Figure 2.1 Binary-coded decimal (BCD) data representations
the necessity of having the computer preform code conversion if the connected terminals transmit data in that code. If not, the computer will perform code conversion prior to operating upon the data. In Figure 2.3, the EBCDIC character set is illustrated. Note that the undefined character in this code, or any code for that matter, can be used to signify predefined special operations or data representations. Thus, one more data-compression techniques could be