Oldest laptop no HD can I run something bigger than the 720k disk. Sharp PC-4501
The specs I know
Sharp PC-4501 7.16 Mhz DOS Laptop
Sharp PC4501 DOS vintage, collectible laptop, Two-floppy drive system, No HD. 2-3/8 x 5-3/8 high contrast monochrome Supertwist LCD. Uses the 80188 processor, comes with 640 KB of RAM. Comes with a copy of a 720k DOS 5.0 disk. Works with AC-Cord, battery doesn’t seem to hold a charge. plus a 1200 baud internal modem.
I need to run some vintage radio programming software that has a timing routine that renders the program useless on modern pc's. Faster than 286
I finally learned about 720k disks and put tape over my 1.44's and formatted from the dos prompt in XP with FORMAT A: /T:80 /N:9
This made the disks readable in both my newer pentium pc and my old laptop.
I put the software on the 720k disk. when I run the setup program (hdinstal) for the software on the sharp laptop to install on the second floppy drive it wants 800k space. I need the 25 pin serial port to run to a RIB. a box that connects old gm300 motorola radio to pc.
How can I most easily run this radio software program? By using the parallel port to a drive somehow?
I like the old thing its just kind of cool and I dont really want to mod it. I just need a portable DOS based computer to program gm300 radios and run software that won't quite fit on a 720k floppy.
any good work arounds? I am oviously not a system builder.
Thanks Rob
HD , 720k 3.5 floppy, external HD, parallel port HD, 80188
The specs I know
Sharp PC-4501 7.16 Mhz DOS Laptop
Sharp PC4501 DOS vintage, collectible laptop, Two-floppy drive system, No HD. 2-3/8 x 5-3/8 high contrast monochrome Supertwist LCD. Uses the 80188 processor, comes with 640 KB of RAM. Comes with a copy of a 720k DOS 5.0 disk. Works with AC-Cord, battery doesn’t seem to hold a charge. plus a 1200 baud internal modem.
I need to run some vintage radio programming software that has a timing routine that renders the program useless on modern pc's. Faster than 286
I finally learned about 720k disks and put tape over my 1.44's and formatted from the dos prompt in XP with FORMAT A: /T:80 /N:9
This made the disks readable in both my newer pentium pc and my old laptop.
I put the software on the 720k disk. when I run the setup program (hdinstal) for the software on the sharp laptop to install on the second floppy drive it wants 800k space. I need the 25 pin serial port to run to a RIB. a box that connects old gm300 motorola radio to pc.
How can I most easily run this radio software program? By using the parallel port to a drive somehow?
I like the old thing its just kind of cool and I dont really want to mod it. I just need a portable DOS based computer to program gm300 radios and run software that won't quite fit on a 720k floppy.
any good work arounds? I am oviously not a system builder.
Thanks Rob
HD , 720k 3.5 floppy, external HD, parallel port HD, 80188