Transcript Final Review

Review
Final Exam
Chapters 1 – 8, 9 – 12
Review
Exam Topics
Chapters 1 – 3: Overview of Computer
Hardware and Software
Chapter 4: Operating Systems and File
Management
Chapters 5 – 7: Computer Networks and The
Internet
Chapter 8: Digital Media
Chapters 10 – 12: Information Systems
Development, Management and
Maintenance
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Review
Exam Information
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90 questions, 1-2 points each = 100 points
True/False and Multiple Choice
1 hour and 45 minutes to complete
Exam Weight: 30% of final grade
Use study aids at end of each chapter
Use self-tests and quick quizzes in
BookOnCD or online at Course Technology
site.
 Review slides presented in class
 Take prototype exam and check answers
 Email me if you have questions or need
clarifications
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Final Review
2: Computer Hardware
KEY CONCEPTS:
Main components of computer system
Microprocessor: CPU… ALU
Memory vs. storage
RAM…ROM…EEPROM
Magnetic vs. optical storage
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Final Review
2: Computer Hardware
A critical difference between data in RAM and
data on the hard drive is that data in RAM
_____________ and data on the hard drive
_____________.
a) is numeric only…. can contain letters and special
characters
b) is directly accessible to the CPU…. is stored for
future access
c) can be compiled…. is machine code only
d) is binary…. is ASCII
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Final Review
3: Computer Software
KEY CONCEPTS:
Application Software vs. System Software
Utilities
Common classes of applications/suites
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document production
spreadsheet
database
graphics
entertainment
Vertical vs. Horizontal Applications
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Final Review
3: Computer Software
A critical difference between System Software
and Application Software is that System
Software _____________ and Application
Software _____________.
a) is written in C…. is written in Java
b) can access the Internet…. can use only local data
c) manages the computer’s resources…. allows end
users to use of the computer to accomplish tasks
d) is based on a command line user interface….
uses a GUI (Graphical User Interface)
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4: Operating Systems &
File Management
Final Review
KEY CONCEPTS:
What is an operating system?
What is a BIOS?
What is the OS kernel?
What is a file system?
How are files stored?
What is the bootstrap routine?
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4: Operating Systems &
File Management
Final Review
A critical difference between a computer’s
BIOS and Operating System software is that
the BIOS __________ and the Operating
System __________.
a) acts as the master controller for the computer’s input and
output functions…. manages the user file system
b) contains essential input and output functions that get the
computer started…. acts as the master controller for all
activities that take place within a computer system
c) manages the computer’s resources…. allows end users to
use of the computer to accomplish tasks
d) is loaded from ROM…. is loaded from RAM
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Final Review
5: LANs and Wireless
KEY CONCEPTS:
LAN vs. WAN
Wired vs. Wireless LANs
Standards
Topologies
LAN security considerations
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Final Review
5: LANs and Wireless
A critical difference between a wired LAN and
wireless LAN is that a wired LAN ____________
and a wireless LAN ___________.
a) has a low error rate from interference….
encounters significant environmental interference
b) has no security issues…. has significant security
issues
c) uses standard communication protocols…. uses
proprietary communication protocols
d) allows direct access to the Internet…. require a
wireless router to access the Internet
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Final Review
6: The Internet
KEY CONCEPTS:
Internet vs. World Wide Web
Domain name… IP address… DNS
Internet protocol stack
Client-server technology
What is a packet?
Data transfer through the Internet
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Final Review
6: The Internet
A critical difference between a LAN and the
Internet is that a LAN ____________ and the
Internet ___________.
a) can’t be accessed directly by end users…. allows
end user access via a browser
b) is typically owned and operated by a single
individual or institution…. is a wide area network
that has no single owner/operator
c) has no standards for communications…. is based
on well-defined communications standards
d) uses a protocol…. uses no defined protocols
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7: The Web and Internet
Applications
Final Review
KEY CONCEPTS:
Application protocols … their purpose
– HTML, SMTP, FTP,
URL and its components
Cookies and their use
E-Commerce.... security considerations
E-mail basics of operation
– standard mail vs. web mail
Symmetric Key vs. Public Key Encryption
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7: The Web and Internet
Applications
Final Review
A critical difference between the World Wide
Web and the Internet is that the World Wide
Web __________ and the Internet _________.
a) is the data…. is the network
b) is global.... is local
c) uses search engines to find documents…. uses
routers to find documents
d) contains many different types of documents….
contains only text and numeric documents
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Final Review
8: Digital Media
KEY CONCEPTS:
Analog vs. digitized sound and pictures
Digital audio… sampling… digitization
Bitmap graphics vs. vector graphics
Resolution and color depth
Compressed vs. raw images
Digital video basics
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Final Review
8: Digital Media
A critical difference between bitmap graphics
and vector graphics is that bitmap graphics
__________ and vector graphics _________.
a) cannot be edited…. can be manipulated directly
b) has superior color depth…. has limited color
palettes available
c) is optimized for image storage…. requires vast
amounts of storage for simple images
d) specifies attributes for each pixel…. specifies
attributes for each object
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Final Review
10: Information Systems
KEY CONCEPTS:
 Transaction processing… Management
information… decision support system
 SDLC “waterfall”…. purpose and key phases
 Planning… build team, scope project
 Analysis… decide what must be done
 Design… decide how to do it
 Implementation… do it and test it
 Maintenance… operate, fix, improve it
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Final Review
10: Information Systems
A critical difference between System Analysis
and System Design is that System Analysis
__________ and System Design __________.
a) describes how the systems processes data….
describes what data the system uses
b) determines what to do…. decides how to do it
c) defines the systems look and feel…. defines the
systems operation
d) is done before the project team is formed…. is
done by the project team
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Final Review
11: Databases
KEY CONCEPTS:
What is a database and how is it used?
Flat file vs. relational model
Tables…records…fields
Data management tools and applications
Data independence
Distributed database basics
SQL basics
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Final Review
11: Databases
A critical difference between a flat file database
and other database models is that with flat files
____________ and other models ___________.
a) have no structure…. are hierarchically structured
b) can be edited/updated with a simple text editor….
require a database application to update data
c) each record is an independent entity…. establish
relationships between database records
d) are simply lines of text…. use a structure of tables,
fields and records
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Final Review
12: Computer Programming
KEY CONCEPTS:
Source code…machine code… compiler
High-level language vs. low-level language
Problem statement…algorithm…coding
Development tools… editors… IDEs…VDEs
Procedural programming
Object-oriented programming
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Final Review
12: Computer Programming
A critical difference between source code and
machine code is that source code ___________
and machine code ___________.
a) is plain text…. is encrypted
b) is created by humans…. is created by programs
c) is machine dependent…. is operating system
dependent
d) supports decision branches and different data
types…. only supports straight-line execution using
numeric data
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