(1) For human monitors, see
moderator.
(2) A display screen for a computer, cable box, camera or other video-generating device. The predominant monitor technologies are LCD and OLED and their variations (see
LCD,
QLED,
OLED and
QD-OLED). A computer monitor often has built-in speakers. However, a TV monitor, designed as a home theater component, has no speakers. See
display standards.
(3) Software that observes the activities within a computer system. See
computer monitoring.
(4) Hardware that gathers performance statistics via direct attachment to a CPU's circuit boards. See
network analyzer.
(5) Firmware in a hardware device that provides control functions such as setting communications parameters. The monitor resides in a ROM or flash memory chip.