The document discusses various internal and external computer components. Internally, it describes the processor, memory, adapter cards, and storage devices. The processor is the CPU and its speed is measured in MHz. Memory types include RAM, ROM, EPROM, and flash. Adapter cards allow peripherals to connect, such as PCI, PCIe, and PCMCIA. Storage devices store data and include hard drives, SATA, PATA, and SSDs. Externally, output devices such as monitors, speakers, scanners are covered. Monitors display images from the graphics card, speakers play audio, and scanners capture images.