--- title: Amstrad CPC 664 categories: - Computers types: - Home Computer origins: - United Kingdom years: - '1985' cpus: - Zilog Z80 params: name: CPC 664 image: /media/museum/photos/cpc664.jpg company: /companies/amstrad company_name: Amstrad specs: - label: NAME value: CPC 664 - label: MANUFACTURER value: Amstrad - label: TYPE value: Home Computer - label: ORIGIN value: United Kingdom - label: YEAR value: Spring 1985 - label: END OF PRODUCTION value: End of 85 ! - label: BUILT IN LANGUAGE value: Locomotive Basic v1.1 - label: KEYBOARD value: |- QWERTY mechanical keyboard\ Numeric keypad and edit block with arrow keys - label: CPU value: Zilog Z80 - label: SPEED value: 4 MHz - label: RAM value: 64 kb - 42 kb left for the user - label: VRAM value: 16 kb - label: ROM value: 48 kb (32 kb for the CPC 664 ROM + 16 kb for the AMSDOS ROM) - label: TEXT MODES value: |- 20 x 25 with 16 colors\ 40 x 25 with 4 colors\ 80 x 25 with 2 colors - label: GRAPHIC MODES value: |- 160 x 200 with 16 colors\ 320 x 200 with 4 colors\ 640 x 200 with 2 colors - label: COLORS value: '27' - label: SOUND value: |- 3 channels, 7 octaves\ +1 noise channel - label: I/O PORTS value: |- Printer port\ Bus port\ 1 Joystick plug (Atari standard)\ Floppy Disc Port\ DIN plug for Amstrad monitor\ Headphone / Sound stereo jack output\ DIN plug for external tape recorder - label: BUILT IN MEDIA value: '3' - label: OS value: AMSDOS or CP/M - label: POWER SUPPLY value: 5v DC (powered by an Amstrad monitor) - label: PRICE value: |- Monochrome - 684 (august 85)\ Color - 913 (august 85) tabs: - photos - adverts - hardware - software - emulators - links - docs - videos photos: - title: CPC-664 subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_r-side_2.jpg - title: FRENCH MODEL subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_r-side_4.jpg - title: FRONT subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_front_1.jpg - title: 'FRONT #2' subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_front_2.jpg - title: LEFT SIDE subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_l-side_1.jpg - title: 'LEFT SIDE #2' subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_l-side_2.jpg - title: RIGHT SIDE subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_r-side_1.jpg - title: 'RIGHT SIDE #2' subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_r-side_3.jpg - title: BOTTOM subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_bottom_1.jpg - title: TOP subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_top_1.jpg - title: REAR subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_rear_2.jpg - title: INTEGRATED DISK DRIVE subtitle: '' text: 3" disk drive, 169 KB per side image: /media/museum/photos/amstrad_664_disk.jpg - title: FRENCH MODEL - KEYBOARD subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_zoom_1.jpg - title: FRENCH MODEL - DISK DRIVE subtitle: '' text: On the French model, LDD (Lecteur De Disquette) is written instead of FDD (Floppy Disk Drive) for English models. The colour chart and keyboard map are also in French. image: /media/museum/photos/amstrad_cpc664-f_zoom_2.jpg - title: FRENCH MODEL - DISK DRIVE ZOOM subtitle: '' text: '' image: /media/museum/photos/amstrad_cpc664-f_zoom_3.jpg - title: INSIDE subtitle: '' text: Let's have a look inside the beast... image: /media/museum/photos/amstrad_664_inside.jpg adverts: - title: FRENCH ADVERT (JULY 1985) subtitle: '' text: Page 1 image: /media/museum/pubs/amstrad_cpc664_pub_haute-performabce-p1.jpg - title: FRENCH ADVERT (JULY 1985) subtitle: '' text: |- Page 2 "The domestic computer, business class" image: /media/museum/pubs/amstrad_cpc664_pub_haute-performabce-p2.jpg hardware: - title: DDI-1 subtitle: Amstrad disk drive text: |- After a long wait for the first purchasers of CPC-464, the diskette drive was available one year after its announcement. It connected to the expansion connector of the computer and used a 3" Hitachi diskette drive. This choice may appear strange in the light of the growing success of the Sony 3,5" standard, but would prove highly reliable in use. The Amstrad operating system (AMSDOS) is stored in a 16 KB ROM. Two operating systems and one language were delivered with this unit :\ \- **AmsDOS** allowed Amstrad Basic to be used via additional file-management commands, but was not very practical to use.\ \- **CP/M 2.2** from Digital Research which gave access to an immense professional software library but required two floppy drives in order to function well.\ \- **Dr. LOGO** A popular language, especially in educational circles. It took advantage of the sound and graphic capabilities of the Amstrad. In spite of a prohibitive price due to a long period of (organized?) scarcity, Amstrad’s 3" floppy disks became the primary medium for numerous games and other programs and contributed to the big commercial success of the machine in Europe, until the announcement of the <$112$>CPC 664, the first model with an integrated disk drive. DDI-1 with interface for CPC-464 or CPC-664 : 1990fr (March 86)\ FD-1, second drive for CPC-464,664 and 6128 : 1590fr (March 86) image: /media/museum/hardware/fd_ddi_1.jpg - title: INSIDE DDI-1 CASE subtitle: '' text: |- **(1)** Read/Write magnetic head\ **(2)** As in any disk drive, 2 engines are required : the biggest one to spin the magnetic disc, and the second one (at the top) to move the read/write head\ **(3)** The DDI case contains its own power supply. The PSU is shown here surrounded by a thick metallic plate to prevent magnetic fields from damaging the disks\ **(4)** The power supply regulation part is located under the disk drive\ **(5)** Disk introduction slot and eject button. Disk storage capacity is of 169 Kb. for system floppy disks (which include an operating system), or 178 Kb. for data disks. image: /media/museum/hardware/fd_eclate.jpg - title: AMX MOUSE subtitle: '' text: |- For drawing and moving the cursor Could be used with the CPC-464,664 and 6128\ Cost 105 Euros in March 86. image: /media/museum/hardware/amstrad_amx_mouse.jpg - title: AMSTRAD LIGHT PEN subtitle: '' text: |- For all models with a colour monitor\ Sold with a drawing program: 44 Euros (March 86) image: /media/museum/hardware/amstrad_light_pen.jpg - title: DMP 2000 subtitle: Amstrad printer text: |- 90 Fonts, 20-100 characters /s\ 350 Euros (March 86) image: /media/museum/hardware/amstrad_dmp2000.jpg - title: AMSTRAD JOYSTICK subtitle: '' text: |- Classic joystick sold by Amstrad.\ It includes another joystick plug to add a second joystick. Cost 23 Euros in March 86 image: /media/museum/hardware/amstrad_joystick.jpg - title: MP1 / MP2 ADAPTOR subtitle: Amstrad Scart adaptors text: |- Enabled the use of an Amstrad with a Peritel (scart) TV. MP1 for CPC-464: 60 Euros (March 86)\ MP2 for CPC-664 and 6128: 75 Euros (March 86) image: /media/museum/hardware/amstrad_scart_adaptator.jpg - title: AMSTRAD RS-232C INTERFACE subtitle: '' text: |- Self-explanatory I think... For the CPC-464, 664 and 6128\ 90 Euros in March 86 image: /media/museum/hardware/amstrad_cpc464_rs232.jpg - title: VOCAL SYNTHESIZER subtitle: '' text: |- And your CPC talks! For CPC-464, 664 and 6128\ 60 Euros (March 86) image: /media/museum/hardware/amstrad_vocal_synth.jpg - title: TECHNI-MUSIQUE MUSICAL SYNTHESIZER subtitle: '' text: |- Musical synthesizer with 12 stereo channels\ A 4-octave piano keyboard was optional\ Application delivered on disk Price : 150 Euros (France, October 1987) image: /media/museum/hardware/amstrad_musical_synth.jpg screenshots: - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_1942-title.gif - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_1942.gif - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_1943-title.gif - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_addams-family_title.gif - title: SCREENSHOTS subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_addams-family.gif - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_airwolf.gif - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_alien-highway2_title.gif - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_alien-highway2-encounter.gif - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_apb.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_apb2.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_arabian-nights_title.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_arabian-nights.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_beyondicepalace.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_bombjack-title.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_bombjack.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_boulderdash.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_bountybob-strikesback.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_brucelee_title.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_brucelee.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_bubblebobble.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_bubblebobble2.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_catch23.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_catch23_2.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_cauldron_t.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_cauldron.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_chuckie-egg.png - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_commando_t.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_commando.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_fruityfranck.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_5axe.gif - title: LOADING SCREEN subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_mgt_t.png - title: SCREENSHOT subtitle: '' text: '' image: /media/museum/software/amstrad_cpc_ss_mgt.png emulators: - title: Arnimedes url: http://www.arnimedes.de/ platform: MS DOS text: CPC emulator for DOS - title: CaPriCe32 url: http://www.caprice32.cybercube.com/ platform: Windows text: 32 bit Amstrad CPC Emulator - title: No Cash Amstrad CPC Emulator (NO$CPC) url: http://www.work.de/nocash/cpc.htm platform: Windows text: For Windows and MS-DOS - title: WinAPE32 url: http://winape.emuunlim.com/ platform: Windows text: Fast, accurate CPC/+ emulation - title: Arnold url: http://www.bannister.org/software/arnold.htm platform: Apple text: Arnold/MacOS is an Amstrad CPC/CPC+/KC Compact Emulator for the Macintosh. - title: CPC ++ url: http://bricerive.free.fr/cpc platform: Apple text: Emulator for MAC OS - title: CPC ++ url: http://bricerive.free.fr/cpc platform: Unix / Linux text: Emulator for Linux and SunOS. - title: XCPC url: http://XCPC.EMUUNLIM.COM platform: Unix / Linux text: CPC emulator for any UNIX platform with X-Window - title: Ami-CPC url: http://www.chez.com/deplanque/ platform: Amiga OS text: '' - title: C-ONE url: http://c64upgra.de/c-one/ platform: Other platform text: Hardware emulator (re-configurable computer) - title: DreamCPC url: http://www.consolevision.com/dreamcast/emus/amstrad/ platform: Other platform text: CPC emulator for Dreamcast - title: PocketCaprice url: http://www.pocketcult.com platform: Other platform text: Pocket PC/PDA emulator for Windows Mobile 2003 or Windows Mobile 5 operating system - title: Arnold (amstad 128k v3 emulator) url: http://arnold.emuunlim.com/ platform: Multiplatform text: Emulates CPC 464, 644, 6128, 464+, 6128+, and KC Compact. - title: CPCE url: http://cpce.emuunlim.com/ platform: Multiplatform text: Amstrad CPC emulator for DOS, DPMI and WIN32 - title: MESS url: http://www.mess.org/ platform: Multiplatform text: MESS emulates a lot of Amstrad computers (available for many OS) ! links: - title: Amstrad Computer Manuals url: http://www.instruction-manuals.co.uk/category/computer/amstrad.htm text: '' - title: Amstrad CPC 464 664 6128 Basic programming tutorial and games. The Basic Idea url: http://www.sean.co.uk/books/amstrad/index.shtm text: '' - title: Amstrad.cpc.free.fr url: http://amstrad.cpc.free.fr/ text: Excellent site full of info - title: Amstrad.DK url: http://www.amstrad.dk/ text: 464, 664, 6128 emulation, games and demos. Nice site. - title: Amstrad's Home Page url: http://web.ukonline.co.uk/cliff.lawson/index.htm text: '' - title: CPC/IP The TCP/IP Stack for the Amstrad CPCs url: http://www.nenie.org/cpcip/ text: '' - title: CPCWIKI url: http://www.cpcwiki.eu text: The biggest Amstrad CPC site and community - title: CPCwiki url: http://www.cpcwiki.com/index.php/Main_Page text: This site hopes to evolve into an encyclopaedia on all things Amstrad CPC related. - title: DDDS Ltd Home Page url: http://www.diskdoctor.co.uk/ text: '' - title: FutureOS - THE operating system for the CPC url: http://www.FutureOS.de text: FutureOS is a very fast OS for Amstrad CPC 6128 and 6128+. - title: Generic and Amstrad CPC based Programs written in Turbo Pascal 3 url: http://turpas3.angelfire.com/ text: Turbo Pascal programs written on a CPC. - title: Good Old Games url: http://speccy.altervista.org/ text: Many games with screenshot comparisons, download and magazines - title: Les Sucres en Morceaux url: http://scampin.chez-alice.fr/cpc/index.html text: Demomaking and gfx - title: Phenix Informatique url: http://phenixinformatique.free.fr/ text: History, games, links, emulators, contacts (French) - title: SymbOS Amstrad CPC Multitasking Operating System url: http://www.symbos.de/ text: A multitasking OS for the CPC 6128 with a Windows-like GUI - title: The Unofficial Amstrad WWW Resource url: http://andercheran.aiind.upv.es/~amstrad/ text: collection of documentations dedicated to the Amstrad CPC (CPC464, CPC664 and CPC6128), Amstrad Plus (464+,6128+ and GX4000 console), and VEB Mikroelectronic KC Compact - title: Tricky's Amstrad CPC page url: http://www.trickynz.com/Amstrad%20CPC.html text: Old mags and Amsoft catalogues for download - title: Web Wiz CAPTCHA url: http://www.webwizcaptcha.com text: '' docs: - title: AMSTRAD CPC 664 - USER INSTRUCTIONS url: http://www.amstradeus.com/ cover: /media/museum/docs/couvs/doc_cpc664_user-insctructions.jpg text: |- [**AMSTRAD CPC 664 - USER INSTRUCTIONS**](http://www.amstradeus.com/)written by Amstrad  compiled/archived by Amstradeus\  type of document : PDF\  size : 7,3 MB\  source : [www.amstradeus.com](http://www.amstradeus.com/) - title: AMSTRAD CPC FIRMWARE MANUAL url: http://www.cantrell.org.uk/david/tech/cpc/cpc-firmware/ cover: /media/museum/docs/couvs/amstrad_cpc_firmware-guide.jpg text: |- [**AMSTRAD CPC FIRMWARE MANUAL**](http://www.cantrell.org.uk/david/tech/cpc/cpc-firmware/)written by Bob Taylor and Thomas Defoe  compiled/archived by David Cantrell / John Kavanagh\  type of document : PDF\  source : [Dave's Free Press](http://www.cantrell.org.uk/david/) - title: TEACH YOURSELF AMSTRAD BASIC - A TUTORIAL GUIDE - PART 1 url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_cpc_teach-yourself-amstrad-basic_1.jpg text: |- [**TEACH YOURSELF AMSTRAD BASIC - A TUTORIAL GUIDE - PART 1**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: TEACH YOURSELF AMSTRAD BASIC - A TUTORIAL GUIDE - PART 2 url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_cpc_teach-yourself-amstrad-basic_1.jpg text: |- [**TEACH YOURSELF AMSTRAD BASIC - A TUTORIAL GUIDE - PART 2**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: DMP2000 PRINTER - MANUEL UTILISATEUR (FRENCH MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_dmp2000_manuel-utilisateur.jpg text: |- [**DMP2000 PRINTER - MANUEL UTILISATEUR (FRENCH MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: DMP2160 PRINTER - GUIDE DE L'UTILISATEUR (FRENCH MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_dmp2160_manuel-utilisateur.jpg text: |- [**DMP2160 PRINTER - GUIDE DE L'UTILISATEUR (FRENCH MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: AMSTRAD DDI-1 DISK DRIVE - MANUEL DE L'UTILISATEUR (FRENCH MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_ddi-1_user-manual.jpg text: |- [**AMSTRAD DDI-1 DISK DRIVE - MANUEL DE L'UTILISATEUR (FRENCH MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: AMSTRAD MP2F PERITEL ADAPTER - MANUEL UTILISATEUR (FRENCH MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_mp2f.jpg text: |- [**AMSTRAD MP2F PERITEL ADAPTER - MANUEL UTILISATEUR (FRENCH MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: AMX MOUSE - GUIDE DE L'UTILISATEUR (USER MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_amx-mouse.jpg text: |- [**AMX MOUSE - GUIDE DE L'UTILISATEUR (USER MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Cygnet Computer Consultants Limited  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: AMSTRAD LP-1 LIGHT PEN - INSTRUCTIONS POUR L'UTILISATEUR (FRENCH MANUAL) url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_lp1_lightpen.jpg text: |- [**AMSTRAD LP-1 LIGHT PEN - INSTRUCTIONS POUR L'UTILISATEUR (FRENCH MANUAL)**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Amstrad  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) - title: MARK 2 LIGHT PEN - USER MANUAL url: http://amstrad.cpc.free.fr/article.php?sid=23 cover: /media/museum/docs/couvs/amstrad_mark2-light-pen.jpg text: |- [**MARK 2 LIGHT PEN - USER MANUAL**](http://amstrad.cpc.free.fr/article.php?sid=23)written by Electric Studio Products  compiled/archived by Charles Da Silva\  type of document : PDF\  source : [Amstrad.CPC](http://amstrad.cpc.free.fr/) videos: - title: Amstrad CPC - French commercial url: http://video.google.com/googleplayer.swf?docId=1649912029980987973&hl=fr text: 'Length: 29 s' comments: - author: commodore 64 date: Thursday 9th September 2010 text: yeah, it came a bit late for me as i had already got my hands on what was the best ca 1983, the mighty c64. Probably would have gotten the amstrad if it had come out earlier. Very very popular machine, it became. - author: David (Earth) date: Thursday 5th April 2007 text: |- I have two of these; one has been converted to a 6128 with a chip swap and memory pack. The membrane keyboards were immensely troublesome - I got fed up of dismantling and cleaning them.\ Box-loads of games and apps. Have an original copy of the complete op code.\ Also have a refurbished 464 and a modulator.\ The graphics gives one a pounding headache! Would like to upgrade. Amstrad was destroyed by the Yanks, WD & co., who were extremely worried about cheap Asian imports under-cutting their home market - now look where we are!! - author: Andrew Bolton (London) date: Friday 7th March 2003 text: |- This was the first ‘serious’ computer I owned – serious because it could run CP/M and therefore I could write useful software in Turbo Pascal and dBase II, and It also ran Wordstar. I don’t think it fair to call the monitor ‘mediocre’ – remember everyone else, with Spectrums, C64’s and so on, plugged their machine into the TV, and the Amstrad monitor was certainly better than that. I had the 12” green screen which was perfectly good enough for working at. I was also rather glad I bought it before it was replaced with the 6128, which had a pretty horrid keyboard - the 664 had a really nice keyboard!\ One problem though was that because the screen was bitmapped it ate 16K out of the 64K memory, leaving an unusually small TPA for CP/M, of around 45K (I can’t remember exactly, but the 42K cited on the 6128 page doesn’t sound right – but perhaps my memory is faulty). Most CP/M machines had character mapped displays which only used about 2K. Eventually I bought a 64 Ram expansion and got a copy of CP/M3 (aka CP/M +) (as used on the 6128). This expanded the TPA to 61K – and I added an external 5.25” drive which held something around 880K – a vast amount I never thought I’d fill… related: - /museum/amstrad-464-6128-plus - /museum/amstrad-cpc-464 - /museum/amstrad-cpc-5512 - /museum/amstrad-cpc-6128 - /museum/schneider-germany-cpc-464 oc_id: 112 source: url: https://web.archive.org/web/20230603022153/http://www.old-computers.com/museum/computer.asp?c=112 date: '2023-06-03' --- The Amstrad CPC 664 was sold for only one year. Successor to the Amstrad CPC 464, it was quickly replaced by the [Amstrad CPC 6128](/museum/amstrad-cpc-6128/). It was sold with a monochrome green or colour monitor and a built-in floppy disk drive. The floppy disk format was the Hitachi 3 inch, an uncommon format already used on the [Tatung Einstein](/museum/tatung-einstein-tc-01/) and the [Oric Atmos](/museum/oric-atmos/). Like the [CPC 464](/museum/amstrad-cpc-464/), its price was very low, which explains why about 10,000 units were sold in less than a year. The Locomotive Basic interpreter was the same as the CPC-464, but had some extra commands like **FILL** to fill a graphics area, **FRAME** to produce smoother graphics, and **MASK** to draw a series of dots. The editor was also slightly improved. The 664 was delivered with the AMSDOS and CP/M 2.2 operating systems. The **LOGO** language was supplied with the CP/M disc. We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.