Principles of Information Systems
13th Edition
ISBN: 9781337660556
Author: Ralph Stair; George Reynolds
Publisher: Cengage Learning US
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 3, Problem 11DQ
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In what ways, if any, do smart cards provide superior security to their magnetic stripe counterparts?
What would you do to fix a computer?
Smart cards outperform magnetic stripe cards in security circumstances.
Why are magnetic stripe cards inadequate for authentication, making smart cards necessary?
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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- When compared with newer, more secure smart cards, where do older magnetic stripe cards fall short?arrow_forwardWhen do you use a smart card instead of a magnetic stripe card since the latter provides more security?arrow_forwardThink about the information now stored on your computer's hard drive. Do you need immediate access to sensitive information stored on your computer? What are the potential repercussions of having such information stolen or lost? How do you be sure your electronic device is safe?arrow_forward
- Think about everything stored on your hard drive. Need quick access to confidential computer files? What would happen if such data were misplaced or stolen? How do you keep your gadget safe?arrow_forwardDescribe the elements of the backup plan in general. What is the difference between backup plans for computers and mobile devices?arrow_forwardCan you quickly explain how it is that individuals are able to charge their phones via the USB connections on their computers?arrow_forward
- Consider the parts of the backup plan. How do backup strategies for mobile devices vary from those for computers?arrow_forwardThink about the information now stored on your computer's hard drive. Do you require rapid access to sensitive information stored on your computer? What are the potential repercussions of having such information stolen or lost? What steps can you take to safeguard your electronic device?arrow_forwardUSB flash drives, also called "memory sticks," are used in a lot of places. Please list two (2) good things and two (2) bad things about using memory sticks in businesses.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Information Systems (MindTap Course...Computer ScienceISBN:9781305971776Author:Ralph Stair, George ReynoldsPublisher:Cengage LearningEnhanced Discovering Computers 2017 (Shelly Cashm...Computer ScienceISBN:9781305657458Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. CampbellPublisher:Cengage LearningPrinciples of Information Systems (MindTap Course...Computer ScienceISBN:9781285867168Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
- Fundamentals of Information SystemsComputer ScienceISBN:9781337097536Author:Ralph Stair, George ReynoldsPublisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Enhanced Discovering Computers 2017 (Shelly Cashm...
Computer Science
ISBN:9781305657458
Author:Misty E. Vermaat, Susan L. Sebok, Steven M. Freund, Mark Frydenberg, Jennifer T. Campbell
Publisher:Cengage Learning
Principles of Information Systems (MindTap Course...
Computer Science
ISBN:9781285867168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning
Fundamentals of Information Systems
Computer Science
ISBN:9781337097536
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning