5. software, operating system & application software

This is slides are about the software, that what is the software, and what are their types. It also covers the Operating System and it's features

1. Software, Operating System & Application Software BY NAJEEB SAFI 4/19/2021 CONTACT: [email protected] 1 NAJEEB SAFI

2. NAJEEB SAFI Software Software is the collection of instruction to solve a specific problem. Software is a program which is written for solving a problem. Two types of software. System Software Application Software 4/19/2021 CONTACT: [email protected] 2

3. NAJEEB SAFI 1. System Software The system software is the collection of programs designed to operate, control, and extend the processing capabilities of the computer system itself. System software is generally prepared by the computer manufactures. These software products comprise of program written in low level languages, which interact with the hardware at a very basic level. 4/19/2021 CONTACT: [email protected] 3

4. NAJEEB SAFI Operating System Operating System is a common example of system software. Operating System is a program with the following features: OS is a program that acts as an interface between the software and the computer hardware. It is an integrated set of specialized programs used to manage overall resources and operation of the computer. It is specialized software that controls and monitor the execution of all other programs that reside in the computer, including application program and other system software. 4/19/2021 CONTACT: [email protected] 4

5. NAJEEB SAFI Operating System 4/19/2021 CONTACT: [email protected] 5

6. NAJEEB SAFI Objective Of Operating System. The objectives of operating system are: To make the computer system convenient to use in an efficient manner. To hide the details of the hardware resources from the users. To provide users a convenient interface to use the computer system. To act as an intermediary between the hardware and its users, making it easier for the users to access and use other resources. To manage the resources of a computer system. To keep track of who is using which resource, granting resource requests, and mediating conflicting requests from different programs and users. To provide efficient and fair sharing of resources among users and programs. 4/19/2021 CONTACT: [email protected] 6

7. NAJEEB SAFI Characteristics of OS Here is list of some of the most prominent characteristics of OS: Memory Management : keep track of the primary memory, i.e. what part of it is in use by whom, what part is not in use, etc. and allocates the memory when a process of program request to it. Processor Management : Allocates the processor (CPU) to a process and deallocates the processor when it is no longer required. Device Management : keep track of all the devices. This is also called I/O controller that decides which process gets the device, when, and for how much time. File Management : Allocates and de-allocates the resources and decides who gets the resources. Security : Prevents unauthorized access to programs and data by means of passwords and other similar techniques. 4/19/2021 CONTACT: [email protected] 7

8. NAJEEB SAFI Characteristics of OS Job Accounting : keeps track of time and resources used by various jobs and/or users. Control Over System Performance : Records delays between the request for a service and from the system. Interaction With Operators: Interaction may take place via the console of the computer in the form of instructions. The operating system acknowledge the same, does the corresponding action, and informs the operation by a display screen. Error Detecting Aids : Production of dumps, traces, error messages, and other debugging and error-detecting methods. 4/19/2021 CONTACT: [email protected] 8

9. NAJEEB SAFI Characteristics of OS Coordination between other software and users : coordination and assignment of compilers, interpreters, assemblers, and other software to various users of the computer system. 4/19/2021 CONTACT: [email protected] 9

10. NAJEEB SAFI 2. Application Software Application software is a program or group of program designed for end users. All software application prepare in the computer lab can come under the category of application software. Application software may consist of single program, such as Microsoft’s notepad for writing and editing simple text. It may also consist of a collection of programs, often called software package, which work together to accomplish a task, such as spreadsheet package. 4/19/2021 CONTACT: [email protected] 10

11. NAJEEB SAFI Examples of Application Software Payroll Software Student Record Software Inventory Management System Income Tax Software Railway Reservation Software Microsoft Office Suite Software Microsoft Word Microsoft Excel Microsoft PowerPoint 4/19/2021 CONTACT: [email protected] 11

12. NAJEEB SAFI Features Of Application Software Close to the users Easy to design More Interactive Slow in speed Generally written in high level language Easy to understand Easy to manipulate and use Bigger in size and requires large storage space. 4/19/2021 CONTACT: [email protected] 12

13. NAJEEB SAFI 4/19/2021 CONTACT: [email protected] 13 NAJEEB SAFI 4/19/2021 CONTACT: [email protected] 13 THANK YOU