Transcript Slide 1
Mobile Technology
By:
Stephanie Budd
Mike Celentano
Aaron Lastoff
Mobile Computing
The ability to use
technology
“untethered”
Not
continuously
connected to the base
or central network
Requires that mobile
computing activity be
connected wirelessly to
and through the internet
or to and through a
private network
Ties the mobile device to
information through the use
of battery powered,
portable, and wireless
devices
History of Mobile Devices
Radio transmitters and wireless
communications systems were base
stations, operated at fixed locations, with
large antenna towers
1950’s 12 volt automotive electrical
systems gave rise to 12 volt devices such
as two-way radios and mobile rigs
History of Mobile Devices
(Cont.)
Companies such as Motorola sprung
up to support the need for mobile
devices
- Such as taxicab radios, police radios, and
trunk mount systems
Today there is a wide variety of mobile
computing platforms
Mobile and Portable
Mobile
Wearable
- Vehicular
Today there is a fuzzy
boundary between the
two
Many
small handheld
phones and computers
will operate on12 volts
Portable
or
handheld
There is a proposal
to have these two
connect by wireless
ad-hoc networks
Wireless Technology
Day to Day transfer of information is
increasing rapidly and new developments
are continually expanding
Even
so, majority of technology doesn’t
provide as much bandwidth or accessibility as
landlines
Transmission range for wireless is usually
related to the data transmission speed
The further the wireless signal has to travel the
less data it can carry per second
Wireless Technology (Cont.)
Most advanced developments of wireless
broadband deliver downstream data
Satellite communications
Good
transmission rates, but the cost is too
high, typically $1,000 or more
Security
Physical devices along with the data
has to be protected
Difficult problem
Poorly
designed communications
protocols
Raises the issue of how much information
employees are allowed to carry and what
procedures to follow so information
doesn’t get stolen
Mobile Users
Mobileer
One who uses mobile
communications
devices
Three types:
1.
2.
3.
Telecommuters who work
away from office but stay
directly connected to it from
a remote location
Casual telecommuters and
other workers who work a
few days per month outside
the office
Predominantly mobile
employees
A Few Mobile Devices
Laptop computers
PDAs and handheld PCs
Calculators
Pagers
Smart phones and cell phones
Task devices
Bar
code scanners
Laptop Computers
A brief history
The
first laptop?… maybe
1979 by William Moggridge
Used by NASA on space shuttles in the 80’s
340K byte bubble memory
Die cast magnesium case
Folding electroluminescent graphics display screen
1/5 the weight of any model equivalent in performance
Gavilan Computing
First promoted laptop
Manny
Fernandez was the founder of Gavilan
Computers
In 1983, it was considered the first fully
functional laptop computer
Good for executives
The Osborne 1
First true portable computer
Created
by Adam Osborne in 1981
It weighed 24 lbs and cost $1795
5 inch screen
Modem port
Two 5 ¼ floppy drives
Large collection of software
Battery pack
More Laptop Firsts
1981- Epson HX-20
Battery
powered
20 character by 4 line LCD display
Built in printer
1983- TRS-80 Model 100
Created
by Bill Gates & Kazuhiko Nishi
4 lb battery operated portable computer
Flat, more of a lap top design
Even More of Laptop Firsts
1989- Macintosh Portable
Produced
by Apple
Later evolved into Powerbook
How Laptops Work
The Microprocessor
Internal
instructions
stored in memory
Access its own
memory
Receive
instructions
from you
Keyboard
Mouse
Touchpad
Trackball
Display
data to you
Cathode ray monitors
LCD displays
How Laptops Work (cont)
Receive
data through storage devices
Hard drive
Zip drive
CD/DVD drive
Sends
data to:
Printers
Modems
Networks
Powered
by AC or batteries
Disk Drives
Internal hard disk drive
6
to 20GB
Stores:
Operating systems
Application programs
Data files
Laptops
have less space than desktops
What Laptops Can Do
There are many fields
of use for laptops
Education
Presentations
Note
taking
Laboratories
Entertainment
(CD,
DVD, mp3)
Law Enforcement
Astronomy (CCD)
Navigation (GPS)
Business
PDA’s
Personal Digital
Assistant
Serves
as an
electronic
organizer/day planner
Capable of sharing
information with you
computer
An
extension of a
PC… not a
replacement
Manage personal info
Can connect to:
Internet
GPS
Can
run multimedia
software
Uses of PDA’s
Manage Personal
Information
store contact
information (names,
addresses, phone
numbers, e-mail
addresses)
make task or to-do lists
take notes
write memos
keep track of
appointments (date
book, calendar)
remind you of
appointments (clock,
alarm functions)
plan projects
do calculations
keep track of expenses
More Uses For Select Models
Send
or receive e-mail
Do word processing
Play MP3 music files
Play MPEG movie files
Get information (news, entertainment, stock
quotes) from the Internet
Play video games
Integrate things such as digital cameras and
GPS receivers
The First true PDA?
1978- LC-836MN
Made
by Toshiba
Robert Hotto & Judah Klausner
Main purposes
Store memos
Store phone numbers
836 led the way for the future
How Do PDA’s Work
Parts of a PDA
microprocessor
operating
system tells microprocessor
what to do
solid-state memory –
ROM chip
– life
depends on types of
usage
LCD display
batteries
65,536 colors, 160 x
160, 240 x 320
input device
Mini keyboard, touch
screen, stylus
input/output ports
data synchronization
History of Calculators
Origin
First calculator was
invented by the Chinese
called the Abacus
Was first built within the
year 3000 BC
Was widely used by
merchants and clerks.
History
Wilhelm Schickard
First
to build automatic
calculator
Was built in 1623
Called it the
Calculating Clock
History
French Philosopher
Blaise Pascal
Created the Pascaline
in 1642
Uses
Thought
his machine
could save labor and
time.
Also used for taxes
History
Charles Babbage
“Father of Computing”
Had the first
successful automatic
calculator and is
known for his
precision in
engineering
Time Goes By. . .
Scheutz Calculator- 1853
Brunsviga Type A- 1892
Baldwin Calculator -1873
American Arithmometer- 1898
Finally the 1900’s
IBM 1954
Comes
out with all transistor calculator.
1957 release first commercial all transistor
calculator
IBM 608
1961 Bell introduces the Punch/Sumlock
Comptometer - ANITA
Technology Gets Better!
Not only was technology better but cost
more too!
These
machines usually ran $2200- $2500
This included a thirteen digit capacity
Average desktop weight was 55lb-100lbs
Could Add, Subtract, Multiply, Divide, and
sometimes do square roots.
First hand held calculator
Introduced in January 1971
The
Sharp EL-8
Weighed one pound
Used a vacuum fluorescent display
Rechargeable batteries
Sold for $395
Scientific Calculators
First pocket
Hewlett
Packard with the HP-35
Used RPN (Reverse Polish Notation) or
Postfix Notation.
Texas Instruments also introduced the SR10
Upgrades
The scientific calculators were introduced
to Continuous memory.
Data was retained after calculator was shut off.
First calculator capable of symbolic
computations was the Hp-28
First graphing calculator was the Casio
fx700G
Present Day Calculators
In 2002, HP
announces they will
no longer make
calculators anymore
Texas Instruments will
capitalize on their
sleek design of the
new graphing
calculators
The Basic Calculator
Basic Calculators include
Keyboard display
Battery or solar powered
Display- LED lights or
Liquid crystal with 8-10
digit display
Electronic circuits
Ten digits
Equal sign
Four arithmetic functions
Cancel or clear button
On and off
Square root and percents
Can be found in
Cell phones
Pagers
Wrist watches
Local stores
Sophisticated Calculators
Include same functions as basic
Support
Trigonometry
Statistics
Graphs
Algebra
Equation solvers
Financial models
Scientific notation
And holds Games
Leading companies
Sharp
Casio
Hewlett Packard
Texas Instruments
Mobile Technology
By:
Stephanie Budd
Mike Celentano
Aaron Lastoff