Ed Grey Enterprises

Floppy disk interface, LKDOS cartridge, operating manual and LKDOS utilities disk. Can support up to four 3″ to 5.25″ single-sided, double-sided or quad density disk drives. NMI snapshot button and Kempston joystick port on the disk interface.

Expands the 2068 with up to 256K of nonvolatile RAM. Includes LKDOS Extended BASIC cartridge and memory board that attaches to expansion port. LKDOS uses standard BASIC commands (LOAD, CAT, SAVE, etc) to operate the RAM disk. Uses 32K (62256) CMOS RAM chips backed up with a battery; comes with 64K. Compatible with Spectrum, OS-64

Contains Larken DOS with 8K ROM and 8K RAM on the cartridge. Used to control Larken DSK-400 or other disk interfaces. All LKDOS or extended BASIC commands use the PRINT #4: syntax. Support for all Timex DOS commands. Extended basic commands include CIRCLE, windows, box clear and fill, channel support for devices, variations of POKE,

For use with MTERM II. Includes Xmodem, auto-repeating dialer, extra 20 numbers, more.

Full-featured modem software that links the modem to the disk, allowing uploads or downloads of files larger than 100K. Send NMI saves and large text files as well as Basic or code files, which other modem programs couldn’t send because of memory limitations. Also files can be sent with or without a information header (Spec-term

Add special effects to a saved screen file, including wrapping around a globe, change perspective, magnify, reduce and merge. Graphical user interface. Supplied on tape or disk.

Improved version of Hunter board. Comes with battery-backup to make memory non-volatile. Developed with Larken Electronics to support Silicon Mountain’s WRX-16-based high-resolution software. Mapped in the 8K from 8-16K block. Can be re-mapped to 16-24K or 24-32K. Three SCRAM boards can provide 24K RAM for the ZX81 or 40K for the TS 1500. BOARD ENABLE

Public domain software; translates between all TS 2068 terminal programs.

Serial interface compatible with the TS 2050/WC 2050 modem. Includes 25-pin RS-232 connector. Uses Intel 8251 USART, the same chip as in the Timex modem, and supports up to 1200 baud modems and 19,200 baud direct connections. Three versions were available: JLO for use with John Oliger disk systems, AERCO for use with the FD-68