyclopedia/S/Sinclair_ZX80 (93 words)

	SINCLAIR ZX80
		The ZX80 is amazingly light, twelve ounces in fact, and easily held in one hand.
		The software of the ZX80 comprises the BASIC interpreter, the Editor and whatever it is that does the rest of the work (Operating System seems too grand a title).
		The ZX80 BASIC has been well thought-out and, while it lacks some of the elegance and sophistication of the bigger machines, it's a very usable version of the language.
	www.presshere.com /html/pw8004.htm (3699 words)

	[No title]
		Horizontal Blanking In both ZX80 and ZX81, the CPU cannot be used to execute user programs during horizontal blanking periods - it is required to execute delays to be kept synchronized to video hardware.
		ZX80 files are copies of the memory area 4000h up to E_LINE-1, the filename is obviously not included as real ZX80 files do not have names.
		ZX80 Data Field The data field is loaded to address 4000h, and it contains the whole system area, the basic program, and VARS area.
	www.work.de /nocash/zxdocs.txt (9761 words)

	Sinclair User 46 - The Sinclair Story
		The ZX80 - the world's smallest and cheapest computer - was launched at an exhibition in Wembley at the end of January 1980.
		A ZX80 Users' Club had been formed before the ZX81 was launched; SYNC Magazine appeared in January 1981 to cater for ZX81 users; Learning Basic with your Sinclair ZX80 by Robin Norman, published by Newnes in early 1981, was one of the first books to develop Basic programming techniques on the home computer.
		It was after the launch of the Spectrum that computer fever really took off; children were being introduced to computers at school and the very cheapness of the ZX80 and 81 meant that parents were prepared to buy them to give their children 'a good start in life'.
	www.sincuser.f9.co.uk /046/sstory.htm (2641 words)

	Sinclair ZX80 - netlexikon
		Der Sinclair ZX80 war ein Heimcomputer der Firma Sinclair.
		Die Ãhnlichkeit war aber so groÃ, dass der ZX80 mit Hilfe eines UmrÃ¼stsatzes auf einen ZX81 -Ã¤hnlichen Standard bringen konnte.
		Die Z80 - CPU war mit 1 MHz getaktet, was dem Stand der Technik entsprach.
	www.net-lexikon.de /Sinclair-ZX80.html (127 words)

	RWAP Services (Supporters of the Sinclair QL, Spectrum, ZX81, ZX80 and Cambridge Z88). (Site not responding. Last check: 2007-10-13)
		The Sinclair ZX81 was the first popular home computer - it followed on the heels of the white Sinclair ZX80 home computer (which was supplied as a kit) and came either as a kit or ready-assembled.
		However, when Sinclair released its own add-on thermal printer for the Sinclair ZX80, ZX81 and Spectrum computers, it was found that this power supply was insufficient and the larger 1.2A PSU was released for use with the ZX81 (this power supply unit appears half-way along the cable).
		If you are looking for information on the ZX81, including emulators and downloads, a good place to start would be the ZX81 webring, although you may also want to leave a message on our Wanted Page.
	www.rwapsoftware.co.uk /zx812.html (467 words)

	The ZX80
		The ZX80, launched in 1980, is widely regarded as having founded the British home computer market.
		It's less well known now than the later Sinclair machines, probably because it sold "only" around 70,000, as against millions of ZX81s and Spectrums.
		Nonetheless, the ZX80 marked a key point in the development of Sinclair and the British home computer market, and is now a rare collector's item.
	spectrum-zx.chat.ru /zx80.htm (171 words)

	Pictures of Sinclair ZX80 + accessories (Site not responding. Last check: 2007-10-13)
		the ZX80 in 1980, it was the first mass-produced computer at an affordable
		ZX80, and extra 16 Kbyte RAM pack which came later.
		16Kbyte RAM pack for the ZX80, also works on the ZX81.
	www.m.nu /datorer/zx80-pic.html (92 words)

	Assembly Listing of the Operating System of the Sinclair ZX80.
		This is not the original text file, which was ; written by John Grant in 1979, but a file that ; performs a similar function in that it assembles ; a 4K ROM file that may be used in ZX80 emulators.
		This requires some understanding of ; how the video hardware interacts with the system and part of the process ; is to present to the Z80 chip a phantom display file in the upper ; unpopulated 32K of memory.
		JR L0A4C ; forward to S-LOOP to balance and exit ; --- ; the ZX80 juggles with expression components using just the machine stack ; pushing first the value and then the priority/operator beneath.
	www.wearmouth.demon.co.uk /zx80.htm (13344 words)

	Sinclair ZX81 kits and parts
		Sir Clive (known as 'Uncle Clive' to some!) is one of the UK's great innovators, having created (amongst other things) the Sinclair of Cambridge MK14 microcomputer, the success of which lead to Sinclair Research and the ZX80 in 1980, available in kit form by mail order from popular electronics hobbyist magazines.
		The success of the ZX80 lead Sinclair to create the ZX81 in 1981 with a larger memory and improved mathematical functions.
		It was extremely popular due to its low cost and relative power, and hence well supported with software and peripherals by both Sinclair and other companies.
	www.zx81kit.co.uk (310 words)

	Specifications
		The ZX80 and ZX81 hardware is mostly the same, the same I/O address are used, RAM is located at 4000h and up, and mirrored as VRAM at C000h and up.
		The ZX80 points to a HALT opcode in the D_FILE area, which is repeatedly executed to display blank upper and lower screen borders (much like empty lines in a collapsed screen).
		ZX80 files do not have filenames, and video memory is not included in the file.
	nocash.emubase.de /zxdocs.htm (13016 words)

	Sinclair ZX-80
		Der ZX80 war der wohl konsequenteste Homecomputer, den man sich 1980 ausdenken konnte: Ein Fernseher als Monitor, ein Kassettenrekorder als Massenspeicher, eine Folientastatur zur Eingabe, der kleinste ROM-Speicher (4 KB) in dem ein primitiver Basic-Interpreter gerade so hineinpasst und ein RAM das gerade mal für ganz simple Programme ausreicht.
		Wirklich nützlich war der ZX80 eigentlich nicht, seine Fähigkeiten reichten maximal für Spielereien.
		Der ZX80 wurde nach nur einem Jahr durch den noch etwas billiger zu produzierenden ZX81 abgelöst. Da die Begeisterung für das Computerhobby damals erst langsam aufkam, wurden vom ZX80 vergleichsweise wenige Exemplare verkauft.
	www.homecomputermuseum.de /comp/70_de.htm (459 words)

	ZX80 hardware page
		The later ZX81 is very similar to the ZX80 except a lot of the ICs in the 80 has been merged into one chip.
		ALL parts for the ZX80 are available from most of the larger electronic companies.
		All digital connections are made using wire-wrap wire as this is a lot thinner than conventional hook-up wire so the data and address bundles can be tied to form a neat layout.
	home.micros.users.btopenworld.com /zx80/zx80.html (1407 words)

	another ZX80 archive
		However it was the ZX80 from his new company Sinclair Research Ltd that was to start a revolution in home computing when it was released at the end of January 1980.
		Apart from its ability to use a standard tv for display and save/load games using a normal tape recorder its main selling point was its relative cheapness.
		There are a few variations of ZX80 which collectors should be aware.
	home.freeuk.com /joro/zx80/zx80.html (747 words)

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