User contributions for Philip
15 September 2022
- 08:5908:59, 15 September 2022 diff hist +368 N Glossary:Saturation (transistor) Created page with "When a junction transistor used as a switch in a digital circuit is turned on as hard as it will go it is said to be saturated. In this condition there is excess charge in the collector region, and this has to drain away before the transistor will switch off again. This limits the speed at which it can switch, and so saturation is a condition designers try to avoid."
- 08:5308:53, 15 September 2022 diff hist +443 Glossary →Glossary of Terms
- 08:4408:44, 15 September 2022 diff hist +118 Glossary:Saturation (colour) No edit summary Tag: Visual edit
- 08:4308:43, 15 September 2022 diff hist +118 Glossary:Luminance No edit summary Tag: Visual edit
- 08:4308:43, 15 September 2022 diff hist +118 Glossary:Chrominance No edit summary Tag: Visual edit
14 September 2022
- 21:3721:37, 14 September 2022 diff hist +56 Glossary:Chrominance No edit summary Tag: Visual edit
- 21:3621:36, 14 September 2022 diff hist +66 Glossary:Luminance No edit summary Tag: Visual edit: Switched
- 21:3421:34, 14 September 2022 diff hist +562 N Glossary:Saturation (colour) Created page with "The saturation of a colour is its purity. This can be used together with the chrominance (the hue) and the luminance (the brightness) as an alternative to specifying the red, green and blue (RGB) components. This is useful because the eye perceives variations of chrominance and saturation across an image much less sharply than variations of luminance. Hence these latter can be presented at lower definition..." Tag: Visual edit
- 21:3121:31, 14 September 2022 diff hist +524 N Glossary:Chrominance Created page with "Chrominance is the hue of a colour. This can be used together with the luminance (the brightness) and the saturation (the purity of the colour) as an alternative to specifying the red, green and blue (RGB) components. This is useful because the eye perceives variations of chrominance and saturation across an image much less sharply than variations of luminance. Hence these latter can be presented at lower definition with no visible degradation in the ima..." Tag: Visual edit
- 21:3021:30, 14 September 2022 diff hist −88 Glossary:Luminance No edit summary Tag: Visual edit
- 21:2521:25, 14 September 2022 diff hist +612 N Glossary:Luminance Created page with "A colour in an image or video can most simply be defined by its red, green and blue (RGB) components, but in principle any 3 independant properties can be used. Another way is by specifying its luminance (brightness), its chrominance (the hue of the colour) and its saturation (the pureness of the colour). This is useful because the eye perceives variations in luminance across an image much more sharply than variations of chrominance or saturation. Hence..." Tag: Visual edit: Switched
- 21:1121:11, 14 September 2022 diff hist +18 Glossary:CMY No edit summary Tag: Visual edit
- 21:1121:11, 14 September 2022 diff hist +253 N Glossary:CMYK Created page with "Rather than the primary colours red, green and blue, printers use the complementary colours cyan, magenta and yellow (referred to as CMY) but also black to darken a pixel as required. This is then referred to as CMYK." current Tag: Visual edit
- 21:0621:06, 14 September 2022 diff hist +543 N Glossary:CMY Created page with "A colour image or video can be represented by the red, greeen and blue (RGB) primary colours added together in appropriate proportions, but this doesn't work for printing, since each colour ink subtracts a range of colours from the incident white light rather than adding anything. So printers use the complementary colours Cyan (green + blue, absorbing red light), Magenta (blue + red, absorbing green light) and Yellow (red + green, absorbing blue light). In practice, prin..." Tag: Visual edit
- 20:5520:55, 14 September 2022 diff hist +85 N Glossary:RGB Created page with "RGB refers to the separate red, green and blue components of a colour image or video." current Tag: Visual edit
- 20:5320:53, 14 September 2022 diff hist +43 Glossary:NIC No edit summary Tag: Visual edit
- 20:5220:52, 14 September 2022 diff hist +360 N Glossary:NIC Created page with "A NIC or Network Interface Controller is the part of a computer or router that connects it to a network. Formerly it was often a separate add-on card but nowadays it's nearly always buit-in to the computer unless an extra one is needed. A computer connected to more than one network or a router has a NIC for each network, and each must have its own IPAddress."
12 September 2022
- 15:4715:47, 12 September 2022 diff hist +123 Sandbox No edit summary Tag: Visual edit: Switched
- 11:5811:58, 12 September 2022 diff hist +267 Glossary:USB No edit summary Tag: Visual edit
- 09:4909:49, 12 September 2022 diff hist +227 Glossary →Glossary of Terms