Development. Gradius V was officially announced on January 16, 2003, and is a result of the combined efforts of the now defunct Konami Computer Entertainment Tokyo and Treasure, a development studio founded by former employees of Konami.
How a Number System Works. Number systems are used to describe the quantity of something or represent certain information. Because of this, I can say that the word calculator contains ten letters. Our number system, the decimal system, uses ten symbols. Therefore, decimal is said to be Base Ten. By describing systems with bases, we can gain an understanding of how that particular system works.
A digit is an element of a set that, taken as a whole, comprises a system of numeration. Thus, a digit is a number in a specific context. In the decimal (base-10) Arabic numbering system, the digits are the elements of the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}. In the binary number system, the digits are the elements of the set {0, 1}. This system is used by computers because the two digits can represent the logic low and high states. The term binary digit is compressed to  bit  in computer parlance.