Horizon 2.0 is a BBC Micro Emulator and is a major rewrite of the old version 1.x. It features better emulation with disk drive (Acorn DFS) and tape support, joysticks, improved sound with speech/sample playback, sideways RAM and full screen display. Diagnostic and trace tools are also included.

Version 2.0 features include...

BBC Micro (Model B) emulator with disk drive & tape systems

Full screen display with options to change aspect ratio & overscan

8271 disk controller emulation, 2 disk drives, compatible with Acorn DFS, Watford DFS and E00 DFS

ACIA low-level tape emulation, providing access to individual files

Sound chip emulation plays samples and speech

Joystick support for up to 2 PC USB joysticks, with key mapping option

Sideways RAM for Exile, E00 DFS, etc.

All 16 ROM sockets configurable for ROM or sideways RAM

Numerous diagnostic and trace tools for viewing internal chip states and tracing 6502 execution