Atari 400

22 User's Handbook to the Atari 400/800 Computers
Save the 810's carton and packing material, should the unit need
to be moved or stored.
Before
installing the Atari 810 disk drive, be certain that the
power switches on both the Atari 810 and the computer are off .
The first step
in installing the Atari 810 is to plug one end of the
AC power adapter into a household outlet, and the other to the
Atari 810 console. This is shown in Illustration 2-2.
Illustration 2-2. Installing the Atari 810