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Despite its ubiquity in post-2016 displays, DDC/CI is not generally used by the operating system by default for brightness control on external displays. [10] Additional software can be used to send commands to the display, but the degree of system integration vary. Windows exposes DDC/CI as the Monitor Configuration Win32 API series. [11]
The Atari ST series has a digital-to-analog converter of 3-bits, eight levels per RGB channel, featuring a 9-bit RGB palette (512 colors).Depending on the (proprietary) monitor type attached, it displays one of the 320×200, 16-colors and 640×200, 4-colors modes with the color monitor, or the high resolution 640×400 black and white mode with the monochrome monitor.
Bit 15: 0 = reserved Bits 14–10: First letter of manufacturer ID (byte 8, bits 6–2) Bits 9–5: Second letter of manufacturer ID (byte 8, bit 1 through byte 9 bit 5) Bits 4–0: Third letter of manufacturer ID (byte 9 bits 4–0) 10–11: Manufacturer product code. 16-bit hex number, little-endian. For Example, "PHL" + "C0CF". 12–15
Counting from least to most significant bit, an attribute byte dedicates three bits for colour of the pixels valued 1, three bits for colour of the pixels valued 0, one bit for the brightness flag, and one bit for the flashing effect. The flashing effect causes the displayed foreground and background colours to alternate every 0.64 seconds.
0.01 ms [10] to less than 1 μs, [11] but limited by phosphor decay time (around 5 ms) [12] 1–8 ms typical (according to manufacturer data), older units could be as slow as 35 ms [13] Typically less than 0.01 ms, as low as 2 μs, [10] [14] but limited by phosphor decay time (around 5 ms) Estimates varying from under 0.01 ms to as low as 1 μs.
As of May 2020, both the 13.5-inch and 15-inch models ship with a pre-installed trial of Microsoft Office 365, as well as a pre-installed 64-bit Windows 10 Home for all general customers. [9] It is a downgrade compared to the predecessor, which offered Windows 10 Professional to all consumers, business and enterprise customers.
Lighting precision was confined to 8 bit integers, which limited the contrast ratio to 256:1. Using the HVS color model, the value (V), or brightness of a color has a range of 0 – 255. This means the brightest white (a value of 255) is only 255 levels brighter than the darkest shade above pure black (i.e.: value of 0).
Screen mode 6 is a 512×212-pixel mode with a 4-color palette chosen from the available 512 colors. Screen modes 5 and 7 are high-resolution 256×212-pixel and 512×212-pixel modes, respectively, with a 16-color palette chosen from the available 512 colors. Each pixel can be any of the 16 selected colors.