Internet
What is the Internet?
A computer network consisting of interconnected networks that use standardized, open (NONPROPRIETARY) communication protocols
What is a protocol?
A protocol is a standard set of rules that everyone agrees on. They are OPEN or NONPROPRIETARY.
What is the World Wide Web?
A system of web pages, programs and files This is governed by the HTTP.
What is parallel computing?
A program is broken into smaller sequential computing operations using multiple PROCESSORS
What is an open network?
Any computing device can join as long as it follows the rules (protocol).
What are the two major protocols?
TCP/IP- TCP governs how packets are created and reassembled, while the IP moves packets to their destinations.
UDP - Offers a way to deliver a faster stream of information by eliminating error checking, which TCP/IP does. - does not guarantee delivery or order of packets
What is HTTP?
HTTP - (hypertext transfer protocol) protocol, which controls how web page data is transmitted (enables communication between web browsers)
What are the advantages of parallel computing?
+ helps save a lot of time
+ Scales more effectively
What is a computing device?
A computing device is a physical machine that can run a program. They connect with other computing devices to form a computing system. A computing network is a group of computing devices that can share resources.
What is IPv4?
IPv4: split into 4 numbers, all ranging 0-255, 2 to the 32 possible values
What is scalability?
The capacity for the system to change in size and scale to meet new demands
What is sesequential computing?
A traditional method of executing instructions in a sequential order
What is a computing system?
A group of computing devices and programs working together for a common purpose
What is IPv6?
These are hexadecimal numbers. 2 to the 128 possible values
What is fault tolerance?
Fault tolerance is where it can function properly even in the event of one part failing
What is distributed computing?
Multiple DEVICES are used to run a program, which allows users to share information
What is a computing network?
A computing network is a group of computing devices that can share data with each other.
What are packets?
Packets contain a section of the data you want to send and comes with a header that contains metadata (data about data) to tell the routers where the packet is from, where it’s going and how it should be reassembled.
What is redundancy?
The inclusion of extra components that can be used to mitigate the failure of a system of other components that fail
What are advangtages of distributed computing?
allows people to solve problems that they wouldn’t be able to due to lack of storage or too much processing time