I think he/she can and did. I used Adobe Photoshop on a 60 MHz Power Macintosh in 1996 and was quite productive with it. The word "software" is a mass or unco

I think he/she can and did. I used Adobe Photoshop on a 60 MHz Power Macintosh in 1996 and was quite productive with it. The word "software" is a mass or uncountable noun. It has no plural form. Thus "a modern software" is grammatically incorrect.