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Unformatted text preview: We use a base 10 number system. Why? 0 1 2 3 4 5 6 7 8 9 The binary number system is a base 2 number system. 0 1 Why do we care about binary numbers? Computer systems work because of digital electronics. Computer memory and computer chips work by keeping track of large numbers of on / off “switches.” A switch that is off is associated with a binary number of 0; a switch that is on is associated with 1. Patterns of “on” and “off” stored inside a computer are used to encode ordinary numbers. Computer processors that use strings of 64 binary numbers to keep track of things are called 64‐bit systems. Variables: Variables are used to store information in the BASIC Stamp (the brain of your Boe‐Bot). We have four choices for variables: bit nib byte word CLASS PROBLEM: Write the decimal number 20 in binary. What is the smallest size variable (bit, nib, byte, word) required to store the data? ...
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- Winter '08