csc_104_fundamentals of computing

 Network Protocol- it is the rules that determine how data is transmitted between different devices in the same network. Application layer it is used by end user software such as browsers and email clients. it provide protocols that allow software to send and receive information and give meaningful data to users. examples: Hypertext Transfer Protocol(HTTP) it is used to deliver data(HTML files, images files, query results etc.) on the World Wide Web. Hyper-involved documents and files. Transfer- files can move over the World Wide Web from one networked device to another.                                             2.  Hypertext Transfer Protocol Secure(HTTPS) it is the combination of Hypertext Transfer Protocol (HTTP) and Secure Socket Layer(SSL)/ Transport Layer Security(TLS) 3. File Transfer Protocol(FTP) it is standard network protocol used for the transfer of ...

Network Model  / Protocol protocol- is the set of rules that governs the communication between computer on nertork. rules includes: 1. guidelines  2. access method 3. allowed physical method 4. types of cabling 5. speed of data transfer. layer - divide the task into sub-task and then solve each sub-task independently. OSI(Open System interconnection Reference Model)- is the description for layered communication and computer network protocol  communication and computer network protocol and transmission design. it divides data movement into seven layer from to to bottom, that are: application layer is the responsible to identify communication methods to allow users and hosts to interact with the software applications available on the internet. this layer help to identify communication partner, and synchronizing communication. this layer allows users to interact with other software application. 2. presentation layer  this layer establishes a context between Application ...

  Network Communication 1kbps=1 thousand bits Kilobits per second is shortened to kb/s, Kbps or kbps 1kb/s =1000bits  1Kb/s = 1024 bytes ISP -internet service provider common confusion between the KBps and  kbps is when it comes to bandwidth and download speed. data transfer is calculate in kbps. file size measure in Kilo Bytes and download is calculated based on how many Bytes per second are downloaded. KBps and kbps are not interchangeable. to calculate max download speed of a "X kbps"                 Download KBPS speed= (Kbps value*1000/8)/1024 Components of networks NIC Switch Cable hub router                  Hardware Components Network interface card Its is a circuit board installed in a computer that provides a dedicates networks connection interface controller. Network medium - cable plugs into the NIC and make the connection between a computer and rest of the network  ...