Download Exploring Microsoft Office 2003

LIBS 100
11 May 2005
Finish with email
Essential Computing Concepts
Moving mail into a folder



Select a message
Hold down the left
button and drag the
message into the
folder
Try it: move the email
from me into the
folder you created
student emails
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Attaching a file to an email
message



Create a new message
Find the “test.txt” file you
saved to your NAS drive
area
Send it as an attachment
to yourself (you should
have your name in your
contacts list now)
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Sending an Attachment





In a new message, click
“Attachments”
Click on “Browse”
Select a file
Select “Open”
Click “Attach” then
“Close”
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Viewing an Attachment




Click on the
attachment
“Save” saves attachment to
your computer
“Open” opens it right away
Open the attachment you just
received
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Essential Computing
Concepts
Computer Basics
Objectives

Describe components of a computer system

Define microprocessor, memory, and auxiliary
storage

Describe a digital camera
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Any Computer System
Memory
Input
Central processing unit
(CPU)
Output
Auxiliary Storage
Auxiliary
Storage
Auxiliary
Storage
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The IBM PC

A combined effort between IBM (credibility and
marketing), Microsoft (operating system), and Intel
(microprocessor); introduced in 1981

The PC was created as an ‘open’ machine enabling
independent contractors to develop hardware and/or
software to improve it

PC clones quickly followed and the market soon
exploded; IBM has a fraction of the market it created
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The PC Today
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Inside the PC

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All computers are based on
the binary number system
A bit or binary digit has one
of two values, zero or one
A byte is the smallest
addressable unit of memory
(8 bits)
ASCII provides for 256
(or 28) characters



01000001 – A
01000010 – B
etc.
On
Off
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The Microprocessor


The central processing unit (cpu) or “brain”
of the PC
Original chips were numbered



8086, 80286, 80386, 80486
Pentium is an Intel trademark
Clock speed (MHz or GHz) differentiates
chips

higher number = faster processing speed
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Megs, Gigs, etc.

Clock speed determines how many
instructions per second the microprocessor
can execute.

A MHz = megahertz; one million
cycles/second

GHz = gigahertz; one billion cycles/second
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Random Access Memory
(RAM)

Transient (erased when power turned off)

Measured in bytes




1 Kilobyte = 210 characters (~1,000 bytes)
1 Megabyte = 220 characters (~1,000,000 bytes)
1 Gigabyte = 230 characters (~1,000,000,000 bytes)
Need 256Mb or 512Mb of RAM


Keep multiple programs & data files in memory
Graphic-intensive programs demand a lot of memory
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Auxiliary Storage

Floppy Disk


Hard (fixed) disk


No longer standard
30 Gb and higher
Removable storage
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CD-R/CD-RW
DVD/DVD-R/DVD-RW
Zip disks
Thumb/jump drives
Tape
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Input Devices
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The Monitor


Resolution is expressed in
picture elements or pixels;
(800 x 600 or 1024 x 768)
The higher the resolution,
the more you can see at
one time.

Larger monitors enable you to
you run at higher resolutions;
e.g., 19” to run 1024 x 768
comfortably

A graphics card speeds
processing
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Lower Resolution (800 x 600)
Displays 20 rows and
8 columns
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Higher Resolution (1024 x 768)
Displays 28 rows and
12 columns
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The Printer

Ink Jet


Laser


Top-of-the line
Four-in-one functionality


Today’s entry level
Printer, scanner, fax, copier
Network printer
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The Digital Camera

An image is stored on a photosensitive
computer chip, which converts the image
to a series of pixels



3 megapixels is now entry-level
4+ megapixels common
There is no film; images are stored in
memory; the more memory the more
pictures

64Mb to 128Mb is suggested
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Internet
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Began as ARPA (Advanced Research
Projects Agency) after Soviets launched
Sputink in 1957
US Government and Universities adopted
ARPANET in the 1970’s and 1980’s to share
information.
ARPANET is a series of connected computer
networks
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World Wide Web
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
Tim Berners-Lee created HTTP as a way of
interacting with the Internet.
The World Wide Web (www) allowed people
to find and share data on the Internet.
Browsers were created to permit ease of
access and file sharing.


Mosaic
Netscape Navigator
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The Internet and World Wide Web

The Internet

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
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Massive network of
networks
Began in 1969 as a
government project
Original network had 4
computers
Connects millions of
computers together
globally

The World Wide Web



Way to access info. over
the internet
Invented by Tim Berners
Lee who wanted to share
academic information
Uses HTTP protocol to
transmit data, allow apps
to function and exchange
business logic
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A message travels the Internet
All that matters is the beginning and ending address
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What is a Web browser?

Software app that allows users to locate and
display Web pages

Common browsers:

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Internet Explorer
Netscape Navigator
Mozilla
*Firefox*
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Acronyms Abound

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
HTTP – HyperText Transfer Protocol is used to
transmit Web documents
HTTPS – Secure protocol for confidential
transactions
HTML – The language in which all Web
documents are displayed
TCP/IP – A suite of protocols that allows
multiple platforms to communicate
ISP – Internet Service Provider
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Important terms to remember

Icon - small picture that represents an object
or program.

Mouseover - An element that triggers a
change in an item when the pointer passes
over it.

www.vl.bryantstratton.edu
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Summary

Understand components of a computer
system for usage

Begin familiarity with common acronyms and
terms

Think about computer as tool for information
gathering
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References
Grauer, Robert and Maryann Barber. Essential Computing
Concepts. New Jersey: Person Prentice Hall, 2004.
Internet Pioneers. http://www.ibiblio.org/pioneers/index.html
Webopedia. http://www.webopedia.com/TERM/H/HTTP.html
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