Software is detailed instructions (computer programs) used to direct the operation of the computer to perform a particular task.

 

4.1 System Software

1.         The operating system is software that supervises and controls the hardware. It is the link or the interface between the hardware and the application software. Examples of operating system software is DOS, Unix, Windows and Linux.

2.         Utility software are programs that give the user more control over files and virus protection.

True or False? Write out the true sentences and change the false sentences so that they are true.

 

A computer program is software

Software controls the movement of data within a computer system

Most programmers write their instructions using machine code

Language translators change machine code into high level language programs

The operating system is the software that supervises and controls the hardware

Serial multitasking uses several processors so that multiple programs are working at the same time

Single-tasking requires computers with more power and speed than multitasking

Utility programs perform a variety of tasks that give the user greater control over the computer system

File handling allows files to be copied, deleted, merged, sorted and updated

Modern application software does not include built-in utility programs

    

 

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