Q - 10

Wi-Fi - suggests Wireless Fidelity (Wire Free)

A Wi-Fi enabled device such as a PC, video game console, mobile phone, MP3 player or PDA can connect to the Internet when within range of a wireless network connected to the Internet. The coverage of one or more interconnected access points — called a hotspot.

CD & DVD

CD - DVD

Compact Disk - Digital Volatile Disk
Single Layer - Two Layers
700 MB - 4.7GB (Max 40 GB)

CD thiner than DVD.

InfraRed & Blue Tooth

Infrared technology is what most TV remotes use.
The distance an infrared signal can travel varies based on the strength of the remote, but is usually less than 50 feet for household electronics. In order for an infrared signal to be detected, there must be a direct line of sight between the transmitter (remote) and the receiver (TV). If there is a wall or large object between them, the signal will not pass through it.

Bluetooth, on the other hand, uses a radio frequency, which allows transmission through walls and other objects.

Floppy & Pen drive

Origin : 04-09-09 (3rd Fri)

http://programmerfindings.blogspot.com/search/label/Programming