Week 9 Lecture 3 - Nathaniel G. Martin
Week 9 Lecture 3
Binary Files
Week 9
1
Reading and Writing Binary Files
Week 9
2
Binary Files
? It is possible to write the contents of
memory directly to a file.
? The bits need to be interpreted on input
? Possible to write out content like
images.
Week 9
3
Binary set with mode
? Add b to normal modes
? Read in binary: rb ? Write in binary: wb ? Append in binary: ab ? Update in binary: r+b
Week 9
4
ASCII vs Binary Files
? ASCII files represent everything as a
sequence of characters ? We can print the contents of an ASCII file on
the screen.
? ASCII needs character representation for line
control.
? Binary files are the bit values from memory.
? Printing to the screen produces nothing legible.
Week 9
5
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