The document compares various parts of an animal cell to components of a computer. It describes how the cytoplasm is like the computer motherboard in allowing organelles to move freely. It also likens ribosomes to computer pixels that read RNA to make proteins, cell membranes to computer firewalls that regulate what enters and exits, and the cytoskeleton to rubber casing on wires that holds cell components together. Other comparisons include DNA to computer coding, cell vacuoles to RAM storage, vesicles to computer wires that transport materials, the nucleus and CPU carrying out functions, the nucleolus and CPU cache aiding transcription and processing, mitochondria to the computer power supply, the ER to the computer front-side bus, the Golgi apparatus