Wireless, Mobile Computing, and Mobile Commerce
is a term used to describe telecommunications in which electromagnetic waves (rather than
some form of wire or cable) carry the signal between communication devices (computer, PDAs, cell
refers to a real-time, wireless connection between a mobile device and other
computing environments, such as the internet or an intranet.
Mobile Commerce (M-Commerce)
refers to e-commerce (EC) transactions that are conducted in
wireless environment, especially via the internet.
Pervasive Computing (Ubiquitous Computing)
means that virtually every object has processing
power with wireless or wired connections to a global network.
Wireless technologies include both
wireless transmission media
are small enough to easily carry or wear, have sufficient computing power to perform
productive tasks and can communicate wirelessly with the Internet and other devices.
of wireless device:
productive use of time
that was formerly wasted (work in cars or public
Work locations become much
Enable to allocate working time around personal and professional obligations.
Wireless Application Protocol (WAP)
is the standard that enables wireless devices with tiny display
screens, low bandwidth connections and minimal memory to access Web-based information and
are internet browsers with a small file size that can work within low-memory
constraints of wireless devices and the low bandwidths of wireless networks.
include pages, email handhelds, PDAs, cellular phones, and smart phones.
is a one-way, wireless messaging system; it alerts the user when it receives an incoming
, such as the
, have a small display screen and a keypad for
typing short message. E-mail Handhelds help to keep in touch with clients and the office.
use radio wave to provide two-way communication. The cell phone communicates
with radio antennas (towers) placed within adjacent geographic areas call cells. Cellular
technology, nowadays provides high transmission speeds and richer features (SMS, 3G, Video,
WWW), has progressed through four stages:
First generation (1G) – Analog signals and low bandwidth.
Second generation (2G) – Digital Signals for voice communication. Speed up to 10
2.5 G – Digital Signals for voice communication. Speed up to 144 Kbps.
Third generation (3G) – Digital Signals for voice communication. Speed up to 128
Kbps (in car), 384 Kbps (walking), and 2 Mbps (fixed).
Personal Digital Assistants (PDAs)
are small, handheld computers that can transmit digital
communications. PDAs provide electronic schedulers, address books, emails service,
wireless internet access, camera, and voice communication (some only).