Changes

Amiga

3,158 bytes added, 23 May
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[[File:Amiga500 system.jpg|thumb|right|Amiga 500]]
[[File:Amiga 600.jpg|thumb|right|Amiga 600]]
[[File:Amiga 1200.jpg|thumb|right|Amiga 1200]]
[[File:Amiga A1000.jpg|thumb|right|Amiga 1000]]
[[File:Amiga 2000.gif|thumb|right|Amiga 2000]]
[[File:Amiga-3000T-compleet.jpg|thumb|right|Amiga 3000T-040]]
[[File:Amiga CDTV.jpg|thumb|right|Amiga CDTV with all accessories]]
[[File:Amiga-CD32-wController-L-TRSP.png|thumb|right|Amiga CD32]]
 
Commodore's 16 bit home computer AMIGA is one of the best known and loved of its generation.
It was maybe the first real Multi Media home computer long before Apple's Mac.
Superficially similar to the [[Atari ST]], using the same [[Motorola 68000 ]] processor and similar memory and screen modes, but it had a lot of co-processor and sweet architecture tricks making it a powerful computer, with excellent sound hardware for its time. Many early releases were lazy conversions from the ST that did not fully exploit the above (rather like what the Amstrad suffered with Spectrum ports) but later releases largely did exploit the system. The Amiga had a revolutionary custom-built sound chip that didn't sound like any other computer of its era. What it sounds like is a Fairlight CMI synth - in other words, virtually anything you want. Waveforms are held in RAM and read out at various speeds.
The A500 was perhaps the most well known emblematic model. Famous Amiga originals released for the CPC include [[Lemmings]], [[Defender of the Crown]], [[Sim City]], [[Shadow of the Beast]] and [[Pinball Dreams]].
4.85 million units sold.
 
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==Range==
*A4000 (1992): A replacement for the A3000, has the AGA chipset and either a 68030 or 68040 processor. In 1994 came the A4000T, an A4000 in a tower case.
*CD32 (1993): Video game console marketed as the first 32-bit games console. It is essentially a keyboard-less A1200 home computer without the I/O ports, but with the addition of a CD-ROM drive and an improved version of the AGA chipset. It is the final hardware to be developed by Commodore.
 
Commodore shut down the Amiga division on April 26, 1994, and filed for bankruptcy three days later. Commodore's assets were purchased by Escom, a German PC manufacturer, who created the subsidiary company Amiga Technologies. They re-released the A1200 and A4000T, and introduced a new 68060 version of the A4000T. But Escom went bankrupt in 1996.
 
Gateway, an American PC manufacturer, eventually acquired the Amiga brand and technology in 1997. Gateway was then working on a brand new Amiga platform. However this did not materialize and in 2000, Gateway sold the Amiga brand without having released any products.
 
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==Block Diagram==
 
[[File:A500-block-diagram.jpg|800px]]
 
'''Agnus''' (Address GeNerator UnitS) is the core chip in the system, managing all access to chip RAM for the 68000 processor and other custom chips through a complex priority system. It includes the '''Blitter''', which enables fast memory data transfers without processor involvement, and the '''Copper''', a video-synchronized co-processor.
 
'''Denise''' (Display ENabler) serves as the primary video processor, handling a display of 320 or 640 pixels wide by 200 (NTSC) or 256 (PAL) pixels tall without overscan. It supports interlacing for doubled vertical resolution, though this causes flickering on older monitors. Denise uses planar bitmap graphics with one to five bitplanes for 2 to 32 colors from a 4096-color palette, plus a sixth bitplane for special modes like Halfbrite and Hold-And-Modify (HAM). It also manages eight sprites, single-pixel scrolling, "dual-playfield" mode, and processes mouse and digital joystick inputs.
 
'''Paula''' (Ports, Audio, Uart and Logic) is the audio chip, featuring four hardware-mixed 8-bit PCM sound channels and sample rates up to 28kHz. Beyond audio, Paula manages interrupts, floppy disk drive, serial port, and analog joystick inputs, along with other I/O tasks.
 
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==Links==
*{{EnWiki}}
*[https://www.amigawiki.org/ AmigaWiki]
*[https://youtu.be/GhXC_vQ5IkM The iconic "Only Amiga makes it possible" TV adpromo video] [https://youtu.be/C97Q-v-YDZE Amiga Commercials]
*[https://youtu.be/ivpWpffg6G4 All Commodore Amiga games] [https://youtu.be/fe8thkiVrpo Over 100 Amiga games in under 1 hour] [https://youtu.be/TAFUZKzQRa0 Over 100 Amiga AGA games in under 1 hour]
*[https://www.amiga500archive.com/ Amiga 500 Archive]
*[https://grandis.nu/turran/ Turran FTP]
*[https://amiga.net.au/files/Tech_Amiga/Commodore_Amiga_500_Technical_Manual.pdf Amiga 500 Service Manual]
*[http://amigadev.elowar.com/read/ADCD_2.1/Hardware_Manual_guide/node0001.html Amiga Hardware Reference Manual] [https://retro-commodore.eu/files/downloads/amigamanuals-xiik.net/Other/Amiga%20Hardware%20Reference%20Manual-ENG.pdf PDF version]
*[https://eab.abime.net/ English Amiga Board]
*[https://youtu.be/kjapiUQOi2s Commodore History - The Amiga 1000] by [[The 8-Bit Guy]]
*[https://youtu.be/ws3DJF7MbMU Part 1] [https://youtu.be/BcXcy2b1dRM Part 2] Amiga Story by [[Nostalgia Nerd]]
*[https://youtu.be/wv4_3WLgyr0 Amiga 1000] [https://youtu.be/I8D_ciE4zi0 Amiga 500] [https://youtu.be/qX7Ki0WkFxk Amiga 600] [https://youtu.be/-GGfu6_gEZs Amiga 3000] presented by [[Rodrik Studio]]
*[https://www.youtube.com/watch?v=wdUa20kUXM8&list=PLIX9fyYxV0k_NtBiHZtXs_UIccGTbnAjz PC vs Amiga] [https://youtu.be/fQU-WZZ67yM C64 SID vs Amiga Paula sound chip]
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[[Category: Non CPC Computers]]
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