Database Management Systems.
A DBMS program helps organization use their integrated collections of data records and files known as databases. It allows different user application programs to easily access the same database. For example, a DBMS makes it easy for an employee database to be accessed by payroll, employee benefits, and other human resource programs.
A DBMS program helps organization use their integrated collections of data records and files known as databases. It allows different user application programs to easily access the same database. For example, a DBMS makes it easy for an employee database to be accessed by payroll, employee benefits, and other human resource programs.
A DBMS also simplifies the process of retrieving information from databases in the form of displays and reports. Instead of having to write computer programs to extract information, end users can ask simple questions in a query language. Thus, many DBMS packages provide fourth-generation language (4GLs) and other application development features. Examples of popular mainframe and midrange packages are DB2 by IBM and Oracle 8 by Oracle Corporation.
Other System Management Programs.
Several other types of system management software are marketed as separate programs or are included as part of an operating system. Utility programs, or utilities, are an important example. Programs like Norton Utilities perform miscellaneous housekeeping and file conversion functions.
Other System Management Programs.
Several other types of system management software are marketed as separate programs or are included as part of an operating system. Utility programs, or utilities, are an important example. Programs like Norton Utilities perform miscellaneous housekeeping and file conversion functions.
Examples include data backup, data recovery, virus protection, data compression, and file defragmentation. Most operating systems also provide many utilities that perform a variety of helpful chores for computer users.
Other examples of system support programs include performance monitors and security monitors. Performance monitors are programs that monitor and adjust the performance and usage of one or more computer systems to keep them running efficiently, Security monitors are packages that monitor and control the use of computer systems and provide warning messages and record evidence of unauthorized use of computer resources.
Other examples of system support programs include performance monitors and security monitors. Performance monitors are programs that monitor and adjust the performance and usage of one or more computer systems to keep them running efficiently, Security monitors are packages that monitor and control the use of computer systems and provide warning messages and record evidence of unauthorized use of computer resources.
A recent trand is to merge both types of programs into operating systems like Microsoft’s Windows NT Server, or into system management software like Computer Associates’ CA-Unicenter, that can manage both mainframe systems and servers in a data centre.
