Use right-click menu on IMG file, or open ImDisk in Control Panel and click Mount new.
To mount the image as a virtual disk, install the ImDisk Virtual Disk Driver. CONV98AT is included, so you can convert other PC98 hard disks in the same way. This makes it much easier to transfer files between your PC98 and modern PC. You can either mount the image in Windows as a virtual disk, or write it to an SD/CF card and browse it like an ordinary flash drive. There's another cool thing about this image: it has a hybrid partition table created with the CONV98AT utility, which means it can be accessed directly on both a PC-9801 and a modern PC.
By using the /merge option, nhdgen will create the full nhd disk image. merge - by default, nhdgen just generates a separate 512-byte nhd header file. auto - automatically detects the HD parameters. To save yourself some time, you can also add this definition to types.ini in the Disk Explorer folder:Ĭode Select Expand nhdgen input_file.img output_file.nhd
To open this image in Disk Explorer, select manual HD and enter 17 sectors, 512 sector length, 8 heads, 98 format (you don't have to enter the cylinders, because Disk Explorer doesn't check that value). Later models have higher size limits, but 542MB is best for maximum compatibility. Why 542MB? Because that's just under the maximum allowed hard drive size imposed by a limitation in the PC98 disk BIOS. This is a 542MB raw (headerless) disk image. I can't guarantee compatibility with every system out there, but I have tested and used this disk image in the following environments:įirst, the disk image itself. There are no specific system requirements, but the configuration assumes that you have:ģ) an OPNA-equivalent sound source (either built-in, or a sound board such as the PC-9801-86) This is a Windows-readable PC-9801 disk image that includes many essential utilities and provides a stable, versatile DOS environment for playing games and other stuff. While NEC did not market these specific machines in the West, it did sell the NEC APC III, which has similar hardware as early PC-98 models.I heard you were making a PC-9801 hard disk image, so I decided to clean up mine and share it. The PC-9801's last successor was the Celeron-based PC-9821Ra43 (with a clockspeed of 433 MHz, using a 440FX chipset-based motherboard design from 1998), which appeared in 2000. After that, the decline of the PC-98 began. In 1990, IBM Japan introduced the DOS/V operating system which enabled displaying Japanese text on standard IBM PC/AT VGA adapters.
In the 1980s and early 1990s, NEC dominated the Japan domestic PC market with more than 60% of the PCs sold as PC-9801 or PC-8801. When the PC-98 was launched in 1982, it was initially priced at 298,000 yen (about 1,200 USD in 1982 dollars). Its successor, the PC-9801E, which appeared in 1983, employed an 8086-2 CPU, which could selectively run at a speed of either 5 or 8 MHz. Its 8-color display had a maximum resolution of 640×400 pixels. It ran at a clock speed of 5 MHz, with two µPD7220 display controllers (one for text, the other for video graphics), and shipped with 128 KB of RAM, expandable to 640 KB. It first appeared in 1982, and employed an 8086 CPU. The platform established NEC's dominance in the Japanese personal computer market, and by 1999, more than 18 million PC-98 units had been sold. The PC-9801 is a Japanese 16-bit microcomputer manufactured by NEC from 1982, the first in the PC-9800 series of 16-bit and 32-bit personal computers. You can also vote for your favourite system. Please scroll down for more sections and remember to share this page. Manufacturer : NEC | System : PC-9801 Welcome to the NEC PC-9801 ROMs section of the ROM Database.