This document discusses different types of computer input devices. It introduces keyboards, mice, scanners, joysticks, and digital cameras. Keyboards allow data entry by pressing keys and come in standard, multimedia, and wireless varieties. Mice are popular pointing devices that can be clicked and come in serial, PS/2, optical, and wireless options. Scanners digitally input data using technologies like OCR, barcode readers, and MICR. Joysticks are pointing devices used to control game movements. Digital cameras capture images in digital form for computer storage and interpretation.