sentences:  For hardware-control-oriented embedded systems, the I‑TRON-based real-time operating system, named RX616, was implemented by NEC for the V60/V70.The 32-bit RX616 was a continuous fork from the 16-bit RX116, which was for the V20-V50.In 1987, Digital Research, Inc. also announced that they were planning on porting FlexOS to the V60 and V70.