====== Micro Technology Unlimited MTU-130 / MTU-140 ====== ==== Introduction ==== The **MTU-130** was a 6502 based computer released by Micro Technology Unlimited in 1981. The base system supported 480x256 B&W graphics, 80 Kbytes of RAM, digital audio/speech and included a light pen. An additional 256 Kbytes of RAM could be added as part of a 68000 co-processor card upgrade allowing up to 336 Kbytes of RAM accessible to both the 6502 and 68000 processors. A Z-80 co-processor card and CP/M were available as well. The system required the use of a disk to run as no OS was installed in ROM. The disk operating system was known as CODOS, Channel-Oriented Disk Operating System, and supported 1 or 2 drives and treated all devices as a file. The **MTU-140** was a later model that included drives and a monitor in an "all-in-one" case configuration. ---- ==== Applesauce Support ==== === Disk Types === Reading and writing the following **MTU-130 / MTU-140** disk types is supported: ^ MTU-130 / MTU-140 | |8" Single Sided (512 KB)\\ 8" Double Sided (1024 KB) | === File Systems === File System support for the following **MTU-130 / MTU-140** operating systems is available: ^ MTU-130 / MTU-140 | |CODOS | Applesauce will be able to verify directories and files in these disks as good or bad. In addition you can export individual files. Exported files can be saved in raw data format or converted to modern text formats. === Disk Image Formats === The following disk image formats are supported. ^ MTU-130 / MTU-140 | |IMD | === Recommended Drives === An 8" drive that supports double sided/double density. ---- ==== General Information ==== === Drive Information === 8" The MTU-130 / MTU-140 supported up to four 8" single or double sided, double density floppy drives using a standard Shugart compatible connection. Disks were 77 tracks of 26 sectors and 256 bytes per sector. === Emulators === Useful for image verification. ^Windows ^Mac ^Linux ^ |[[https://www.mamedev.org/|MAME]] (MTU-130) |||