Video Graphics Array (VGA)

Illustrator Draftsman 1 & C - Volume 1 Equipment
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Edit Devices, Continued Compact Disk Read Only Memory (CD ROM) A compact disk read only memory (CD ROM) drive is a disk drive that reads data stored on computer disks. It can be internal or external to the system unit. CD ROM is used when many users need the same information and the nature of the information remains constant over time. The expression Write Once/Read Many (WORM) describes this type of technology. On CD ROM, information once recorded cannot be erased or changed, only read many times. Video Graphics Array (VGA) One piece of hardware that controls the size and resolution of what you see on the computer screen is a Video Graphics Array (VGA) or graphics card, This card, located on the motherboard, intervenes between the CPU and the monitor to control the screen display. This graphics card is extremely important to you as a DM. When you assess the capabilities of your computer, you should consider upgrading your graphics card to a Super Video Graphics Array. VGA boards are available as a grey scale display board or as a color display board. Grey scale display boards have 4 to 8 bits per pixel (picture element) and offer from 70 to 256 levels of grey. Color display boards have 8 to 24 bits per pixel and offer smooth blends and continuous color. 3-18

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