Exam Format

105 Total Points 25 Points Short Answer 20 Points Fill in the Blank 15 Points T/F 45 Points Multiple Choice

The above are approximations

Example Short Answer

What are the three parts of the execution cycle?

Example T/F problem

T F The ALU is not part of the CPU.

Example Multiple Choice

How many bits are in a byte?A) 4B) 8C) 10D) 16E) 256

Building the CPU

20 PointsBoolean logic (AND, OR, NOT) Gates, circuits, truth tables

Truth tables AND, OR, NOT Draw a truth table from a circuit

Understand example CE circuit from class

Putting it All Together

25 Points All 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 Architecture Data and instructions stored in memory and

logically the same Should be able to draw it (with labels)

Putting it all Together (cont.)

Memory RAM

Store and Fetch Cache

Input/ Output Secondary storage is much slower than

RAM Why might your program run faster if

you add more RAM?

Putting it all Together (cont.)

Central Processing Unit (CPU) Instruction Sets Machine Language Control Unit / Arithmetic Logic Unit (ALU)

Execution Cylce - Fetch/Decode/Execute Registers (Program Counter, Instruction

Pointer, Accumulator)

Building Software

8 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.

System Software and File Systems 15 Points

Operating systems Basic 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

Current directory “.” Parent Directory “..”

Information Systems 20 points

Spreadsheets Cells Values Formulas

=A1+B1….common form of a formula IF, SUM, AVERAGE

Concepts from homework assignment Databases

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

Digital Audio

5 Points What is sound? Analog vs Digital representation of sound What is sampling?

Sampling rate (44.1 kHz) Sampling depth (bits per sample, e.g. 16 for

CD quality) File size of sampled file

MPEG Compression What is it? What factors influence compression?

Be able to estimate the size of a file based on the sampling rate and bit depth.

Digital Images

5 Points What is a pixel? What is resolution?

What if I have more pixels? Larger files, better quality

More bits used for each pixel, the more colors I can represent.

Homework Assignments

20 pointsDo 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.You will have to know simple formulas for

spreadsheets.

How to Study

Look at homework assignments. Use study groups. Read the book. Memorize, but understand. Don’t stay up late!! Get some sleep

and eat a good breakfast.

What to bring

Pencils and erasers We will provide scratch paper No calculators or cell phones

Questions