Definitions
A digit is one of the characters used in any positional numbering system to represent all numbers starting at 0 and ending at one less than the base of the numbering system. In the decimal system, there are ten digits, 0 – 9, and in the hexadecimal system there are sixteen digits, 0 – 9 and a – f.
A binary number system is one that uses only two digits, 0 and 1.
A hexadecimal number system is one that uses sixteen digits, 0 – 9 and a – f.
CPU is an abbreviation for central processing unit. This is the “active” part of your computer, which executes all the machine instructions that make the computer do useful work.
A machine instruction is one of the fundamental operations that a CPU can perform. Some examples of these operations are ...
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