De Unit 2 Jeopardy Jeopardy Template

Binary Addition	Octal & Hex	XOR & XNOR	MUX & DEMUX	KMaps & 7 Seg. Displays
100 In an 8-bit binary numbering system how can you tell if a number is positive or negative? Look at the MSB – if it is a “0” The number is positive. If it is a “1” the number is negative.	100 How many digits are in the hexidecimal system and what are they? 16 digits: 0-9 and A through F	100 What is the most common use for XOR and XNOR gates? Adder circuits (half & full adders)	100 A multiplexer or demultiplexer is a type of digital _______? switch	100 What is the purpose of a K-map? Simplification of logic circuits
200 Solve for binary AND decimal sum of the problem below. Express binary number in 8 bit form: 28-16 12 = 00001100	200 What is the octal equivalent of 7354(10)? 16272(8)	200 What type of gate does this symbol represent? (image in slides) It is an XOR gate	200 Describe what a DEMUX (demultiplexer) does and provide a specific example of one. Switches 1 input or source with multiple outputs. Example: Computer hooked up to various types of printers.	200 What is the simplified logic expression? (image in slides) AB’D’ + B’C’D’ + AC’ + BD
300 What is the 2’s Complement equivalent of the number below, expressed in binary AND decimal? 01110101 10001011 = -117	300 What is the decimal equivalent of 54437(8)? 22815(10)	300 What type of gate does this symbol represent? (image in slides) It is an XNOR gate	300 Describe what a MUX (multiplexer) does and provide a specific example of one. DEMUX MUX MUX: Switches multiple inputs or sources with 1 output. Example: home theater sound system.	300 What is the simplified logic expression? image in slides A’B + C’D + A’D + ACD’
400 Find the binary AND decimal sum of the problem below: 01110101 + 10011011 00010000 = 16	400 What is the hexadecimal equivalent of 15727(10)? 3D6F(16)	400 What is the correct truth table output for an XOR gate? XOR: 0 1 1 0	400 How can a multiplexer/demultiplexer be used to conserve energy. Provide an explanation and an example. MUX or DEMUX circuits can be used to power electronic clocks & scoreboards. They can conserve energy if they are cycled on one at a time, rather than all at once. If cycled fast enough, they all appear to be on at the same time!	400 What would the 7 segment displays (below) read? Image in slides AC
500 Find the binary AND decimal sum of the 8 bit binary numbers below. Binary answer must be expressed as an 8 bit number: 11011011 + 11011001 -1 10110100 = - 76	500 What is the decimal equivalent of 8A7C3(16)? 567235(10)	500 What is the correct truth table output for an XNOR gate? XNOR :1 0 0 1	500 What does FPGA stand for? What does PLD stand for? Field Programmable Gate Array Programmable Logic Device	500 What would the 7 segment displays read? image in slides 4U

DE Unit 2 Jeopardy

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