Mobile Technology

By:Stephanie BuddMike CelentanoAaron 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- Vehicular

Today there is a fuzzy boundary between the two Many small handheld

phones and computers will operate on12 volts

Portable Wearable 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 expandingEven so, majority of technology doesn’t provide as

much bandwidth or accessibility as landlinesTransmission 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 communicationsGood 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 problemPoorly designed communications protocolsRaises 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. Telecommuters who work

away from office but stay directly connected to it from a remote location

2. Casual telecommuters and other workers who work a few days per month outside the office

3. 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 laptopManny Fernandez was the founder of Gavilan

Computers In 1983, it was considered the first fully

functional laptop computerGood for executives

The Osborne 1

First true portable computerCreated by Adam Osborne in 1981 It weighed 24 lbs and cost $17955 inch screenModem portTwo 5 ¼ floppy drivesLarge collection of softwareBattery pack

More Laptop Firsts

1981- Epson HX-20Battery powered20 character by 4 line LCD displayBuilt in printer

1983- TRS-80 Model 100Created by Bill Gates & Kazuhiko Nishi4 lb battery operated portable computerFlat, more of a lap top design

Even More of Laptop Firsts

1989- Macintosh PortableProduced by AppleLater 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 drive6 to 20GBStores:

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-836MNMade by ToshibaRobert Hotto & Judah KlausnerMain 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

batteries – life depends on types of usage

LCD display 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 Baldwin Calculator -1873

Brunsviga Type A- 1892 American Arithmometer- 1898

Finally the 1900’s

IBM 1954Comes 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- $2500This included a thirteen digit capacityAverage desktop weight was 55lb-100lbsCould Add, Subtract, Multiply, Divide, and

sometimes do square roots.

First hand held calculator

Introduced in January 1971The 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-35Used RPN (Reverse Polish Notation) or

Postfix Notation. Texas Instruments also introduced the SR-

10

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

Battery or solar powered Display- LED lights or

Liquid crystal with 8-10 digit display

Electronic circuits

Keyboard display 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 BuddMike CelentanoAaron Lastoff