Editing MSX (section)

==System specifications==
{| class="wikitable"
|+
!
!MSX<ref>{{Cite web |title=Portar MSX Tech Doc |url=http://problemkaputt.de/portar.htm#top |url-status=live |archive-url=https://web.archive.org/web/20150102211047/http://problemkaputt.de/portar.htm#top |archive-date=January 2, 2015 |access-date=January 2, 2015 |website=problemkaputt.de}}</ref>
!MSX2
!MSX2+
!MSX TurboR
|-
|Release 
|Worldwide (1983)
|Worldwide (1985)
|Only officially in Japan (1988)<br>(available in Europe and Brazil via upgrades)
|Only Japan (1990)
|-
|Processor
|[[Zilog Z80]]A running at 3.58&nbsp;MHz
|Zilog Z80A running at 3.58&nbsp;MHz<br>(the HC-90 and HC-95 models from JVC have a 6.144&nbsp;MHz [[HD64180]] CPU, but this is not part of the standard)
|Zilog Z80-compatible running at 3.58&nbsp;MHz<br>(the MSX2+ models from Panasonic can be set to run on 5.37&nbsp;MHz by software, but this is not part of the standard)
|
* R800 running at 7.16&nbsp;MHz (instructions use about 4× less clock ticks than the Z80, so often quoted as 28.6&nbsp;MHz when comparing with the Z80)
* Zilog Z80A-compatible (embedded in the T9769C [[MSX-Engine]]) running at 3.58&nbsp;MHz for backward compatibility
|-
| rowspan="2" |[[Read-only memory|ROM]]
|32 KB
|48 KB
|64 KB
|96 KB
|-
|
* [[BIOS]] (16&nbsp;KB)
* [[MSX BASIC]] V1.0 (16&nbsp;KB)
|
* BIOS + Extended BIOS (32&nbsp;KB)
* MSX BASIC V2.0 or V2.1 (16&nbsp;KB)
* DiskROM (16&nbsp;KB) (optional, common)
* MSX-Audio BIOS (32&nbsp;KB) (optional, no machines are known with this BIOS built in)
|
* BIOS + extended BIOS (32&nbsp;KB)
* MSX BASIC V3.0 (16&nbsp;KB)
* DiskROM (16&nbsp;KB) (optional, very common)
* Kun-BASIC (16&nbsp;KB) (optional)
* Kanji ROM (optional)
|
* BIOS + Extended BIOS (48&nbsp;KB)
* [[MSX BASIC]] V4.0 (16&nbsp;KB)
* DiskROM (16&nbsp;KB)
* Kun-BASIC (16&nbsp;KB)
* Kanji ROM (256&nbsp;KB)
* Firmware (4&nbsp;MB)
|-
|[[Random-access memory|RAM]]
|8&nbsp;KB minimum, most machines provided either 32 or 64&nbsp;KB; machines with 128&nbsp;KB exist
|64&nbsp;KB minimum, commonly 128&nbsp;KB in Europe, 64&nbsp;KB on Japanese computers, machines with up to 512&nbsp;KB were made. Normally memory mapped (4&nbsp;[[Megabyte|MB]] per slot maximum, 48&nbsp;MB max total)
|Commonly 64&nbsp;KB (on Japanese computers), normally memory mapped (4&nbsp;MB per slot maximum, 48&nbsp;MB max total)
|256&nbsp;KB (FS-A1ST) or 512&nbsp;KB (FS-A1GT)
* Memory-mapped (4&nbsp;MB/slot max, 44&nbsp;MB max total)
* Additionally 16&nbsp;KB (FS-A1ST) or 32&nbsp;KB (FS-A1GT) of [[Static random-access memory|SRAM]] (battery-powered)
|-
|[[Video display controller|Video display processor]]
|[[Texas Instruments TMS9918]] family
* Video RAM: 16&nbsp;KB
* Text modes: 40×24 and 32×24
* Resolution: 256×192 or 64x48 (16 colours). In reality, there are just 15 colour tints available, because, just like the [[ZX Spectrum]] there are two codes for black. Unlike the Spectrum, however, one of the blacks is actually "[[Compositing|transparent]]", so the MSX video picture could be [[Hardware overlay|overlaid]] on another video signal, for example one from a [[video disk]].
* Sprites: 32 sprites with 8x8 or 16x16 resolution, 1 colour, max 4 per horizontal line
|[[Yamaha V9938]] (a.k.a. MSX-Video) Supports all MSX video modes
* Increased video RAM: 128&nbsp;KB (sometimes 64&nbsp;KB)
* New text mode: 80×24 or 80x26.5
* New bitmapped video modes without the [[attribute clash]] of MSX1, with modes for 4, 16 or 256 simultaneous colors
* New resolutions: 256x212p, 512x212p, 256x424i and 512x424i
* Increased number of, and more advanced sprites: 32 sprites with 8x8 or 16x16 resolution, max 8 per horizontal line. Each sprite line can have 1 or 3 different colors.
* [[Hardware acceleration]] for copy, line, fill, etc.
* [[Interlaced video|Interlacing]] to double vertical resolution
* A full-screen vertical scroll register
* Vertical and horizontal display offset register
|[[Yamaha V9958]]
* The minimal video RAM is now 128&nbsp;KB. Up to 192&nbsp;KB is supported.
* a new 256×212p or 256x424i YJK video mode with 19268 simultaneous colors
* a new 256×212p or 256x424i mixed-YJK/RGB video mode with 12499 simultaneous colors
* horizontal scroll register with either full-screen or dual-page support
|[[Yamaha V9958]] (aka MSX-Video), so the same capabilities as MSX2+
|-
|Sound chip
|[[General Instrument AY-3-8910]] (PSG)
|
* [[General Instrument AY-3-8910|Yamaha YM2149]] (PSG)
* Optional: [[Yamaha Y8950|Yamaha Y8950 (OPL1)]] (MSX-Audio)
|
* Yamaha YM2149 (PSG)
* Optional: [[Yamaha Y8950|Yamaha Y8950 (OPL1)]] (MSX-Audio)
* Optional: [[Yamaha YM2413|Yamaha YM2413 (OPLL)]] (MSX-Music)
|
* Yamaha YM2149 (PSG)
* [[Yamaha YM2413|Yamaha YM2413 (OPLL)]] (MSX-Music)
* Optional: [[Yamaha Y8950|Yamaha Y8950 (OPL1)]] (MSX-Audio)
* [[Pulse-code modulation|PCM]]
** 8-bit single channel (no DMA), 16&nbsp;kHz max using BIOS routines
** Microphone built-in
* (FS-A1GT only): MIDI in/out 
|-
|Clock chip
| (Not installed.)
| colspan="3" |Ricoh RP5C01 (or compatible)
|-
|Interfaces
|
* 1 cartridge slot (usually 2, up to 16)
* 1 or 2 General Purpose ports (aka joystick ports)
* Optional: [[parallel port|Parallel Printer port]]
| colspan="3" |
* 1 cartridge slot (usually 2, up to 16)
* 2 General Purpose ports (aka joystick ports)
* Parallel Printer port
* Optional: [[Light pen]] interface
* Optional: Video superimposer
* Optional: Video Digitizer
|-
|Media
| colspan="4" |
* Standard
** [[ROM cartridge|Cartridge]]
** [[Cassette tape]] (1200bps or 2400bps)
** [[Floppy disk]] (diskless models require a floppy controller cartridge)
** [[Mass storage]] (originally [[Hard Disk|hard disk]], later extended to [[flash drive]]s, requires a controller cartridge)
* Proprietary
** [[Bee Card (game cartridge)|Bee Card]] (requires an adapter cartridge)
** [[Quick Disk]] (requires a controller cartridge)
** [[Laserdisc]] (requires a controller cartridge and superimposer)
|}