Mobile Computing

Definition

• A technology that allows transmission of data, via a computer, without having to be connected to a fixed physical link.

( Koudounas and Iqbal)

Introduction

• Emerging technology with intercross of many subjects.

• Human–computer interaction to be transported during normal usage.

• Hotspot in computing technology sector• One of the four far-reaching implications technol

ogies.• New technology grwoing up with mobile commu

nication, Internet, database, distributed computing...

Purpose

• Provide any clients at any time in any location with useful, accurate and timely information.

• Altering people's life style and working method drastically.

Aspects

• Mobile communication

• Mobile hardware

• Mobile software

Mobile communication

• Communication between moving body, or moving body and fixed objects.

• Features:– Mobility. – Complicated to propa

gate radio wave.– Severe noise and inte

rference. – Complex system and

network configuration.

Mobile hardware

Mobile software

Mobile software

• Run on handheld computers, PDAs, EDAs, smartphones and cellphones.

• Popularity of these platforms has risen considerably since the first handheld computers invented in 1980s.

Mobile computing

• Portable technologies.• Internet access on the

go.• Laptops, PDAs, stand

ard cell phones. • Indispensable way of l

ife.

WiFi

• Common, cheap

• Radio waves used to broadcast Internet signal from wireless router.

• Anyone can jump on if not encrypted.

• Commonly used in public places to create hotspot.

• Hotspot must be located, stay put within broadcasting range.

Cellular broadband

• Cellular modem or AirCard used to connect to cell towers.

• AirCard fits into PC Card or ExpressCard slot, delivering Internet access on the go.

• Needn’t remain stationary as signal remain strong.

• Cell phones and PDAs also use it. • Access considered premium service which

increases cost.

Others

• Cloud computing.

• Use website services from mobile computers.

• Access to a company’s VPN by tunneling through Internet.

Importance

• Increasing business value.

• Staying connected.

• Email to Facebook, Skype to socializing sites, cloud computing to VPNs,

• No longer do without mobile computing anymore.