☞ These files can be image files, mp3 files, pdf files etc.
☞ These are the files which we cannot read,
☞ It contain data in original format.
☞ Data is stored in byte form.
☞ Pickling process is used to read, write, append and update binary files.
☞ Serializing : To convert python object(string, list, tuple, etc) into byte stream and stored in hard disk for future use.
☞ Deserializing : To convert byte stream into python object.
☞ To use pickling process, we use pickle module.