No, McAfee virus protection is not hardware. Instead, it is a software program. Hardware is the physical parts of a computer, but software is computer code. So an antivirus program is software, not hardware.
1 OPERATING SYSTEM An operating system is a group of computer programs that coordinates all the activities among computer hardware devices. It is the first program loaded into the computer by a boot program and remains in memory at all times. In other words, it’s what runs your computer 2 Functions of an Operating system 3 4. File Management the storage of file of various storage devices to another. It also allows all files to be easily changed and modified through the use of text editors or some other files manipulation routines. 5. Establishment and enforcement of a priority system. it determines and maintains the order in which jobs are to be executed in the computer system. 6. Automatic transition from job to job as directed by special control statements. 7. Interpretation of commands and instructions. 8. Coordination and assignment of compilers, assemblers, utility programs, and other software to the various user of the computer system. 9. Facilities easy communication between the computer system and the computer operator (human). It also establishes data security and integrity. 4 Components of Operating system 5 4 Types of Operating System 6 Real time Operating System (RTOS) 7 Single-User, Single Task 8 Single-User, Multi-Tasking 9 Multi-User A multi-user OS allows many users to take advantage of the computer's resources, simultaneously The OS must make sure that the requirements of the various users are balanced, and that the programs they are using each have sufficient and separate resources so that a problem with one user doesn't affect any of the other users. Examples: Linux, Unix, VMS and mainframe OS, such as MVS 10 Examples of Operating System 11 Advantages of Operating System 12 Disadvantages of Operating System
|