Before assigning a String data type to a variable, we need to thoroughly understand Delphi's four string types. Short String Simply put, Short String is a counted array of (ANSII) characters, with up to 255 characters in the string.
In the early part of the 19th century, coal ovens were developed. Its shape was cylindrical and was made of heavy cast-iron. The gas oven saw its first use as early as the beginning of the 19th century as well. Gas stoves became very common household ovens once gas lines were available to most houses and neighborhoods. James Sharp patented one of the first gas stoves in 1826.
On June 30, 1896, William Hadaway was issued the first patent for an electric oven. In 1910, William Hadaway went on to design the first toaster made by Westinghouse, a horizontal combination toaster-cooker. One major improvement in electric ovens was the invention of resistor heating coils, a familar design in ovens also seen in hotplates.