​KembaraXtra-Computer Terms – bit block:
A bit block refers to a rectangular group of pixels in computer graphics that is treated as a single unit. The term originates from the fact that each pixel’s characteristics, such as color or brightness, are represented by bits stored in memory.
Programmers often manipulate these groups of pixels collectively to speed up graphical operations. Techniques such as bit block transfer allow entire sections of an image to be moved, copied, or modified quickly on the display screen.