Amstrad PC1640DD — Dual Floppy Desktop System
The Amstrad PC1640 was the successor to the hugely popular PC1512, launched in 1987 with 640KB RAM and an EGA-compatible graphics chipset from Paradise Systems integrated on the motherboard. The 1640DD variant shipped with two 360KB 5.25-inch floppy disk drives. Also marketed as the PC6400 in the United States and sold under the Schneider brand in Germany, it was one of the most successful IBM PC compatibles in Europe and helped open the consumer PC market.
- CPU
- Intel 8086 @ 8 MHz
- Co-processor Socket
- Intel 8087 math co-processor (optional)
- RAM
- 640 KB (on-board)
- Storage
- Dual 360 KB 5.25-inch floppy disk drives (DD model)
- Graphics
- EGA-compatible (Paradise Systems chipset), CGA and Hercules modes supported
- Display
- Colour (ECD) or monochrome monitor; ECD model supports full EGA modes
- Sound
- PC speaker with physical volume control
- Expansion
- Three full-length 8-bit PC/XT ISA expansion slots, supports optional VGA board
- I/O Ports
- RS-232C serial, Centronics parallel, light pen connector
- Input Devices
- Full QWERTY keyboard with Atari joystick port, two-button Amstrad mouse
- Dimensions
- 372 x 284 x 135 mm
- Weight
- 7.75 kg (DD model)
- Power Supply
- Integrated into monitor housing
- Operating System
- MS-DOS 3.2, Digital Research DOS Plus (CP/M compatible)
- Bundled Software
- GEM Desktop, GEM Paint, Locomotive BASIC 2
- Manufacturer
- Amstrad plc (Brentwood, Essex, UK)
- Released
- 1987
- Also Known As
- Schneider PC1640, Sinclair PC500, PC6400 (US)
Word Unperfect
Unix clone libc I/O Active port Edit blocksWhat this app is
Word Unperfect is the XT-Emporium hosted Unix port of the WordPerfect-style clone work. This desktop app is the public wiki-style hub for the project: users can download a host binary, browse source, clone the repo, inspect screenshots, and follow the port status.
Current editor status
The current Unix TUI opens in the full-screen editor with the File, Edit, Search, Layout, Tools, Font, Graphics, and Help menu bar. Block operations live under Edit, matching the expected WordPerfect-style editing workflow instead of appearing as a separate top-level menu. Arrow-key submenu navigation and the console mouse menu path are covered by smoke tests, and the append path now verifies exported appended text. Font attribute rendering gives visible terminal effects for bold, underline, double underli
License
Word Unperfect uses the Word Unperfect XT-Emporium License. The terms are MIT-like for non-commercial personal, educational, preservation, and research use; commercial use requires permission from the XT-Emporium.com site owner.
Editable wiki model
This is configured as a desktop content app. The tab files live under config/apps/word-unperfect/tabs and are managed by the same filesystem/admin content tools as the other XT-Emporium content apps.