IP address - Internet Protocol.. basically every computer has one of these addresses..
TCP - Transmission Control Procol - form of sending stuff over the internet
Packet - small block of information sent via TCP
Browser - you're looking at one
HTML - hypertext markup language. Using basic text language plus special tags to designate the text and make it appear different (the markup).
JPEG - Graphic, damn forget what it is.. i learned it in uni
MP3 - Multiplexed sound (i think).. basically encoding sound so the bits that are drowned out by high volumes straight after are thrown away as they are inaudible anyhow.
Bandwidth.. bah.. my brain just broke