Just as you can quickly load the first program on a cassette tape on a C64, you can load the first program on a disk, on the C128, by pressing SHIFT and RUN/STOP. This automatically runs the command DLOAD“* , which will search for the first program on a floppy disk, load it and then run it.

You can easily switch back and forth, between your 80 column and 40 column monitor, by pressing the ESC key, followed by X.

When you wish to save a file to floppy disk, with the C128, you simply need to enter the command: DSAVE “filename”. But if you wish to save over an existing file, you need to enter the command: SAVE ”@0:filename“,8.

By default, the C128's function keys have been assigned specific, frequently used commands to help save you some typing. If you've forgotten the commands assigned to the F-keys, simply type KEY and press RETURN for a quick list.

The C128 has some useful enhancements to it's BASIC screen editor. When entering code into your BASIC program, use these ESC key combinations to enhance your data entry:
ESC then A = insert text mode
ESC then C = turn off insert mode
ESC then I = insert a blank line
ESC then D = delete a line
ESC then J = goto beginning of line
ESC then K = goto end of line
ESC then Q = delete the line to the right of the cursor

Running this little program (while in 64 mode) will allow you to use the C128's number keypad, Scroll Lock, and cursor keys when you're in 64 mode. 128_Keys.d64

The C128 has some improved DOS commands, with BASIC 7.0. But, by default, these commands typically assume that disk drive #8 is the active drive. If you want to execute these commands (like DIRECTORY or BLOAD) on disk drive #9, you need to use U9 as the identifier, like this: DIRECTORY U9 or BLOAD”*“,U9