Explain the following terms: (10 Marks) i. Computer operating system ii. Device driver iii. Process control block iv. Critical resource v. Context switch February 24, 2016 Read More »
It is the work of the operating system to co-ordinate how the memories are used. To achieve this goal the memory manager therefore, keeps a memory hierarchy. Briefly discuss the criteria or the basis used to determine and maintain the hierarchy February 24, 2016 Read More »
Directories are used to logically cluster files and make them easier to access. The files within a directory hierarchy can be specified by giving its path name. Using a diagram discuss the two ways of specifying a path name February 24, 2016 Read More »
File systems manage the storage and retrieval of information from disks by use of files, making this information persistent. Outline the three essential requirements for long storage. February 24, 2016 Read More »
Computer hardware is made up of the input and output devices, explain any three components that must be included in the operating system to be able to achieve the efficiency of the input/output device in the computer systems February 24, 2016 Read More »
Briefly describe how the base and limit registers are used to solve the relocation and protection problems. February 24, 2016 Read More »
Memory manager has a way of responding to a page fault when it occurs. Discuss the functions of a memory management unit, articulating the decisions it makes to properly respond to page faults. February 24, 2016 Read More »
a. For each of CPU scheduling algorithms below, briefly describe to what extent each meets the qualities of a good scheduling algorithm. February 24, 2016 Read More »
. Seek operation is a very important concept in file management. Using an example explain why seek operation is not required in sequential access, what is its relevance February 24, 2016 Read More »