Computer Flashcards
A worldwide system of interconnected networks and computers.
Internet
Interconnection of a group of computers.
Network
Pioneers of the Internet, who invented the Transmission Control Protocol and the Internet protocol
Robert E. Kahn with Vinton Cerf
Are the heart of the Internet
Transmission Control Protocol and the Internet protocol
On Oct. 4, 1957,, the Soviet Union launched the first satellite.
Sputnik
Was developed under the direction of U.S.A.R.P.A in 1969
Arpanet
This project intended to serve the military and researchers with multiple paths of computers linking together for sharing data’s.
Arpanet
It was the world’s first operational oacket switching network and predecessor od the internet.
Arpanet
The first message sent across the network was supposed to have been
“Login”
Electronic mail is introduced in 1972 by ___, a Cambridge, computer scientist.
Ray Tomlinson (E-Mail)
He used the ___ to distinguish between the sender’s name and network name in the email address.
@
In 1984 ____ was established with network addresses identified by extensions
Domain Name System
Writer _____ coins the term “cyberspace”
William Gibson
Fueled by the popularity of the web, the use of the Internet exploded after
1990
In 1990 Tim Berners-Lee of CERN developed a new technique for distributing information on the Internet.
World Wide Web
Kosaic was developed by
Marc Andreeson
It was the first Internet Web Browser
Mosaic
It becomes the dominant navigating system for WWW, which at this time accounts merely 1% of all internet
Mosaic
Divide the decimal number by 2 repeatedly and record the remainders in reverse order
Decimal to Binary
Multiply each binary digit by (2^n) (where (n) is its position from the right starting at 0) and sum the results
Binary to Decimal
Divide the decimal number by 8 repeatedly and record the remainders in reverse order
Decimal to Octal
Multiply each octal digit by (8^n) and sum the results
Octal to Decimal
Divide the decimal number by 16 repeatedly and record the remainders (using A-F for values 10-15) in reverse order
Decimal to Hexadecimal
Multiply each hexadecimal digit by (16^n) and sum the results
Hexadecimal to Decimal
Group the binary digits into sets of 3 (from right to left) and convert each group to its octal equivalent
Binary to Octal
Convert each octal digit into its 3-digit binary equivalent
Octal to Binary
Group the binary digits into sets of 4 (from right to left) and convert each group to its hexadecimal equivalent
Binary to Hexadecimal
Convert each hexadecimal digit into its 4-digit binary equivalent
Hexadecimal to Binary
Convert the octal number to binary then group the binary digits into sets of 4 to convert to hexadecimal
Octal to Hexadecimal
Convert the octal number to binary, then group the binary digits into sets of 4 to convert to hexadecimal.
Octal to Hexadecimal
