Management Information Systems: Managing the Digital Firm (15th Edition)
15th Edition
ISBN: 9780134639710
Author: Kenneth C. Laudon, Jane P. Laudon
Publisher: PEARSON
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Chapter 13, Problem 19MLM
Explanation of Solution
System convention strategies
- There are four main conversion strategies which is used at what time of converting into new system.
- They include direct change over, phased implementation, pilot implementation and parallel operations.
- The direct change over is also referred to as cold turkey which helps to end the old method and then starts the new method.
- This is a simple strategy that employees follow the existing procedure for one week, and then later use a new procedure.
- The major problem of direct approach is that when new system fails or required for changes, then the system’s bugs are worked out without help of user services.
- The phased implementation is the common conversion strategy and includes rolling out a system part over the whole organization...
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1. Please read and run the following code and answer the questions.#include <stdio.h>int main(void) {int a;char *s;int v0 = 4, v1 = 5, v2 = 6, v3 = 1, v4 = 2;printf("Exercise 1:\n====================\n");switch(v0) {case 0: printf("Hello October\n"); break;case 1: printf("Go Kean!\n"); break;case 2: printf("Academic Building Center \n"); break;case 3: printf("UNION \n"); break;case 4: printf("Go ");case 5: printf("Kean! \n");default: printf("Have a great semester! \n"); break;}for(a=5; a<v1; a++) {printf("Kean");}printf("\n");if (v2 == 6) {s = "Go";}else {s = "Hello";}if(v3 != v4) {printf("%s Kean!\n",s);} else {printf("%s Computer Science!\n",s);}return 0;}
What is the output of the program? Please explain why.
1.[30 pts] Answer the following questions:
a. [10 pts] Write a Boolean equation in sum-of-products canonical form for the truth table
shown below:
A
B
C
Y
0
0
0
1
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
1
1
0
1
0
1
1
0
1
1
1
1
0
a. [10 pts] Minimize the Boolean equation you obtained in (a).
b. [10 pts] Implement, using Logisim, the simplified logic circuit. Include an image of
the circuit
In the past, encryption and decryption were mostly done by substitution and permutation of letters in a text message. study those classic cryptographic schemes Then, develop an automatic cipher using Javascript The cipher should be able to perform the following tasks:
generate keys
encrypt a given plaintext message with a key selected from the list of keys generated
decrypt a given ciphertext message with a known cipher key
Chapter 13 Solutions
Management Information Systems: Managing the Digital Firm (15th Edition)
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