Essays Tagged: "telephone system"

Hackers: Technological Wizards

wants to learn only the minimal amount necessary.(Kevin Mitnick 145).Phone phreaks use more of the telephone system than they do computers. Christian Hughes said 'Phreaks can clone cellular phone sig ... are easiest for hackers to access can be found via war dialers. War dialers are programs that scan telephone exchange looking for modern tones. When one is found, the modem phone number is saved.When ...

(9 pages) 178 1 3.0 Feb/1996

Subjects: Science Essays > Computer Science > Internet and networking

Data Communications: Wide Area Networks

Computers connected to a wide area network are often connected through public networks, such as the telephone system. They can also be connected through leased lines or satellites. An example of a wid ... device that interprets digital and analog signals, enabling data to be transmitted over voice-grade telephone lines. At the source, digital signals are converted to a form suitable for transmission ov ...

(8 pages) 201 1 4.6 May/2004

Subjects: Science Essays > Computer Science > Computer Ethics

Benefits for Companies using VoIP -CSI 120-74 Business Data Networks and Communications

for Companies using VoIPVoIP provides integrated voice and data application. IP Telephony merges a telephone system with the computer network providing many advantages for a business ranging from red ...

(2 pages) 126 1 3.5 Nov/2004

Subjects: Science Essays > Computer Science > Internet and networking

Why did antagonism occur between the USA and Cuba between 1959 and 1961?

nd Cuba were really close, nearly all its industry, electricity production, railways and the entire telephone system were owned by the Americans. What happened that had changed their relation so rapid ...

(4 pages) 36 0 1.0 Nov/2005

Subjects: History Term Papers > North American History


kypeOn October 14, 2005, eBay acquired for €(euro)1.9 billion in cash and stock a Peer-to-Peer telephone network program called Skype. What differentiates Skype from standard telephone communicat ... ted through other Skype peers on the network, making it easier and much less costly compared to the telephone system which operates on a more complex and costly centralised infrastructure.Skype is of ...

(5 pages) 61 0 0.0 May/2007

Subjects: Science Essays > Computer Science > Internet and networking

Hackers Thought

g; Mark Abene, who encouraged thousands of teenagers to study the internal workings of our nation's telephone system; Robert Morris, who unleashed an internet worm in 1988 which infected 6,200 systems ...

(6 pages) 22 0 3.0 Oct/2001

Subjects: Businesss Research Papers

WAN Paper

ive ways to access the internet because the equipment usually needs to be bought.When talking about telephone lines, we start getting into analog versus digital signals and degradation over longer dis ... ices, but when talking about larger corporations or the government, most use public systems such as telephone lines or satellites. Usually, when talking about larger companies and going through a publ ...

(6 pages) 35 0 0.0 Oct/2008

Subjects: Science Essays > Technology