A 2.5 kW system running for 4 hours a day would costs approx. $40.11 per year to run or 47.75 cents a day or 11.9c per hour. 2. A 3.5 kW system running for 8 hours a day for 12 weeks (84 days) of the year at 24 degrees will cost appox.
Photoshop was developed in 1987 by the American brothers Thomas and John Knoll, who sold the distribution license to Adobe Systems Incorporated in 1988. Thomas Knoll, a PhD student at the University of Michigan, began writing a program on his Macintosh Plus to display grayscale images on a monochrome display.
Techopedia explains PostScript (PS) Adobe developed PostScript in 1985, but the concept was put forth by John Warnock and Charles Geschke in 1982. It is an object-oriented language because it treats images as geometrical objects and not bit maps. The language quickly became a printing and imaging standard.