If you're considering a high resolution display, a finer dot pitch is important so images will be crisp. A dot pitch of 0.25 - 0.27 is recommended. Controlling the image on your screen requires using the controls on the front of the monitor. Analog controls are the conventional rotating dials or knobs offered on most economy models. Digital controls are microprocessor-based so they're more precise and easier to use.
Many digital controls offer an on-screen menu that appears every time controls are activated.
With digital controls, adjustments or settings are stored in a microprocessor chip so, unlike analog-controlled monitors, the settings won't change even if you turn the power off. Monitors, like most electrical appliances, are subject to rigid safety and regulatory standards. Most of these standards are country-specific and are established to protect consumers from environmental or usage hazards that can be prevented. In the USA, monitors are required to comply with UL and FCC standards. These standards were established to certify that the electronic equipment is safe and free from communications interference.