387:. We've heard reports from several sources of a new machine from Commodore—A 64GS, if you will. This machine is reportedly driven by a GE802, a version of the 65816 microprocessor (which is a 16-bit version of the 6502 chip), and runs at 4 MHz (by comparison, the 64 runs at 1 MHz; the Amiga, at slightly over 7 MHz). It comes with 128K of RAM and is expandable to one megabyte. Fully expanded, it supports 256 colors. Maximum resolution is a stunning 640 X 400 pixels. We've also heard that it has a 64 mode so that 64 owners can purchase a much more powerful machine and still use their software library. The 64GS reportedly comes with a built-in 3 1/2-inch disk drive and will support the 1581. But, our sources say, it does not support the 1541 or the 1571 drive (uh, excuse me, please pass the bologna). All we've heard about sound in the new machine is that it's "enhanced" and features stereo output. The final tidbit is that the 64GS will retail in the $ 300-$ 350 range when it debuts in November.
851:
at 200 lines as standard, but can be doubled to 400 with interlace . The VIC-III bitplane modes take up to 64 KB of system RAM in non-interlaced or 128 KB RAM in interlaced (400 line) modes. Since the C65 is equipped with only 128 KB in its basic configuration, these modes would consume the entire RAM, and are therefore only useful in a RAM expanded system. On a basic system, it would probably have made more sense to write software which uses less demanding resolutions with fewer bitplanes—partly because this would consume less of the confined RAM space, but also because more bitplanes would demand a higher video DMA bandwidth and consequently slow down the CPU as a result.
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CSG-4567 simultaneously. This provides an effective video-DMA bandwidth of 7.2 MB/s which is the same specification as the original 16-bit
Commodore Amiga chipset (OCS/ECS). The CPU can use up to half the available bandwidth, since it can only access a single 8-bit bank at a time. In higher demanding video modes, the CPU is slowed down due to increased cycle stealing from the video controller.
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400:.'" While the next issue reported that "the latest rumor is that such a machine will never see the light of day", Fred Bowen and others at Commodore in 1990–1991 developed the Commodore 65 (C65) as a successor to the C64. In the end of 1990 the decision to create the C65 was taken. The project was cancelled by Commodore's chairman
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A new "bitplane" video mode was added to allow the displaying of true bitplane type video, with-up to eight bitplanes in 320 pixel mode and up to four in 640 pixel mode. The CSG-4567 can also time-multiplex the bitplanes to give a true four-color 1280 pixel picture. Vertical resolution is maintained
684:
The Legend on the PCB was to let others in the organization know to go to for advice on the chips. We did have an issue with that. But that wasn't the name of the chip at the time. The 4567 was always called the VIC-3. I can see why others outside of
Commodore made the connection. But again—no—we
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The bitplanes on the C65 are organized in a less straightforward manner than e.g. on the
Commodore Amiga, which organizes the bitplanes as straight rows of pixels: On the C65, the bytes within the bitplanes are organized as 25 rows of 40 or 80 stacks of 8 sequential bytes, similar to the original
841:
In addition to having all of the C64 video modes, the CSG-4567 also supports several new character attributes such as "blink" or "bold" and can display any of the new or old video modes in 80 column or 640 horizontal pixel format, as well as the older 40 column 320 pixel format . These enhanced
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The main memory of the C65 is shared between the graphics subsystem and the CPU. The memory clock runs at almost twice the speed of the C64. To further increase the bandwidth of the graphics subsystem, the memory is divided into 2× 8-bit wide banks of 64 Kbyte which can be accessed by the
989:
In contrast to previous 8-bit computers from
Commodore, the C65 has a complete DOS through which the built-in 3.5-inch floppy disk drive can be controlled. Disks used by the C65 have a storage capacity of 880 KB and the drive is compatible with
395:
added, "Our sources also report that there is a great deal of infighting at
Commodore as to whether the machine should be released. The sales staff wants to get the machine out the door, while the naysaying engineers have dubbed it 'son of
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320×200 VIC modes. Because this makes it harder to derive individual byte and pixel addresses from their position in the XY coordinate frame, the C65 provides a conversion mechanism in hardware called
Display Address Translator (DAT).
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were sold on the open market, and thus a few people actually own a
Commodore 65. Estimates as to the actual number of machines found on the open market range from 50 to 2000 units. As the C65 project was cancelled, the final
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In 2015, the Museum of
Electronic Games & Art (MEGA) announced a recreation of the Commodore 65. Also backwards compatible with the Commodore 64, the MEGA65 features Commodore 65 compatible hardware recreated in
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drive DOS. Since it can only deal with two floppy disk drives, including the internal, only one external drive may be connected to the internal floppy disk controller. Like earlier systems, up to four drives can be
1077:
On 30 September 2021, the final version of the MEGA65 with recreated C65 case, was available for pre-order. The first batch of 400 computers has sold out and been released to customers as of May 2022.
680:. Although there are names printed near the chip sockets on various revisions of the circuit board, they were not intended as names for the chips. According to former Commodore engineer Bill Gardei,
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is no longer available, and the user port missing—like the Aldi C64—the 9 volt AC line. The expansion port differs significantly from all prior C64 variants and rather resembles that of
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2186:
1503:
1264:
1577:? (davidjseibuhr journalist, reports: New Mega65 Corporation began thereafter, they periodically remanufactured pcb revised computers, prebuilt or kits) Cc=564
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994:. Since this format was uncommon for the former C64 owners, the C65 retains the serial IEC port for external Commodore disk drives. It's possible to use a
481:; available modes include 320×200×256 (8), 640×200×16 (4), 640×400×16 (4), 1280×200×4 (2), and 1280×400×4 (2) ( X×Y×color depth, i.e. number of colors (
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via a flap in the bottom of the board. The built-in floppy disk drive is connected in parallel, serial
Commodore drives can be connected via the usual
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341:, and it was meant to be backwards-compatible with the older computer, while still providing a number of advanced features close to those of the
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has eaten big holes in the market, and the life of the old warhorse computer should somehow be extended." Noting that Apple had developed the
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The C65 includes the same ports of the C64. In addition, there is a DMA port for memory expansion. The latter is attached just like on the
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In
September 2020, the pre-release developer-kit (r3) has sold out and in total 100 systems were delivered by the end of 2020.
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complex interface adapters (CIAs), a UART serial interface, and a memory mapper to allow for an addressable space of 1 MB
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842:"VIC-II" modes take up to 16 KB of system RAM. The sprite capabilities in all VIC modes are equivalent to the C64.
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https://shop.trenz-electronic.de/en/TE0765-03-S001-MEGA65-highly-advanced-C64-and-C65-compatible-8-bit-computer
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Copy (up,down,invert), Fill, Swap, Mix (boolean Minterms) Hold, Modulus (window), Interrupt, and Resume modes
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As of 10 May 2023, the second batch of 400 computers has also sold out and been released to customers.
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560:(the C64 has the relatively feature-weak BASIC 2.0, which was almost 10 years old by this time.)
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Because the Commodore 65 was only a prototype, not many units were made. If one appears on
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1412:"Introducing the MEGA65 (8-bit) computer | MEGA - Museum of Electronic Games & Art"
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1347:"Super-Rare Legendary Commodore C65 is About to be Resurrected for Retro Gaming Glory"
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The custom chips of the C65 were not meant to have names like the custom chips in the
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The C65 also contains one or two programmable logic arrays depending on the version:
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320×200×256; 640×200×16; 640×400×16; 1280×200×4; 1280×400×4; palette of 4096 colors
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Further aid to the programmer comes in the form of a bit-blitter, which supports
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CSG 4567: VIC-III graphics processor (commonly called "Bill" after Bill Gardei)
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1519:"Making a C64/C65 compatible computer: The DevKits have started shipping!"
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ELMER: PAL16L8 (C65 versions 1.1, 2A, 2B), PAL20L8 (C65 versions 3–5)
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named CSG 4567 R5, capable of producing 256 colors from a palette of
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and supports newer connectors such as HDMI, MicroSD cards and LAN.
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CSG 4510: processor (commonly called "Victor" after Victor Andrade)
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F011C: FDC (floppy disk controller, also designed by Bill Gardei)
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Power +5 V DC at 2.2 A and +12 V DC at 0.85 A
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Separate control (left / right) for volume, filter and modulation
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When Commodore International was liquidated in 1994, a number of
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Dimensions: ≈46 cm wide, 20 cm deep, 5.1 cm high
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Keyboard with 77 keys and an inverted T directional cursor block
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1703:
1436:"MEGA 65: Commodore 65 remake gets a physical release • /r/c64"
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using a RAM expansion port similar to that of the Commodore
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old-computers.com: LD-COMPUTERS.COM museum ~ Commodore C65
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Commodore 65 opened up, revealing its internal disk drive
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CSG 4151: DMAgic DMA controller (designed by Paul Lassa)
1615:
On the Edge: The Spectacular Rise and Fall of Commodore
1547:"The Commodore 64 has a Successor (and it's amazing!)"
1484:
Mega 65, Trenz - The Official seller of (2020-09-14).
1690:
toxic-waste.de: Commodore C65 Information Page by TXW
1641:
C65 page at 'The Secret Weapons of Commodore' website
416:
offering from CBM remained the triple-mode, 1–2
1601:, confirmation that both batch 1 and 2 have sold out
1387:
1361:"MEGA | MEGA - Museum of Electronic Games & Art"
1313:. collectorcomputers.com. 2013-11-16. Archived from
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1953:
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49:. Unsourced material may be challenged and removed.
1643:By Cameron Kaiser and The Commodore Knowledge Base
1382:
1380:
1009:The DOS itself is based on the Commodore PET IEEE
1461:"Making a C64/C65 compatible computer in an FPGA"
1664:(requires an Unlimited account to download ROMs)
1267:. retrocommodore.com. 2012-12-16. Archived from
624:User port: parallel 24-pin (without 9 V AC)
1668:Commodore 65: Like The C64, But It's One Louder
1180:"Secret Weapons of Commodore: The Commodore 65"
870:Block operations from 1 byte to 64 KB
381:
337:in 1990–1991. It is an improved version of the
1715:
1038:was also provided. Only the port for the C64
8:
2233:† Listed in chronological order by category
1647:FTP directory for the C65 at ftp.zimmers.net
1234:
1232:
1230:
1228:
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685:never called these chips "Victor" or "Bill".
467:clock frequency (the C64 runs at 1 MHz)
121:
1686:, German C65-site with many photos and info
1502:: CS1 maint: numeric names: authors list (
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913:. Unsourced material may be challenged and
756:. Unsourced material may be challenged and
497:Synchronizable with external video source (
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1155:"OLD-COMPUTERS.COM museum ~ Commodore C65"
120:
1652:Andre Kaesmacher's C64DX Development Site
1242:. zimmers.net. 2009-08-18. Archived from
977:Learn how and when to remove this message
820:Learn how and when to remove this message
109:Learn how and when to remove this message
1636:Hi65: a high-level Commodore 65 emulator
1684:heimcomputer.de: Commodore C65 Prototyp
1290:"commodore.ca/gallery/hardware/c65.jpg"
1089:
285:"Elmer" and "Igor" (programmable logic)
1695:cbmmuseum.kuto.de: CCOM - Commodore 65
1495:
1311:"The Story Behind 'Bill' and 'Victor'"
379:take the same tack?", then continued:
7:
2247:
1662:C65 System ROMs and Utility Software
1523:Making a C64/C65 compatible computer
1517:Gardner-stephen, Paul (2020-11-25).
911:adding citations to reliable sources
754:adding citations to reliable sources
494:Text mode with 40/80 × 25 characters
47:adding citations to reliable sources
1657:C64DX System Specification document
1157:. old-computers.com. Archived from
1058:, it may sell for around $ 20,000.
713:IGOR: PAL16L8 (C65 version 2B only)
689:The custom chips for the C65 are:
653:External fast floppy drive port —
14:
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23:
1557:from the original on 2021-12-21
543:, expandable with up to 1
456:derivative), combined with two
375:line, the magazine asked "Will
199:128 KB (8 MB maximum)
34:needs additional citations for
1589:, confirmation on batch 2 size
1100:Elko, Lance (September 1989).
293:F011B (floppy disk controller)
1:
1854:Commodore Semiconductor Group
424:(expandable), C64-compatible
1240:"C64DX System specification"
1127:Elko, Lance (October 1989).
528:sound (the C64 has one SID)
488:Supports all video modes of
1844:Commodore Business Machines
1679:8-Bit-Nirvana: Commodore 65
335:Commodore Business Machines
2334:
1292:. commodore.ca. 2011-03-29
1182:. floodgap.com. 2007-07-01
1006:, or other similar model.
631:for left and right channel
371:to extend the life of its
209:3½" DSDD floppy disk drive
157:1991 (prototype cancelled)
2231:
1820:
363:have diminished rapidly,
359:noted that "Sales of the
126:
2272:Storage devices template
2136:Commodore 64 peripherals
1754:(founder/CEO, 1958–1984)
556:Heavily improved BASIC:
432:Technical specifications
253:A Commodore 65 prototype
2262:Amiga hardware template
2187:List of cancelled games
1731:Commodore International
1617:(2005), Variant Press.
1265:"c65_html_1410c60e.gif"
309:Motherboard inscription
687:
389:
383:The latest rumor says
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837:Enhanced VIC-II modes
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600:Expansion port 50-pin
592:2× Control ports DE9M
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308:
300:
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284:
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225:VIC-III (CSG 4567 R5)
2092:Cancelled prototypes
907:improve this section
750:improve this section
558:Commodore BASIC 10.0
333:computer created at
175:Commodore BASIC 10.0
43:improve this article
2308:Commodore computers
1587:Dan's MEGA65 Digest
1201:MOS Technology, Inc
325:(also known as the
269:CSG 4510 ("Victor")
123:
2282:MOS chips template
1745:Board of directors
1465:c65gs.blogspot.com
1349:. 15 October 2021.
718:Graphics subsystem
356:Compute!'s Gazette
353:In September 1989
319:
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233:Two CSG 8580R5 SID
16:Prototype computer
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2146:Super Expander 64
2117:
2116:
2045:IBM PC compatible
1839:Amiga Corporation
1818:
1817:
1388:"MEGA65 Computer"
1133:Compute's Gazette
1106:Compute's Gazette
1018:on the IEC port.
987:
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563:One internal 3½"
277:CSG 4567 ("Bill")
247:
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205:Removable storage
140:Personal computer
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1675:, article on C65
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1129:"Editor's Notes"
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1102:"Editor's Notes"
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171:Operating system
165:50 to 2000 units
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1800:Carl Sassenrath
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1609:Further reading
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1551:www.youtube.com
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1442:. 23 April 2015
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1416:www.m-e-g-a.org
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1034:. A plug for a
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855:DAT and Blitter
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646:Composite video
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553:128 KB ROM
517:Two CSG 8580R5
445:R3 is a custom
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191:@ 3.54 MHz
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2313:Home computers
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2141:Super Expander
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1543:Nostalgia Nerd
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926:"Commodore 65"
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846:Bitplane modes
844:
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769:"Commodore 65"
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2218:Commodore USA
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2198:
2197:Simons' BASIC
2195:
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2177:Commodore DOS
2175:
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2104:Commodore 900
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2099:Commodore LCD
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1810:Robert Yannes
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1805:Shiraz Shivji
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1623:0-9738649-0-7
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1599:Trenz website
1595:
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1317:on 2015-06-10
1316:
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1291:
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1282:
1271:on 2013-06-24
1270:
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1246:on 2015-06-02
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1016:daisy-chained
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935:
931:
928: –
927:
923:
922:Find sources:
916:
912:
908:
902:
901:
897:
892:This section
890:
886:
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880:
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866:
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785:
781:
778:
774:
771: –
770:
766:
765:Find sources:
759:
755:
751:
745:
744:
740:
735:This section
733:
729:
724:
723:
717:
712:
709:
708:
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698:
695:
692:
691:
690:
686:
681:
679:
672:Chipset names
671:
669:
664:RAM expansion
663:
662:
661:
660:Bottom flap:
656:
652:
650:
647:
644:
642:
639:
637:
633:
630:
629:RCA connector
626:
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475:graphics chip
473:
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459:
455:
451:
448:
444:
440:
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431:
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427:
426:Commodore 128
423:
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162:Units shipped
160:
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113:
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91:
88:
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74:
70:
67:
63:
60: –
59:
55:
54:Find sources:
48:
44:
38:
37:
32:This article
30:
26:
21:
20:
2303:Commodore 64
2109:Commodore 65
2108:
1935:Commodore 16
1915:Commodore 64
1832:Subsidiaries
1795:Chuck Peddle
1758:Irving Gould
1752:Jack Tramiel
1594:
1582:
1570:
1559:. Retrieved
1550:
1537:
1526:. Retrieved
1522:
1512:
1489:
1479:
1468:. Retrieved
1464:
1455:
1444:. Retrieved
1439:
1430:
1419:. Retrieved
1415:
1406:
1395:. Retrieved
1391:
1368:. Retrieved
1364:
1355:
1341:
1330:
1319:. Retrieved
1315:the original
1305:
1294:. Retrieved
1284:
1273:. Retrieved
1269:the original
1259:
1248:. Retrieved
1244:the original
1195:
1184:. Retrieved
1174:
1163:. Retrieved
1159:the original
1149:
1137:. Retrieved
1132:
1122:
1110:. Retrieved
1105:
1079:
1076:
1073:
1065:
1053:
1025:
1008:
988:
973:
964:
954:
947:
940:
933:
921:
905:Please help
893:
862:
858:
849:
840:
831:
816:
807:
797:
790:
783:
776:
764:
748:Please help
736:
705:
688:
683:
675:
667:
659:
606:bus using a
595:
584:
508:controller (
406:
402:Irving Gould
392:
390:
384:
382:
354:
352:
339:Commodore 64
326:
323:Commodore 65
322:
320:
317:Start screen
242:Commodore 64
154:Discontinued
146:Release date
122:Commodore 65
105:
96:
86:
79:
72:
65:
53:
41:Please help
36:verification
33:
2213:Amiga, Inc.
1930:Educator 64
1910:MAX Machine
1790:Dave Needle
1775:Dave Haynie
1135:. p. 2
1108:. p. 4
634:RGBA video
585:Left side:
571:floppy disk
522:sound chips
504:Integrated
479:4096 colors
420:, 128
238:Predecessor
2318:Prototypes
2297:Categories
2192:Magic Desk
2167:Amiga Unix
2131:1351 mouse
1865:Computers†
1561:2020-12-02
1528:2020-11-25
1470:2015-10-06
1446:2015-10-06
1421:2015-10-06
1397:2015-10-06
1392:mega65.org
1370:2015-10-06
1321:2013-11-16
1296:2013-06-21
1275:2013-06-21
1250:2013-06-21
1186:2013-02-26
1165:2013-06-20
1084:References
1022:Interfaces
967:April 2024
937:newspapers
810:April 2024
780:newspapers
655:mini-DIN-8
627:Stereo 2×
524:producing
483:bit planes
409:prototypes
99:April 2024
69:newspapers
1785:Jay Miner
1768:Engineers
1335:C65 open
1040:datasette
1028:Amiga 500
894:does not
737:does not
649:8-pin DIN
608:6-pin DIN
549:Amiga 500
428:of 1985.
404:in 1991.
377:Commodore
331:prototype
2242:Category
2223:Escom AG
2206:See also
2155:Software
2124:hardware
2015:500 Plus
1780:Bil Herd
1555:Archived
1498:cite web
1486:"MEGA65"
1032:IEC port
641:RF video
510:bit blit
458:MOS 6526
454:MOS 6502
443:CSG 4510
373:Apple II
365:Nintendo
222:Graphics
2252:Commons
2162:AmigaOS
1139:4 March
1112:4 March
1036:genlock
951:scholar
915:removed
900:sources
794:scholar
758:removed
743:sources
604:CBM-488
499:genlock
472:VIC-III
393:Gazette
349:History
329:) is a
214:Display
189:4510 R3
83:scholar
2182:KERNAL
2004:3000UX
1940:Plus/4
1894:VIC-20
1889:CBM-II
1738:People
1621:
1440:reddit
1062:MEGA65
1050:Legacy
953:
946:
939:
932:
924:
796:
789:
782:
775:
767:
596:Back:
526:stereo
490:VIC-II
470:A new
450:65CE02
441:named
398:Plus/4
196:Memory
85:
78:
71:
64:
56:
2122:Other
2035:4000T
2009:3000T
1955:Amiga
1925:SX-64
1920:C64GS
1879:KIM-1
1872:Early
1490:trenz
992:C1581
958:JSTOR
944:books
801:JSTOR
787:books
678:Amiga
581:Ports
573:drive
463:3.54
414:8-bit
343:Amiga
327:C64DX
230:Sound
90:JSTOR
76:books
2083:PC60
2078:PC50
2073:PC40
2068:PC30
2063:PC20
2058:PC10
2030:4000
2025:1200
1998:3000
1993:CD32
1988:CDTV
1983:1500
1978:2500
1973:2000
1963:1000
1619:ISBN
1504:link
1141:2015
1114:2015
1069:FPGA
1056:eBay
1011:8250
1004:1581
1000:1571
996:1541
930:news
898:any
896:cite
773:news
741:any
739:cite
636:DE9F
620:1581
616:1571
612:1541
610:for
536:128
485:) )
437:The
391:The
369:IIGS
321:The
136:Type
62:news
2053:PC1
2020:600
1968:500
1903:C64
1884:PET
1044:C16
909:by
875:DOS
752:by
541:RAM
519:SID
506:DMA
465:MHz
452:(a
447:CSG
439:CPU
418:MHz
385:Yes
186:CSG
181:CPU
149:N/A
45:by
2299::
1553:.
1549:.
1545:.
1521:.
1500:}}
1496:{{
1488:.
1463:.
1438:.
1414:.
1390:.
1379:^
1363:.
1207:^
1131:.
1104:.
1092:^
1046:.
1002:,
998:,
568:DD
565:DS
545:MB
538:KB
422:KB
361:64
345:.
2011:)
2002:(
1723:e
1716:t
1709:v
1625:.
1564:.
1531:.
1506:)
1492:.
1473:.
1449:.
1424:.
1400:.
1373:.
1324:.
1299:.
1278:.
1253:.
1189:.
1168:.
1143:.
1116:.
980:)
974:(
969:)
965:(
955:·
948:·
941:·
934:·
917:.
903:.
823:)
817:(
812:)
808:(
798:·
791:·
784:·
777:·
760:.
746:.
618:/
614:/
512:)
501:)
112:)
106:(
101:)
97:(
87:·
80:·
73:·
66:·
39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
