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Unit 3

Creating Graphics & Images Bit by Bit

3.1 Unit Overview

3.2 Paint Pot Tutorial

3.3 Representing Images

3.4 Paint Pot Projects

3.5 Paint Pot Refactoring

3.6 Error Detection

3.7 Parity Error Checking

3.8 Magic 8 Ball

3.9 Persisting Photos

3.10 Map Tour

3.11BB Electronic Documents

3.12 Wrap Up

 

Error Detection

In this lesson we will learn about error detection. Are there any ways to confirm that the data that was received is the same as the data that was sent?

Suppose your bank is doing an electronic funds transfer and one of the bits involved switches from 0 to 1 or vice versa? This could happen because of an error during transmission or while the data is being written to a disk drive. And the error could make a signficant difference. For example, if we use only 8 bits then flipping the leftmost bit 00000001 to 10000001 changes the value from $1.00 to $129.00. But if we used 16 bits, then flipping the leftmost bit of 0000000000000001 to 1000000000000001 changes the value from $1.00 to $32,769.00.

When something like this happens would it be possible to detect the error? .

When something like this happens would it be possible to detect the error?

Unit Objectives



Make sure that you do the self-check at this link and that you update your Google Site Portfolio