HOW TO PROGRAM introduction for java and c++. 1.2 what is computer? a comuter is adivice capable of performing computations and making logical decisions at speed millions and even billions of times faster than human biengs.for example:can you calculate 4000874562892097484003947+64537873874768327466000857+64572854567783882354785688=? computer can calculate this question 0.2seconds but you can calculate 20-30 minute. 1.3 computer orgianization there are six major and logical computer orginazations this comuter orgainizations are: input unit output unit memory unit arithemical&logic unit(alu) central process unit(CPU) secondary storage unit. 1.4 history of internet.