Binary-coded decimal Binary-coded decimal In computing and electronic systems, binary-coded decimal (BCD) is a class of binary encodings of decimal numbers where each decimal digit is represented by a fixed number of bits, usually four or eight. Special bit patterns are sometimes used for a sign or for other indications (e.g., error or overflow). In byte-oriented systems (i.e. most modern computers), the term "unpacked" BCD usually implies a full byte for each digit (often including a sign), whereas "packed" BCD typically encodes two decimal digits within a single byte by taking advantage of the fact that four bits are enough to represent
Walkie bits Walkie bits Walkie Bits are little plastic toy turtles that sing, dance and walk (they can walk in the rhythm which you tap on their shell). They are made by Takara, a Japanese toy company in June 2005. Walkie Bits are very small, only about five centimeters, and come in a variety of different colors and "flavors" like "blue soda" and "green pineapple". The Walkie Bits turtles are very popular in Japan, with 300,000 units sold within just a few months of their release. Many Japanese people collect them because there are so many colors and they are relatively inexpensive.