CS 1308 Computer Literacy and the Internet. Exam Format Approximately 120 Total Points 70 Points Multiple Choice 25 Points True or False 10 Points.

CS 1308 Computer Literacy and the Internet

Exam Format

Approximately 120 Total Points 70 Points Multiple Choice 25 Points True or False 10 Points Short Answer 16 Points Matching

Similar to lab homework and previous exams

Note: These values are approximations.

Example Short Answer

Why is it important to digitize information?

Example Short Answer

If 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?

Example T/F problem

T F A Wii controller would be considered an input device.

Example Multiple Choice

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

What is a Computer?

25 Points All 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 represent

Von Neumann Architecture Data and instructions stored in memory Should be able to draw it (with labels)

Memory RAM

What is a Computer (cont.)

Input/Output Secondary storage What are input and output devices. Be

able to give examples. Central Processing Processor

Fetch-decode-execute cycle Instruction sets, machine language (what

are they?) Only the sections of chapters covered

in class

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

Chapter 15 (cont.) Internet Applications

What is the difference between a LAN and a WAN? Broadcast vs. packet forwarding What is the difference between the WWW

and the Internet? World Wide Web

Terminology HTML HTTP Browser

Chapter 15 (cont.)

E-mailSMTPPOP3FTP

EncryptionKnow how public key encryption works for

sending secure messages

Building the CPU

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

Truth tablesKnow what they are

Putting it All Together

15 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)

Memory RAM

Store and Fetch Cache

Putting it All Together (cont.) Input/Output Secondary storage

Much slower than RAM What are input and output devices. Be able to give

examples. Central Processing Unit

Control Unit and Arithmetic/Logic Unit Instruction sets, machine language (what are they?) Fetch-decode-execute cycle Program Counter (PC)/Instruction Pointer

(IP)/Accumulator (ACC) Registers

Why might more RAM make your computer run faster?

Building Software

5 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 “..”

Digital Audio

6 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

6 Points What is a pixel? Digital representation of images Resolution Colors

How many bits per pixel? 24 bit true color Sampling depth (bits per sample, e.g. 16 for CD quality) RGB color values

Digital Television HDTV

What levels of resolution are considered HD? What are the different kinds of technology used to project

HD?

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

Social Issues

0 points Privacy Encryption

Know how public key encryption works for sending secure messages

Dangers of Large Databases DMCA What is the advantage of digital over

analog versions of information? Are there any disadvantages?

Homework Assignments

15 pointsYou 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.

How to Study

Look 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!!!

What to bring

Pencils and erasers We will provide scratch paper You 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.