Definition - What does System Unit mean? A system unit is the part of a computer that houses the primary devices that perform operations and produce results for complex calculations. It includes the motherboard, CPU, RAM and other components, as well as the case in which these devices are housed. This unit performs the majority of the functions that a computer is required to do.
size constancy - the tendency to perceive the veridical size of a familiar object despite differences in their distance (and consequent differences in the size of the pattern projected on the retina of the eye)
Contingency tables were used to illustrate the distribution of foot length in relation to the given variables for both genders. Significant differences between men and women for the foot lengths 25.00-25.66 cm (Size 38, net value) and 25.67-26.32 cm (Size 39, net value) were detected using StudentÂ´s t-test.