The NeXT Computer is based on the new 25 MHz Motorola 68030 central processing unit (CPU). The Motorola 88000 RISC chip was originally considered, but was not available in sufficient quantities. It includes between 8 and 64 MB of random-access memory (RAM), a 256 MB magneto-optical (MO) drive, a 40 MB (swap-only), 330 MB, or 660 MB hard disk drive, 10BASE2 Ethernet, NuBus, and a 17-inch MegaPixel grayscale display measuring 1120 by 832 pixels. In 1989 a typical new PC, Macintosh, or Amiga computer included a few megabytes of RAM, a 640×480 16-color or a 320x240 4,096-color display, a 10- to 20-megabyte hard drive, and few networking capabilities. It is the first computer to have shipped with a general-purpose DSP chip (Motorola 56001) on the motherboard. This supports sophisticated music and sound processing, including the Music Kit software.