Principles of Information Systems
13th Edition
ISBN: 9781337660556
Author: Ralph Stair; George Reynolds
Publisher: Cengage Learning US
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Chapter 3, Problem 13DQ
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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(c) Consider the following set of processes:
Process ID
Arrival Time Priority
Burst Time
A
2
3
100
B
6
C
10
1 (highest)
2
40
80
D
16
4 (lowest)
20
(3c) In the following resource allocation graph, is the state a deadlocked one? If so
which ones are deadlocked? (3 points)
Resource allocation graph. R₁ = Resource, P = process.
R1
R3
R3
7
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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