Philips NMS-8250
NMS-8250 was an MSX-2 - home computer from the electronics company Philips , which was launched in the 1986th It belonged to the Philips New Media System devices and therefore had the acronym "NMS" in its name. Back then it was a rare form of home computer in a desktop case and the first MSX computer from Philips in this design.
It was equipped almost the same as the previous model VG-8235 . Only a floppy disk drive with two read / write heads was already installed in this device, so that it could read and write double-sided floppy disks (720 kByte). With the NMS-8250, there was already space for a second drive in the desktop housing, but this was not installed as standard. The main difference between the NMS-8250 and the successor NMS-8280 was the lack of a genlock .
The computer had a remote keyboard. The desktop had two cartridge slots on the right. On the back it had interfaces for a cassette recorder , a printer, as well as interfaces for monitor and television ( SCART , PAL and composite video interface with video, Luma and audio interface), an interface for another drive and two joysticks Ports.
Inside it was equipped with a Z80A processor with a clock frequency of 3.58 MHz, a working memory of 128 kByte and a video memory of 128 kByte, as well as a 64 kbyte ROM. The ROM contained 48 kbytes for MSX-DOS and 16 kbytes for the MSX-BASIC version 2.0 as well as the command set for controlling the floppy disk drive. The graphics chip was a Yamaha V9938 and the sound chip a Yamaha YM2149.
variants
- NMS-8255: Same features as NMS-8250, but this computer was equipped with two floppy disk drives.
- NMS-8260: Same features as NMS-8250, but instead of a floppy disk drive, a 20MB SASI hard disk was integrated and a floppy disk drive interface was located in the place of the topmost cartridge slot. Only a few prototypes of this variant were made.
Web links
- Service Manual for NMS-8250/55 (PDF; 6.6 MB)