You have been hired by a home security company to design and implement a home alarm system. The logic of the system is as follows: once the alarm system has been armed, it is to sound if the front door is opened, the back door is opened or either of two windows is opened (you can assume there are only two windows).
Design the necessary circuit to implement the situation described above. Your circuit should have five inputs (A = alarm, F = front door, B = back door, W1 = window 1 and W2 = window 2). A = 1 means the system is armed; A = 0 means it is disarmed. F = 1 means the front door is open; F = 0 means it is closed. (Similarly for the back door and the windows.) There should be one output, S. When S = 1 the alarm should sound; S = 0 means the alarm is silent. Please use these letters to indicate the inputs and the output so all projects are consistent.
Be CAREFUL to get the correct function for your five inputs before simplifying and designing the circuit. You should minimize the circuit. Your inputs and output should be labeled. You should submit a Microsoft Word document including the following items while ensuring that everything is laid out in a manner that is easy to follow (portrait or landscape is acceptable):
• Your name in the top left
• Drawing of your completed circuit including all appropriate labels.
You will need to practice your MS Word drawing, layering, and object management skills.
See below for common logic gate objects that can be reused in your document.
• Truth tables for the circuit (use Word table feature)
• Kmap for the circuit (use Word table feature)
• Details (show your work) on what was done to simplify the circuit
• A brief written summary (250 to 500 words) of the process you followed, decisions made in laying out the circuit, etc..
In: Computer Science
Climbing Stairs
Bibi climbs stairs of a multi-leveled building. Every time Bibi climbs a set of stairs, she counts the steps starting from 1 to the number of steps in that particular set of stairs while climbing the stairs. For example if she climbs two set of stairs, the first containing 5 steps and the second containing 3 steps, she will say 1, 2, 3, 4, 5, 1, 2, 3 and the total number of steps would be 8. Find the number of steps that Bibi climbed in each set of steps.
Format Input:
The first line of the input contains an integer N, the number of numbers Bibi said. The second line of the input contains N integers Ai , the i-th number Bibi said. The given sequence of Ai will be a valid sequence, that means the whole input can be cut into sequences of 1, 2, . . . , X, where X is the number of steps in a set of stairs.
Format Output:
Print the number of steps that Bibi climbed for each set of steps, in the order of the input sequence, separated by single spaces. There is no leading and trailing spaces in the output.
Constraints
• 1 ≤ N ≤ 1, 000
• 1 ≤ Ai ≤ 1, 000
• The given sequence of Ai will be a valid sequence, that means the whole input can be cut into sequences of 1, 2, . . . , X, where X is the number of steps in a set of stairs.
Sample Input 1 (standard input):
8
1 2 3 4 5 1 2 3
Sample Output 1 (standard output):
5 3
Sample Input 2 (standard input):
10
1 2 1 1 2 3 4 1 2 3
Sample Output 2 (standard output):
2 1 4 3
Sample Input 3 (standard input):
5
1 2 3 4 5
Sample Output 3 (standard output):
5
Note The first sample is the example from the problem description.
In the second sample:
The first set of stairs have 2 steps, current sequence is ”1, 2”
second set have 1 steps, current sequence is ”1, 2, 1”
third set have 4 steps, current sequence is ”1, 2, 1, 1, 2, 3, 4”
last set have 3 steps, current sequence is ”1, 2, 1, 1, 2, 3, 4, 1, 2, 3”, just like the input
In the third sample, there is only one set of stairs which contains 5 steps.
*Note: Use C language and long long int (must be the same as the constraint)
In: Computer Science
Create a SavingsAccount class to store data of savers (account
holders). Your class should match the following
specifications.
1. Each instance of the class contains a private data member
savingsBalance indicating the amount the saver currently has on
deposit, saver’s name, saver’s CNIC, account number (this has to be
unique) and a member to store saver status (if savingsBalance >
10000 then status changes to gold otherwise silver).
2. Class also has a data member annualInterestRate to store the
annual interest rate which will be the same for all the
savers.
3. Implement a default constructor with minimum savingsBalance of
100, and other fields as well. Also create a parameterized
constructor if a customer wants to open an account with a different
starting balance.
4. Provide member function calculateMonthlyInterest that calculates
the monthly interest by multiplying the savingsBalance by
annualInterestRate divided by 12; this interest should be added to
savingsBalance.
5. Provide a recursive member function turnInToGold that returns
the number of months a saver need to become gold member
6. Provide a member function modifyInterestRate that sets the
annualInterestRate to a new value.
7. Provide a function that returns the total number of account
holders with the bank.
8. Write main() to test class SavingsAccount . Instantiate two
different objects of class SavingsAccount, s1 and s2, with balances
of $2000.00 and $3000.00, respectively. Set the annualInterestRate
to 3 percent. Then calculate the monthly interest and print the new
balances for each of the savers. Then set the annualInterestRate to
4 percent, calculate the next Month’s interest and print the new
balances for each of the savers. Also print the months it will take
for both to become gold savers of bank.
In: Computer Science
Write a Java program which takes a String representing an arithmetic expression as an input and displays whether or not the expression is balanced. If the expression is not balanced (i.e. the wrong # of parentheses or in the wrong order) it will display an error message. For Example: Input an expression: ( ( 2 + 4 ) * 2 ) Expression is balanced Input an expression: ( 5 * 7 – 6 ) ) Error: Expression is not balanced.... Implement a stack calculator using both a numbers and operations stack. Be sure to check that the expression is balanced before running it through the calculator.
In: Computer Science
Analyze the current trends of software crisis in a specific industry in relation to software engineering principles, concepts and methodology
In: Computer Science
File has a format Name and number, the number represents power. The name and the (integer) power are separated by some amount of space. Importantly, any line that begins with a hash '#' are comments and they need to be ingored. Write a program that reads from that file, and prints out only the name of the hero with the strongest power. That name should be capitalized (not uppercase, but capitalized, as in 'Galadriel')
Here is the heroes.txt
# DC heroes
# format: "name" "power"
# 57
# 83
hal 12
batman 48
grayson 14
cyclone 24
superman 38
luthor 15
joker 18
drake 33
wayne 42
rayner 18
# below heroes are additional heroes
arrow 22
kord 48
batwoman 37
supergirl 49
stargirl 24
darkseid 41
gardner 28
pennyworth 27
west 12
aquaman 47
kallor 45
arisia 36
What i have so far:
fn = open('heroes.txt')
count = 0
for z in fn:
line = z.strip()
if not '#' in line:
print(line.capitalize())
continue
po1 = line.find()
print(po1)
fn.close
In: Computer Science
Consider a 10Mbps Ethernet network consisting of 20 nodes interconnected by a bus topology with a single bridge placed in the approximate center of the network resulting in an equal umber of nodes on each side of the bridge.
In: Computer Science
Given a Syntax Directed Translation as follows.
|
Production |
Semantic Rules |
|
L → E n |
L.val = E.val |
|
E → E1 + T |
E.val = E1 .val + T.val |
|
E → T |
E.val =T.val |
|
T → T1 * F |
T.val = T1.val x F.val |
|
T → F |
T.val = F.val |
|
F → ( E ) |
F.val = E.val |
|
F → digit |
F.val = digit.lexval |
Question
Create an annotated parse tree for the following statements
In: Computer Science
Shapes2D
Write the following four classes to practice using an abstract class and polymorphism. Submit all four classes.
Shape2D class
For this class, include just an abstract method name get2DArea() that returns a double.
Rectangle2D class
Make this class inherit from the Shape2D class. Have it store a length and a width as fields. Provide a constructor that takes two double arguments and uses them to set the fields. Note, the area of a rectangle is the length times the width.
Rectangle2D class
Also make this class inherit from the Shape2D class. Have it store a radius as a field. Provide a constructor that takes a double argument and uses it to set the field. Note, the area of a circle is PI times it's radius times it's radius.
Shape2DDriver class
Have this class provide a method named displayName() that takes an object from just any of the above three classes (you can't use an Object type parameter). Have the method display the area of the object, rounded to one decimal place.
In: Computer Science
Two computers have 7-stage fetch-execute cycles where branches are determined in stage 4. One computer is not pipelined, and the other is pipelined. Assuming that tp = 1, answer the following questions when running a program with 50,000 instructions where 1,000 of the instructions are conditional branches and each branch, if taken, skips over 10 instructions.a.How much faster is the pipelined machine over the non-pipelined machine assuming that no branches are taken.b.How much faster is the pipelined machine over the non-pipelined machine assuming that all branches are taken.c.Bonus question: How many branches would the program have to have assuming every branch is taken (and every branch skips over 10 instructions) for the non-pipelined machine to execute the program in the same time as the pipelined machine?
In: Computer Science
There are 4 processes with different arrival time and service time.
|
Process |
Arrival |
Service |
|
A |
0 |
10 |
|
B |
3 |
4 |
|
C |
5 |
6 |
|
D |
7 |
2 |
a. Use FCFS, RR(4), SPN, SRT, and HRRN to schedule them. Calculate
the waiting time and turnaround time for each process and the
average turnaround time for each algorithm.
b. Compare all the 5 algorithms. Considering the overhead time for each scheduling takes 1 time unit, which is the best? If the overhead takes 4 time units, which is the best?
In: Computer Science
Use R programming Language
Q1.
(a)Write a function called lowerTrim that takes 2 arguments: x and trimBelow. This function takes the average of those values in x that are greater than the trimBelow. Make x a required argument and supply a default value for trimBelow of negative infinity.
First create some variable to be used for testing later.
x = 1:5 y = letters z = list(a = 1:5, b = 1:10)
Now test your function with the following
lowerTrim(x) lowerTrim(-10:5, trimBelow = 0) lowerTrim(-10:5, -2) lowerTrim(x = -10:5, trimBelow = Inf)
The return values should be: 3, 3, 2, and NaN, respectively
(b). Extend your function so that it takes a third parameter, which allows the caller to use a function other than mean() when calculating the lowerTrim. Call this argument sumFunc and give it a default value so that it operates like the original lowerTrim function. Call this revised function lowerTrim2
Check your function with the following calls:
lowerTrim2(-10:20, trimBelow = -5, median) lowerTrim2(-10:20, trimBelow = 0, sumFunc = summary)
The return values should be 8 and the summary values of 1, 5.75 10.5, 10.5, 15.2, and 20.
(c) Modify your function to take in any argument through the ... argument and pass these arguments. Call this new function lowerTrim3.
And test your code with
lowerTrim3(x, sumFunc = sd)
lowerTrim3(-10:20, trimBelow = 0, sumFunc = quantile,
probs = 0.99)
lowerTrim3(-10:20, trimBelow = 0, trim = 0.1)
The results should be 1.58, 19.8, and 10.5.
In: Computer Science
In: Computer Science
For Problems 1–4, using the STORES Database, formulate SQL queries, Hand in a listing of each query and its output.
1. (10 Points) For each customer, list each stock item ordered, the manufacturer, the quantity ordered, and the total price paid. Include the following columns in the order given below:
From Customer Table: Company
From Stock Table: Description
From the Manufact Table: Manu_Name
From the Items Table: Quantity, Total Price
Order the output by Company and Description.
2. (10 Points) List all orders with a shipping date between December 25, 1999 and January 5, 2000. List the Order Number, Order Date, Customer company name, and Shipping Date. Order by Customer Company Name and Order Number.
3. (10 Points) Count the number of customers who do not have any orders placed.
4. (10 Points) List all customers who are ordering equipment whose description begins with ‘tennis’ or ‘volleyball’. List the Customer number, Stock number, and Description. Do not repeat any rows.
5. (15 Points) Use the following SQL CREATE commands to CREATE the following tables in your
User ID:
CREATE TABLE Professor
(Prof_ID NUMBER(3) Constraint pk_Professor Primary Key,
Prof_Lname VARCHAR2(15) NOT NULL,
Prof_Hiredate DATE,
Prof_Sal NUMBER(8,2),
Prof_Dept CHAR(6)
);
CREATE TABLE Student
(Stu_ID NUMBER(4) Constraint pk_Student Primary Key,
Stu_Lname VARCHAR2(15) NOT NULL,
Stu_Major CHAR(6),
Stu_CredHrs NUMBER(4),
Stu_GradePts NUMBER(5),
Prof_ID NUMBER(3),
CONSTRAINT fk_Student_Prof_ID FOREIGN KEY(Prof_ID)
REFERENCES Professor
);
Hand in: Print out of the Create commands, the system response and a DESCRIBE of the tables.
6. (15 Points) Insert the following data into the tables created above using SQL INSERT commands.
Professor Table:
|
Prof_ID |
Prof_Lname |
Prof_Hiredate |
Prof_Sal |
Prof_Dept |
|
123 |
Hilbert |
20-MAY-1992 |
58000.00 |
MATH |
|
243 |
Newell |
15-JUL-1997 |
65500.00 |
CMPSCI |
|
389 |
Lessing |
04-APR-1988 |
40250.00 |
ENG |
Student Table:
|
Stu_ID |
Stu_Lname |
Stu_Major |
Stu_CredHrs |
Stu_GradePts |
Prof_ID |
|
2001 |
Parker |
CMPSCI |
52 |
160 |
243 |
|
2166 |
Smith |
ENG |
30 |
75 |
389 |
|
3200 |
Garcia |
MATH |
62 |
248 |
123 |
|
4520 |
Smith |
CMPSCI |
45 |
157 |
NULL |
In: Computer Science
Develop a simple point-to-point Message communication system(Java Message Service) using ActiveMQ. Provide the necessary code.
In: Computer Science