Mobile computing refers to technology that enables users to access data from any location using portable devices connected to mobile networks. It includes mobile ad-hoc networks (MANETs) that operate without a pre-defined infrastructure, as well as various applications across sectors such as education and military. There are several disadvantages associated with mobile computing, including security, transmission, battery, and connectivity concerns.

1. Mobile Computing

2. What is Mobile Computing?
• technology that provides a portable computing environment
• enables the users to access data and information from any
geographical location
• involves a mobile device, mobile software, and a mobile
communication network

3. What is a mobile device?
• a handheld device that can also
provide connectivity to a network
• without having any physical link
with the network
• can leave one network and join
another and yet remains
connected to the internet
• users can access data anytime,
anywhere

4. Applications
• access data anytime, anywhere
• mobile internet connection
• information access at remote
areas
• military applications
• educational field
• entertainment field
• cloud computing
• GPRS technology

5. What are MANETs?
• MANET: mobile ad-hoc network
• formed by mobile hosts
• similar to a Bluetooth network
• does not necessarily have a pre-defined infrastructure
• multiple paths between tow nodes
• requires routing protocols

6. Routing Protocols in MANETs

7. Disadvantages of Mobile Computing
• Security Concerns
• Transmission Concerns
• Battery Concerns
• Connectivity Concerns

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