Nikon AF lenses (which came to market in 1986) don't have built-in autofocus motor; the motor is in the camera body. Those days they were the film cameras, but

Nikon AF lenses (which came to market in 1986) don't have built-in autofocus motor; the motor is in the camera body. Those days they were the film cameras, but also modern DSLR cameras have the motor (with the exception of cheapest consumer DLRs, i.e. the D3000 and D5000 series).