Chapter One PowerPoint Slides - Bo Holt

clashjudiciousElectronics - Devices

Nov 8, 2013 (3 years and 8 months ago)

97 views

Computer, Internet, Web, and

E
-
Mail Basics

C
HAPTER 1

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

2

Chapter Contents


Section A:
Computer Basics


Section B:
Internet Basics


Section C:
Web Basics


Section D:
E
-
Mail Basics

1

SECTION
A

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

3

Section A: Computer Basics


A Computer Is…


Computer Categories


Personal Computer Systems


Data, Information, and Files


Application Software and Operating System
Basics

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

4

A Computer Is…


Device that accepts input, processes
data
(symbols
representing facts, objects, or ideas), stores
data
, and
produces output

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

5

A Computer Is…


A stored program means that a series of
instructions for a computing task can be
loaded into a computer’s memory


Allows you to switch between tasks


Distinguishes a computer from other simpler
devices


Most computers store data in a digital format as a
series of 1s and 0s

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

6

Computer Categories


Computers are categorized
based on criteria such as
usage, cost, size, and capability


Microcomputers


Personal computer (for individual
needs)


Desktop computer (separate, external
input/output components)


Notebook computer (most input/output
components built all into one unit)


Tablet computer

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

7

Computer Categories


Handheld computer


PDA


Pocket sized, battery


powered


Workstation


Computer network


LAN


Videogame console


Nintendo’s GameCube


Sony’s PlayStation


Microsoft’s Xbox

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

8

Computer Categories


Mainframe computer (fastest, most powerful)


Processes data for hundreds of thousands of users


Supercomputer


One of the fastest computers in the world


Breaks codes, models weather


Server


Supplies client computers with data


Most PC’s can be configured to


perform the work of a server

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

9

Personal Computer Systems


A computer system refers to a computer and
all the input, output, and storage devices that
are connected to it

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

10

Personal Computer Systems

Disks (hard and floppy) use magnetism to store and
retrieve data while CDs and DVDs both utilize laser
technologies. Data waits in memory until it can be
processed, stored to disk, or outputted.

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

11

Personal Computer Systems


Peripheral devices enhance the
functionality of a computer


Sound Card (required for high
-
quality audio)


Network Card (allows for
connectivity to a network

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

12

Data, Information, and Files


Data becomes information when it is
presented in a format that people can
understand and use


Digital format


A file is a named collection of data that exists
on a storage medium


Data and executable files


File names and file extensions

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

13

Application Software

and Operating System Basics


Application software


Set of computer
programs that helps a
person carry out a task


System software


Helps the computer
system monitor itself and
function efficiently


Operating systems


Microsoft Windows


Mac OS

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

14

Application Software

and Operating System Basics


Two of the most popular personal computer
platforms are PCs and Macs


PCs


Based on the design for the IBM PC


Macs


Based on a proprietary design for the Macintosh


PC and Mac platforms are not compatible

1

SECTION
B

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

15

Section B: Internet Basics


Internet Resources


Internet Connections


Internet Service Providers


User IDs and Passwords

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

16

Internet Resources


The Internet is a collection of linked computer
networks


Main communication routes referred to as the
Internet backbone


TCP/IP allows for communication between all
Internet devices

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

17

Internet Resources


Web sites (collection of
Web pages)


Search engines


Downloads and
uploads


P2P file sharing
(enables access to files
stored on another
Internet user’s
computer

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

18

Internet Resources


E
-
mail


Bulletin boards


Usenet


Blogs


Chat groups and

instant messaging


1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

19

Internet Resources


Internet telephony


E
-
commerce


Broadcasting


Remote access and control

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

20

Internet Connections


Dial
-
up connection


Simple and most
inexpensive


Signals travel over
phone lines


Voiceband modem


Cable Internet service


Computer signals travel
over cable TV lines


Cable modem


Always
-
on connection

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

21

Internet Connections

To determine whether a
computer has a modem,
look for a place to plug in a
standard phone cable.

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

22

Internet Connections


ISDN (Integrated Services Digital Network)


Speeds are marginally better than dial
-
up


DSL (Digital Subscriber Line)


Up to 125 times faster than dial
-
up


DSS (Digital Satellite Service)


Average seed is 500 Kbps

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

23

Internet Service Providers


Maintains equipment to provide Internet
access to subscribers


Where to locate a list of ISPs


Yellow Pages


www.thelist.com


Your computer may

contain a directory

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

24

Internet Service Providers


How to choose an ISP:


Geographical coverage


Type of service


Quality of service


Cost of monthly service


Cost of equipment and installation


Extra services


Customer service

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

25

User IDs and Passwords


Designed to provide access for authorized
users (logging in/on)


A user ID serves as a person’s unique identifier


A password verifies your identity


Case sensitive

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

26

User IDs and Passwords


Choosing a secure password

1

SECTION
C

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

27

Section C: Web Basics


The World Wide Web


Browsers


Search Engines

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

28

The World Wide Web


Collection of files that can be linked and
accessed using HTTP


The World Wide Web consists of:


Web pages


Links


Web sites


Web servers

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

29

The World Wide Web


Every Web page has a unique address, or
URL


HTML is the standard format for Web
documents

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

30

Browsers


Web browsers help you access Web pages


Microsoft Internet Explorer


Netscape Navigator


Mozilla Firefox

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

31

Browsers


Common browser features

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

32

Browsers


Browsers fetch and
display Web pages


HTML tags tell the
browser how to
display information
on the Web page

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

33

Browsers

To copy a passage of text

from a Web page,
highlight the text, click
the Edit menu, then
select Copy. Next, switch
to your own document
and use the Paste option.

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

34

Search Engines


Web site that helps you find information


Different search engines return different
results

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

35

Search Engines


A query describes the information you want
to find


Keywords describe the information you’re trying
to find


Search operators describe the relationship
between keywords


1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

36

Search Engines


A topic directory is

a list of topics and
subtopics


Arranged in a
hierarchy

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

37

Search Engines


Search forms help you enter complex queries

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

38

Search Engines


Some search engines accept natural
language queries


“Where can I find a review of The Producers?”

1

SECTION
D

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

39

Section D: E
-
Mail Basics


E
-
mail Overview


Netiquette


Spam


E
-
mail Technology

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

40

E
-
Mail Overview


Any person with an e
-
mail account can send
and receive e
-
mail messages

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

41

E
-
Mail Overview


Basic e
-
mail activities


Writing


Reading


Replying


Forwarding

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

42

E
-
Mail Overview


E
-
mail attachments are files that travel with
an e
-
mail message


E
-
mail software converts e
-
mail attachments to
MIME


HTML
-
compliant e
-
mail software

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

43

E
-
Mail Overview

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

44

Netiquette


Internet etiquette


Meaningful subject


Use uppercase and lowercase letters


Check spelling


Be careful what you send


Be polite


Be cautious with sarcasm and humor

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

45

Netiquette


Use smileys and text
messaging shorthand
cautiously


Use the Bcc function for
group mailings


Don’t send replies to all
recipients


Don’t send huge attachments


Explain attachments


Stay alert for viruses


Notify recipients of viruses

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

46

Spam


Unwanted electronic junk mail


Don’t reply


Don’t link


Guard your e
-
mail address


Use spam filters


Automatically routes advertisements and other junk
mail to appropriate folder


Report spam


Change your e
-
mail address

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

47

E
-
mail Technology


E
-
mail systems carry and manipulate e
-
mail
messages


E
-
mail servers


Based on store
-
and
-
forward technology


Three types of e
-
mail systems widely used today:


POP (from remote server to local hard disk)


IMAP (from remote server to local disk with option to
leave copy on server)


Web
-
based e
-
mail (remains on remote server)

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

48

E
-
mail Technology


Web
-
based e
-
mail accounts allow you to use
a browser to access your e
-
mail messages

1

Chapter 1: Computer, Internet, Web, and E
-
Mail Basics

49

E
-
mail Technology


A POP server is a
computer that stores
your incoming
messages until they
can be transferred to
your hard disk


E
-
mail client software


SMTP server

C
HAPTER 1
C
OMPLETE

Computer, Internet, Web, and

E
-
Mail Basics