dosbox
scale window
https://superuser.com/questions/1425244/increase-dosbox-windowed-size run "DOSBox 0.74 Options.bat" the script starts notepad with configuration file: here change
windowresolution=1600x800
output=ddraw
preferences file on windows
C:\Users\USERNAME\AppData\Local\DOSBox
edit autoexec.bat
see autoexec section in subl ~/Library/Preferences/DOSBox\ 0.74-3-3\ Preferences
mount
intro mount
mount c ~/c
imgmount
imgmount b ~/c/disk1.img -t floppy
imgmount -u b # unmount