
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Explain some ways to break the deadlock.
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- How can you teach an old dog new tricks? How can a bird in the hand be worth two in the bush? How can you have your cake and eat it too? How can a serial in/parallel out register kill two birds with one stone and be used as a serial in/serial out register?arrow_forwardThank you, but I'm just not able to follow what is being done. It looks to me like the first minterm was left out of the initial step with no explanation as to why, and then it says MXY' + M'XY + MXY = (MX + M' + M)XY', but if I multiply out (MX + M' + M)XY', I get MXY'+M'XY'+MXY'. The M'XY' is not in the left side; so I don't see how this works. Then, later on, a complement law is mentioned, which does not exist in the chart, and there is no law/identity in the chart that matches going from XY' to X'+Y'. I apologize for being dumb here, but I'm just not following how you're getting from one expression to another. Could you please dumb it down even more for me. Thank you.arrow_forwardPLEASE ANSWER ALL PARTS ASAPPP!!!!!!!!!!arrow_forward
- Can someone help me and please show workarrow_forwardBriefly explain just-in-time compilationarrow_forwardSuppose we wish to design a car security system that operates as follows: • There are only two states: "siren off" and "siren on" • There is one combinational output: 0 - lights not flashing or 1 - lights flashing. • There are three combinational inputs: M(master), D(door), and V(vibration). Use the names M, D, and V for these inputs in the given order MDV. • M: 0 - off, 1 - on • D: 0 - door closed, 1 - door opened • V:0 - no vibration detected, 1 - vibration detected The circuit works as follows: • If the siren is currently off, it is turned on and the lights flash when the master is on and either the door is opened or vibration is detected. (This is a regular or, not an exclusive or). • If the siren is currently off, it will remain off and the lights will not flash when either the master remains off or if the master is on but neither the door is open not vibration is detected. • If the siren is currently on, it will remain on and the lights will flash as long as the master is on. •…arrow_forward
- Answer questions (a) and (b) below: (a) How many times exactly is the code block below executed? For (i = 1, n) { For (j = 1, i) { For (k = 1, j) { code block } } } Hint: You have to start with n=1, then make assumption what you make expect for any given n = N, and check if the formula you found works for n =N+1. This is what we call prove by induction. (b) What is the theta value of this code segment?arrow_forwardBased on the Tinkercad circuit accessible from the link below, complete the following activities:https://www.tinkercad.com/things/c1qtxCkOuBW Code is, // C++ code// const byte LED_PIN = 13;const byte METER_PIN = A4; void setup(){ pinMode(LED_PIN, OUTPUT); pinMode(METER_PIN, INPUT); Serial.begin(9600); startTimer();} void loop(){ } void startTimer(){ noInterrupts(); interrupts();} ISR(TIMER1_COMPA_vect){ digitalWrite(LED_PIN, digitalRead(LED_PIN) ^ 1);} 1. Complete the code in a way that LED blinks every 2 seconds.2. Change the startTimer method to accept a double value called timerFrequency, which representsthe frequency of the timer. Change the startTimer function so that it uses the value of this parameterto calculate and set the correct values for the OCRx and TCCRx registers.3. Use the potentiometer sensor connect to pin A4 to enable users to configure the timer frequency. Plsease share the final code only.arrow_forward
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