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.