#1 - Alt+F4 on the desktop will bring up the Standard shutdown for Window 7, Vista, XP, 2000, 98, NT, 95 and 3.11 if I remember that far back
#2 - Windows Key for 95 and newer Windows to bring up the Start menu. Cycle highlighted buttons using the arrow keys until Shutdown is selected and hit Enter.
#3 - If Windows key is not on your keyboard, hit Ctrl+Esc to bring up the Start Menu. Repeat #2 instructions.
#4 - If you setup the power functions in the display / control panel section properly, hitting the power button once will shutdown the system properly (typically only for Pentium II or newer systems.)
#5 - Ctrl+Alt+Del will bring up the Task Manager on Win 95 or newer OS's and you can Tab/Arrow/Enter through that window until you get to the shutdown section.
Pretty much all Windows OS's can be navigated and controlled by only using the Keyboard and no mouse.... My old 386 didn't have a mouse for a few months when I first got it and that was the only way I could use it.
You can also cycle through the various sections of the Windows Desktop by using the Tab key while keeping an eye out for which section is highlighted and hitting Enter or the Arrow Keys to navigate within each tabbed section.
With Windows 8, generally hitting the power button will automatically shutdown the system properly. For every other version, one of the above should generally work.
While the Vic 20 had only joysticks ....the commodore had a mouse of sort.....now that's a bit far back to remember correctly,, but the floppy drive did use real soft floppies:lol:
Yup, two button mouse, Atari Joysticks, 5" floppies or cassette tape or cartridge, turbo cartridge to load and operate faster, a keyboard that was like 6 in one with all the other characters along the sides of each.
I even had the Geos Operating System... Fun times.