Principles of Information Systems
13th Edition
ISBN: 9781337660556
Author: Ralph Stair; George Reynolds
Publisher: Cengage Learning US
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Chapter 3.1, Problem 1CTQ
Program Plan Intro
Components of computer:
Computer has four major components, they are:
- Central processing unit (CPU)
- Memory unit
- Input devices
- Output devices
Central Processing Unit (CPU):
- CPU plays the key role in a computer by carrying out instructions of a computer program.
- It performs all the basic logic, arithmetic, controlling and input/output operations that are specified by the instructions.
- The CPU comprises of two units, Arithmetic logic unit (ALU) and control unit (CU).
Memory unit:
- Once computer program instructions set are transformed into machine code by CPU, the machine code is stored in memory.
- Then the CPU fetches the required data and instructions from memory, perform the required operations and then sends the result and next set of instructions back to memory.
Input devices:
- The devices used by the user to feed information to computer, such as a hard drive, keyboard, or a networking card.
- These devices get the data from outside world into computer in the way that human eyes and ears bring the data to brain.
Output devices:
- Output devices are used by computer to deliver the information to the user, such as a monitor, printer, and speaker.
- The CPU takes the machine code present in memory and converts it into a format that is required by monitor’s hardware.
- Then the monitor’s hardware alters that information into different light intensities such that words or pictures are seen.
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Consider the following scenario in which host 10.0.0.1 is communicating with an external SMTP mail server at IP
address 128.119.40.186.
NAT translation table
WAN side addr
LAN side addr
(c), 5051
(d), 3031
S: (e),5051
SMTP
B
D (f.(g)
10.0.0.4
server
138.76.29.7
128.119.40.186
(a) is the source IP address at A, and its value.
S: (a),3031
D: (b), 25
10.0.0.1
A
10.0.0.2.
1. 138.76.29.7
10.0.0.3
6.3A-3. Multiple Access protocols (3). Consider the figure below, which shows the arrival of 6
messages for transmission at different multiple access wireless nodes at times t=0.1, 1.4, 1.8, 3.2,
3.3, 4.1. Each transmission requires exactly one time unit.
1
t=0.0
2
3
45
t=1.0
t-2.0
t-3.0
6
t=4.0
t-5.0
For the CSMA protocol (without collision detection), indicate which packets are successfully
transmitted. You should assume that it takes .2 time units for a signal to propagate from one node to
each of the other nodes. You can assume that if a packet experiences a collision or senses the
channel busy, then that node will not attempt a retransmission of that packet until sometime after
t=5. Hint: consider propagation times carefully here. (Note: You can find more examples of problems similar to this here B.]
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Just wanted to know, if you had a scene graph, how do you get multiple components from a specific scene node within a scene graph? Like if I wanted to get a component from wheel from the scene graph, does that require traversing still?
Like if a physics component requires a transform component and these two component are part of the same scene node. How does the physics component knows how to get the scene object's transform it is attached to, this being in a scene graph?
Chapter 3 Solutions
Principles of Information Systems
Ch. 3.1 - Prob. 1RQCh. 3.1 - Prob. 2RQCh. 3.1 - Prob. 1CTQCh. 3.1 - Prob. 2CTQCh. 3.2 - Prob. 1RQCh. 3.2 - Prob. 2RQCh. 3.2 - Prob. 1CTQCh. 3.2 - Prob. 2CTQCh. 3.3 - Prob. 1RQCh. 3.3 - Prob. 2RQ
Ch. 3.3 - Prob. 1CTQCh. 3.3 - Prob. 2CTQCh. 3 - Prob. 1SATCh. 3 - Prob. 2SATCh. 3 - Prob. 3SATCh. 3 - Prob. 4SATCh. 3 - Prob. 5SATCh. 3 - LI is the fastest type of cache memory built into...Ch. 3 - Prob. 7SATCh. 3 - Prob. 8SATCh. 3 - Prob. 9SATCh. 3 - Prob. 10SATCh. 3 - Prob. 11SATCh. 3 - Prob. 12SATCh. 3 - A _________ is a low-cost, centrally managed...Ch. 3 - Prob. 14SATCh. 3 - Prob. 15SATCh. 3 - Prob. 16SATCh. 3 - Prob. 17SATCh. 3 - Identify four fundamental components of every...Ch. 3 - What is the purpose of the computer bus?Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQCh. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Prob. 14RQCh. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - Prob. 18RQCh. 3 - Prob. 1DQCh. 3 - Prob. 2DQCh. 3 - Prob. 3DQCh. 3 - Prob. 4DQCh. 3 - Prob. 5DQCh. 3 - Prob. 6DQCh. 3 - Prob. 7DQCh. 3 - Prob. 8DQCh. 3 - Prob. 9DQCh. 3 - Prob. 10DQCh. 3 - Prob. 11DQCh. 3 - Prob. 12DQCh. 3 - Prob. 13DQCh. 3 - Prob. 3PSECh. 3 - Prob. 1TACh. 3 - Prob. 2TACh. 3 - Prob. 1WECh. 3 - Prob. 2WECh. 3 - Prob. 3WECh. 3 - Prob. 1CECh. 3 - Prob. 2CECh. 3 - Prob. 3CECh. 3 - Prob. 1CTQ1Ch. 3 - Prob. 2CTQ1Ch. 3 - Prob. 3CTQ1Ch. 3 - Prob. 1CTQ2Ch. 3 - Prob. 2CTQ2Ch. 3 - Prob. 3CTQ2
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