BTM Guilliams Exam 1 Review – Study Guide, Practice Questions & Course Prep
5 Components of an IT system - ✔✔Hardware, Software, Data, Procedures, People
6 Levels of data hierarchy - ✔✔Bit, Byte, field, record, file, database
5 dimensions in data hierarchy - ✔✔Data, Information, Knowledge, Understanding, Wisdom
Idea of data as a uniquely human construction and interpretation - ✔✔All data is biased
Metcalfe's Law - ✔✔the value of a network is equal to the square of the number of users
connected to it
Moore's Law - ✔✔the cost of data processing, communications, and storage is essentially zero
COST CONSTANT
IEEE - ✔✔Institute of Electrical and Electronics Engineers
802.3 - ✔✔Ethernet
802.11 - ✔✔Wifi
What type of communication is Bluetooth - ✔✔NFC (near field communications)
5 Major Milestones in the internet timeline - ✔✔1972 - Internet is created, 1982 - TCP/IP
Protocol invented, 1989 - Worldwide Web, 1991 - Internet is globally accessed, 1994 - Javascript
, Internet - ✔✔Globally interconnect network of networks using tcp/IP protocols
World Wide Web - ✔✔A system for finding information on the Internet through the use of
linked documents.
Difference between Internet and World Wide Web - ✔✔WWW is the pages we see while the
internet is the network things are being sent on
HTML - ✔✔Hypertext Markup Language
HTTP - ✔✔Hypertext Transfer Protocol
Who invented the internet? - ✔✔Vinton Cerf and Robert Kahn
Who created the World Wide Web? - ✔✔Tim Berners-Lee
TCP (Transmission Control Protocol) - ✔✔a connection-oriented communications protocol that
facilitates the exchange of messages between computing devices in a network.
IP - ✔✔The Internet Protocol (IP) is a set of standards for addressing and routing data on the
Internet.
DNS (Domain Name System) - ✔✔The Domain Name System is the hierarchical and
decentralized naming system used to identify computers, services, and other resources
reachable through the Internet or other Internet Protocol networks.
domain name - ✔✔The domain name functions as a link to the IP address.
5 Components of an IT system - ✔✔Hardware, Software, Data, Procedures, People
6 Levels of data hierarchy - ✔✔Bit, Byte, field, record, file, database
5 dimensions in data hierarchy - ✔✔Data, Information, Knowledge, Understanding, Wisdom
Idea of data as a uniquely human construction and interpretation - ✔✔All data is biased
Metcalfe's Law - ✔✔the value of a network is equal to the square of the number of users
connected to it
Moore's Law - ✔✔the cost of data processing, communications, and storage is essentially zero
COST CONSTANT
IEEE - ✔✔Institute of Electrical and Electronics Engineers
802.3 - ✔✔Ethernet
802.11 - ✔✔Wifi
What type of communication is Bluetooth - ✔✔NFC (near field communications)
5 Major Milestones in the internet timeline - ✔✔1972 - Internet is created, 1982 - TCP/IP
Protocol invented, 1989 - Worldwide Web, 1991 - Internet is globally accessed, 1994 - Javascript
, Internet - ✔✔Globally interconnect network of networks using tcp/IP protocols
World Wide Web - ✔✔A system for finding information on the Internet through the use of
linked documents.
Difference between Internet and World Wide Web - ✔✔WWW is the pages we see while the
internet is the network things are being sent on
HTML - ✔✔Hypertext Markup Language
HTTP - ✔✔Hypertext Transfer Protocol
Who invented the internet? - ✔✔Vinton Cerf and Robert Kahn
Who created the World Wide Web? - ✔✔Tim Berners-Lee
TCP (Transmission Control Protocol) - ✔✔a connection-oriented communications protocol that
facilitates the exchange of messages between computing devices in a network.
IP - ✔✔The Internet Protocol (IP) is a set of standards for addressing and routing data on the
Internet.
DNS (Domain Name System) - ✔✔The Domain Name System is the hierarchical and
decentralized naming system used to identify computers, services, and other resources
reachable through the Internet or other Internet Protocol networks.
domain name - ✔✔The domain name functions as a link to the IP address.
