Toshiba · T-series
Toshiba T3200
Original 12 MHz 286 portable with EGA-compatible graphics and a plasma panel.
Development alpha candidate: earlier guest results are historical; interactive regression of this build is pending. No commercial HDD image is created automatically. EXPERIMENTAL: BIOS 4.61 and Toshiba DOS 3.30 boot with either option of the single internal floppy drive (720 KB or 1.44 MB). The two 4 MB memory endpoints, complete floppy formats, MFM installation and BIOS-mediated display switching have been validated. PEGA2 timing, AGS capture/NMI and physical memory-card decode remain approximate.
History
The original T3200 combines a 12 MHz 80286, plasma display and two expansion slots in a transportable computer. Toshiba marketed it as a compact desktop alternative. Its brochure lists 1 MB RAM, a 40 MB hard disk, a 720 KB floppy drive and MS-DOS 3.2. TECHaccess documents later 1.44 MB drives and an upgrade to that capacity; the production date and serial boundary remain unknown. The T3200SX is a different machine, with different hardware, and is not covered here.
Hardware
- Processor
- Intel 80286, 12/6 MHz; pilot fixed at 12 MHz
- Memory
- 1 MB base or 4 MB with experimental 3 MB card: EMS-only, or 3 MB extended plus 384 KB EMS
- Video
- PEGA2/AGS, 256 KB VRAM, 2 KB SRAM; EGA approximation
- Floppy drive
- One internal 3.5-inch drive: early 720 KB or later 1.44 MB; BIOS 4.61 supports both. Default 1.44 MB.
- Interfaces
- AT-compatible serial/parallel; Toshiba keyboard behavior incomplete
Catalogue classification
- Form factor
- Transportable
- Mobility
- Portable
- Processor generation
- 80286 class
- Graphics standard
- EGA
- Display technology
- Plasma
- Display colour
- Amber
- Storage interface
- Floppy drive, MFM
Research
This page separates documented hardware facts, behavior observed in original firmware, and the current fidelity of BluMach emulation.
Sales and commercial configurations
Evidence: documented or confirmed hardware
- Markets and period
A transportable business PC positioned as a compact desktop alternative, combining an integrated plasma display with room for standard expansion cards.
- Commercial models
The Toshiba brochure lists a 12 MHz 80286, 1 MB RAM, a 40 MB hard disk, a 720 KB floppy drive and MS-DOS 3.2. Toshiba later documented original T3200 units with a 1.44 MB drive and an upgrade option; the revision boundary is unknown.
- Options and accessories
Documented expansion includes the optional 3 MB memory card, an 80287 coprocessor, external RGB display support and two internal expansion slots.
Architecture and memory
Evidence: documented or confirmed hardware
- Memory
1 MB: 640 KB conventional + 384 KB EMS. With the optional 3 MB card, EMS-only mode provides 3456 KB EMS; extended mode provides 3072 KB extended + 384 KB EMS. Both endpoints pass Toshiba EMM.SYS and write/read tests. Physical EMS page order is approximated; intermediate 0.5–2.5 MB splits and 512 KB conventional mode remain unavailable.
- Video
Experimental 256 KB EGA with separate 2 KB AGS SRAM. Internal plasma decodes four BIOS/XCHAD levels; external output retains the sixteen EGA colors. Right Ctrl + Home/End selects the display. Right Ctrl + Down requests the BIOS 350/400-line extension. Documented 640-column active modes retain physical pixel proportions; exact line replication, fonts, hue and full-panel placement remain approximate. The resident XCHAD Ctrl+SysReq menu opens, edits levels and retains them on reopening; 41h SRAM access is supported. Capture/NMI and broader PEGA2 behavior remain incomplete.
- Storage
One internal 3.5-inch floppy: early 720 KB or later 1.44 MB. Unmodified BIOS 4.61 identifies the drive selected in Configure. Experimental internal MFM for Fujitsu M2227DT, physical 615/8/17; BIOS type 4 uses 612/8/17. New profiles contain no hard disk.
BIOS and firmware
- Known revisions
Toshiba system BIOS 4.61: IC22_033E.BIN and IC24_034E.BIN, 32 KB each; AGS_IC8_035C.BIN, 32 KB. Local ROMs required; hashes and provenance in the machine documentation.
Emulation status
- Screen controls
The owner’s manual describes one combined contrast/brightness dial. View → Screen controls represents it with a single brightness slider on the approximate internal orange plasma. The manual mentions no LCD backlight or second dial, so none is added. External EGA is unchanged; the optical response is approximate.
- Verified
Both 720 KB and 1.44 MB pass complete BIOS format/read, DOS FORMAT /S and fresh-process boot. A new MFM disk passes all BIOS-visible sectors, native FDISK and FORMAT /S, installation of all 67 Toshiba DOS 3.30 utilities, independent hard-disk boot and CHKDSK. Both 4 MB memory endpoints pass Toshiba SETUP, EMM.SYS and full page tests. FDC channel-2 DMA into the D000 EMS window also passes. These are scoped functional results, not cycle accuracy.