This is because of the big selection of businesses generating Microsoft Windows and thus, PCs can vary from low end laptop’s for typical home users, or high end ones that cater for gamers or programmers. These PCs may also be easily self upgraded by replacing the RAM Random Access Memory for velocity or the hard drive for garage Mac vs PC,” n. d. Notwithstanding that entirely Apple designs Macs, those computer systems also are upgradable even though less in contrast with PCs. To substitute the hard force on a Mac, a typical computing device user might require the assistance of a technician due to the complicated measures concerned. The three main database fashions that have been built ago frequently used in handling data in a lot of organizations encompass hierarchical, community, relational database and object orientated relational database models. In this look at, the relational database model for database development is particular rather than hierarchical and network models due to its strengths that include allows garage of data in standardized format and allows for clients to simultaneously get entry to consistent data, requires less memory due to storage of data free of redundancy and incorporating data integrity features in its layout that which are appropriately enforced as compared to the other fashions. The database building system is systematically carried in two predominant tiers that contain logical design and actual layout 13. The entity relation diagram is depicted in Figure 6. The significance of the entity relationship diagram is to relate and validate the relationships between the relations that may assist in making choice on even if additional members of the family or discarding members of the family is applicable. The family members that are perpetually discarded are ones which have one to at least one courting while the family members with many to many relationships are modelled to consist of extra relations because the many to many could lead on to undesirable consequences within the layout of the database.