What is internet The internet is a network of networks that connects computers all over the world. Computer connected to the internet communicate by using the internet protocol, which slice information into packets that is chunks of data to be transmitted separately and routes them to their destination. The internet has its roots in the US military, which founded a network in in 1969 called the ARPANET, to connect the computers at the some of the colleges and Universities where military research took place. As more and more computer connected, the ARPANET was replaced by the NSFNET, which was run by the National Science Foundation. By the late of 1980 the internet has shed its military and the was available for use by the general public. internet service providers begin offering dial up internet accounts for a monthly fee, giving users access to email and file transfer. In 1989, the world wide web was born and in ...
Single partition allocation, Multiple-partition allocation and Fixed Equal-size partitions in operating system-computer world
Single partition allocation, Multiple-partition allocation and Fixed Equal-size partitions in operating system Single partition allocation In this scheme operating system is residing in law memory and user process are executing in higher memory. Advantages It is simple It is easy to understand and use Disadvantages User job is limited to the size of available memory. It leads to poor Utilization of processor and memory. Multiple-partition allocation It is the simplest method for allocating memory is divided memory into several fixed size partitions. Fixed Equal-size partitions It divides the main memory Into equal number of fixed sized partitions, operating system occupies some fixed portion and remaining portion of main memory is available for user processes. Advantages It supports multi programming. A process whose size is less then or equal to the partitions size can be loaded into any available partition. Disadvantages If a program is big to fit in...