MSX -  Philips VG 8235
msx_nms8235

Introduction

The Philips VG-8235 was an MSX2 computer produced in 1987 and was a successor for the VG 8230. Like the 8230, the keyboard and computer are housed in one single case, but the keyboard can be angled and locked at that angle using a slider on the keyboard. This allowed the user to position the keyboard to their own ergonomic needs. This machine came with more memory than the 8230, 128KByte of RAM was provided.

Philips decided to rebrand their computers with NMS, New Media Systems. The VG-8235 is not labeled NMS, but it does have the New Media Systems and the puzzle piece logo printed on the case.

The machine has 128KByte of RAM, and 128KByte of VRAM, which totals the 256K that is printed on the case. The computer was manufactured by NEC and has the following variants:

  • VG-8235/00: QWERTY keyboard, Dutch and Belgian markets
  • VG-8235/02: QWERTZ keyboard, German market
  • VG-8235/16: QWERTY keyboard with ñ key, Spanish market
  • VG-8235/19: AWERTY keyboard, French Market

There was an update to the MSX Basic system that lead to more variants, the machines below are produced with MSX-BASIC v2.1 in ROM, vs the 2.0 version in the first models:

  • VG-8235/20: QWERTY keyboard, Dutch and Belgian markets
  • VG-8235/22: QWERTY keyboard, German market
  • VG-8235/36: QWERTY keyboard with ñ key, Spanish market
  • VG-8235/39: AWERTY keyboard, French market

The MSX2 Standard

The MSX2 Standard was introduced as successor to the MSX standard. The biggest improvement on the standard were the video capabilities of the system. Where the MSX-1 was quite capable with 16 colors and hardware sprites, it had some limitations. The graphics mode was pattern based, which meant that pixels were grouped by the 8, and each 8 pixels could only have one foreground and one background color. For games and pictures this meant that there was a color spill effect, colors bleeding over in unwanted areas.

The MSX2 introduced a new Video Display Processor, the V9938. This chip had the capacity to display 256 color simultanously, or have graphics modes with 16 colors out of a 512 color palette. It had true bitmapped graphics, that offered multiple in-memory pages for double buffering or vertical scrolling. The sprite system now supported multi-color sprites, and up to 8 sprites per scan-line. The Video RAM was defined to be at least 64KByte, but most systems came with 128KByte which was the maximum the V9938 supported.

The V9938 made it possible to create some great games. The most famous is the very first version of Konami's excellent game Metal Gear.

MSX I/O Ports

The follwing sections details the Standard MSX I/O ports that are available on every MSX.

    MSX Cassette Pin Layout

  • The MSX Standard calls for all MSX computers to have a standard data-cassette port. This port transports the audio-in/out signals to and from the datarecorder and the computer has a relay-switch on board to turn the recorder on and off.

  • MSX Cartridge Connector

  • The MSX Cartridge system uses a 50-pin flat-edge connector to connect to the systems expansion bus. The cartridge slot maps into one of the main- or sub-slots.

  • MSX Joystick Connector

By Philips CPU Zilog Z80A @3.58MHz Memory 128K RAM, 128K VRAM Sound 3 voice channels + white noise Sprites 16 color, 16x16, 8/scanline, 64 total Display 512x212 16 of 512 RGB, 256x212 256 colors Display Chip Yamaha V9938 VDP Sound Chip General Instruments AY-3-8910 Programmable Sound Generator CPU Class Z80 Developed by Philips
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Philips VG  8235
 
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Books & Publications
Books related to the MSX Standard of microcomputers
Magazines & Serials
MSX Computer Club Magazine - MSX Blad van MSX Club Belgie/Nederland
MCM
MSX Computer Magazine - Maandblad voor MSX-Gebruikers
MSX Magazine from Brazil, later included Amiga as well
MSX Fan, Japanese MSX Magazine
Magazine voor MSX gebruiker en programmeur
Het Nederlandstalige computerblad voor MSX-Bezitters
MSX Magazine, Japanese MSX Magazine
MSX Micro Magazine, Brazilian MSX magazine
MSX Mozaïk was a user group magazine started by Dirk Scheper. The magazine first appeared as a single page in the MSX-Info magazine of January 1985.
MSX World, spanish MSX Magazine
World Wide Web Links
MSX Resource Center dedicated to MSX. It has an extensive archive of MSX news, an active MSX forum, lots of information in their MSX wiki and a large section of free MSX software.
MSXVR is a computer that is hardware and software compatible with MSX computers, implemented in FPGA.
Computer fandom website for MSX