http://dr.limu.edu.ly/handle/123456789/42 2026-04-06T08:18:24Z http://dr.limu.edu.ly/handle/123456789/5226 Main Memory Alfrjane, Mohammed 1-Explain the difference between logical and physical address. 2-Discuss the difference strategies for allocating memory ,first-fit ,best-fit , worst-ft. 3- Define memory fragmentation and differentiate between internal and external fragmentation. 4- Describe hierarchical paging , hashed page and inverted page tables. 2026-03-01T00:00:00Z http://dr.limu.edu.ly/handle/123456789/4889 Information security Osman, Amin E-commerce: Involves the exchange of money for goods and services over electronic networks and encompasses many of an organization’s outward facing processes—such as sales, marketing, order taking, delivery, procurement of goods and services, and customer service—that touch customers, suppliers, and other business partners. Mobile commerce (m-commerce): is the buying and selling of goods and/or services using a mobile device, such as a tablet, smartphone, or other portable device. 2024-03-09T00:00:00Z http://dr.limu.edu.ly/handle/123456789/4886 Network Protocol almsmary, Mohaned PDU “Protocol Data Unit”. A PDU is a set of information that is added or removed by the layers of the communication models and transferred over a network. It describes the different types of data that are transferred between the layers. PDUs typically include “envelope information” in the form of headers and trailers. 2024-04-20T00:00:00Z http://dr.limu.edu.ly/handle/123456789/4885 Network Protocol MOUSA, EHAB network communcations and their elements The exchange of data or information between end-user devices over a network via the trasmittion medium. It defines a set of protocols (rules and standards) that allow communication between devices regardless of their underlaying architecture. 2024-04-16T00:00:00Z