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Chapter 1: 1. 2. 3. 4. 5. 6. Digital Systems: represent and manipulate discrete set of elements: Chess board, pack of cards,.. Number systems: decimal number systems Computers/digital systems: binary number system Other number systems of interest: octal, hexadecimal,.. Number systems: defined by the radix… radix/base? Base conversion: We think in decimal … machine think in binary.. lets convert decimal binary How about any radix conversion? Fractional numbers: number conversion… 41.6875 decimal to binary Hexadecimal number: representational support….binary to hexadecimal and back 7. Complements of numbers: radix complement Binary only 1’s complement: simple flip the “bits” or binary digits 2’s complement: 1’s complement + 1 8. Signed-binary numbers: Sign-magnitude 1’s complement for negative numbers 2’scomplement for negative numbers