CS 1308 Computer Literacy and the Internet Final Exam Review.
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Transcript of CS 1308 Computer Literacy and the Internet Final Exam Review.
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CS 1308 Computer Literacy and the Internet
Final Exam Review
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Exam FormatApproximately 140 Total Points
70 Points Multiple Choice 25 Points True or False30 Points Short Answer16 Points Matching
Similar to lab homework and previous exams
Note: These values are approximations.
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Example Short AnswerWhy is it important to digitize information?
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Example Short AnswerIf you have a network connection that can
transmit at 300 Mbps, about how long would it take to download a file that is 2 GB?
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Example T/F problemT F A Wii controller would be considered
an input device.
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Example Multiple ChoiceHow many bits are in a byte?A) 4B) 8C) 10D) 16E) 256
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What is a Computer?
25 PointsAll information is digital
The more bits you have, the more different things you can represent
Know the difference between a “bit” and a “byte”2bits is a formula for determining the number of things
you can representVon Neumann Architecture
Data and instructions stored in memoryShould be able to draw it (with labels)
MemoryRAM
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What is a Computer (cont.)Input/Output
Secondary storageWhat are input and output devices. Be
able to give examples.Central Processing Processor
Fetch-decode-execute cycleInstruction sets, machine language (what
are they?)Only the sections of chapters covered
in class
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Networks
35 PointsAnalog vs. Digital
What is a modem?Bandwidth
Given a speed, calculate transmit timeBasic Terminology
Ethernet vs.Token RingLAN, WAN, packet, router, client-server
The internetTCPIPProtocols
HTTP, FTP
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Chapter 15 (cont.)Internet Applications
What is the difference between a LAN and a WAN?Broadcast vs. packet forwardingWhat is the difference between the WWW
and the Internet?World Wide Web
TerminologyHTMLHTTPBrowser
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Chapter 15 (cont.)E-mail
SMTPPOP3FTP
EncryptionKnow how public key encryption works for
sending secure messages
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Building the CPU3 Points
Boolean logic (AND, OR, NOT)Gates, circuits, truth tables
Truth tablesKnow what they are
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Putting it All Together
15 PointsAll information is digital
The more bits you have, the more different things you can represent
2bits is a formula for determining the number of things you can represent
Von Neumann ArchitectureData and instructions stored in memory and
logically the sameShould be able to draw it (with labels)
MemoryRAM
Store and FetchCache
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Putting it All Together (cont.)Input/OutputSecondary storage
Much slower than RAMWhat are input and output devices. Be able to give
examples.Central Processing Unit
Control Unit and Arithmetic/Logic UnitInstruction sets, machine language (what are they?)Fetch-decode-execute cycleProgram Counter (PC)/Instruction Pointer
(IP)/Accumulator (ACC)Registers
Why might more RAM make your computer run faster?
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Building Software5 PointsPhases of development
Requirements gatheringWriting SpecificationsWriting the CodeTestingMaintenance and Support
The longest of the phasesHigh-level Language
Closer to EnglishCompiler
Converts a high level language program to machine language for a particular computer.
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System Software and File Systems15 Points
Operating systemsBasic Input/Output (BIOS)What are the main functions of the OS?What resources does the OS manage?Know some of the names of the main Operating
Systems (Windows, Mac, Unix, Linux)File Systems
File Types Text vs. Binary
File protection Files need to be world readable to be shared on the web
Directory Trees Absolute vs. Relative Paths
o Current directory “.”o Parent Directory “..”
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Digital Audio6 Points
What is sound?Analog vs Digital representation of soundWhat is sampling?
Sampling rate (44.1 kHz)Sampling depth (bits per sample, e.g. 16 for CD
quality)File size of sampled file
MPEG CompressionWhat is it?What factors influence compression?
Be able to estimate the size of a file based on the sampling rate and bit depth.
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Digital Images6 Points
What is a pixel?Digital representation of imagesResolutionColors
How many bits per pixel?24 bit true colorSampling depth (bits per sample, e.g. 16 for CD quality)RGB color values
Digital TelevisionHDTV
What levels of resolution are considered HD? What are the different kinds of technology used to project HD?
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Information Systems20 points
SpreadsheetsCellsValuesFormulas
=A1+B1….common form of a formula IF, SUM, AVERAGE
Concepts from homework assignmentDatabases
Relational Databases Information stored in Tables Keys Relationships Every field should have just one piece of data and no data
should be duplicated Structured Query Language (SQL) used to add, modify,
delete database content
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Social Issues0 points
PrivacyEncryption
Know how public key encryption works for sending secure messages
Dangers of Large DatabasesDMCAWhat is the advantage of digital over analog
versions of information? Are there any disadvantages?
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Homework Assignments15 points
You will NOT have to do a circuit diagram or truth table.
Do each assignment and understand what you did.Remember something about the assignment details. For
example, “I imported a plain text file into Google Docs.”Remember what tools you used for what task.
You will not have to know the details of what key or menu item to use for a specific task.
Do each assignment and understand what you did.Remember something about the assignment details. For
example, “I had to figure out the mileage by car and by foot to my elementary school.”
Remember what tools you used for what task.You will not have to know the details of what key or menu
item to use for a specific task.
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How to StudyLook at old exams.Do the lab assignments (especially the
Spreadsheet assignment).Know the vocabulary and acronyms, what
they stand for and what they mean.SLEEP!!!
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What to bringPencils and erasersWe will provide scratch paperYou can use a calculator, but leave the cell
phones in the bag!Hint: Take the exam backwards. Many times
questions from the back of an exam will help with questions at the beginning.