Stream & Buffer

• File itself is composed by binary data

• Buffer is to represent the binary data containing a number of byte

• Due to the memory size of program is limited, it is not allowed to use buffer to hold too many bytes

• Stream is basically a on-going process, to let you divide the large size of data into chunk and transfer in batch

• With the definition of larger buffer size, it can reduce the number of i/o of file from disk, in order to improve the speed of reading or writing the file

• As the buffer size is constant, so the file can be processed constantly