lesson 3 basic computer part II- software.pptx

Computer

1. LIVING IN THE IT ERA

2. Lesson 3 Basics! Computer Aspects and Fundamentals Computer Software

3. Software A Software is known as a collection of computer programs and related data that provides the instructions which tells a computer what to do and how to do it. It is the set of instructions that a piece of hardware executes to carry out a specific task for you. Programs contain units called files . Transferring a program into the computer’s memory is called loading . Once loaded into memory the program’s instructions are carried out or executed .

4. Types of Software System software – All programs that help the computer function properly. Application software – All the programs you use to perform a task such as writing a letter or browsing the World Wide Web.

5. A. System Software This is responsible for managing a variety of independent hardware components to work together in harmony.

6. B. Operating System (OS) The OS is a system software that manages computer hardware and software resources and provides common services for computer programs. For hardware functions such as input and output and memory allocation, the Operating System acts as an intermediary between programs and the computer hardware. The operating system : Provides support for running application software. Coordinates the various functions of the computer’s hardware. Command-line interface– Users type instructions at the keyboard, one line at a time Graphical user interface (GUI)– Users choose items from menus by using a pointing device to click on icons which represent resources and commands Types of Operating Systems

7. C. Utility Software This computer system software is used to analyze, configure, monitor, or help maintain a computer system. System utilities: Are programs for optimizing computer performance.

8. D. Application Software Applications are designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user. It is a set of programs that allows the computer to perform a specific data processing job for the user. Application software includes all programs that enable us to use the computer in a useful way. Custom software is developed for specific needs. Packaged software is produced for the mass market.

9. CATERGORIES OF APPLICATION SOFTWARE Business Software Graphic & Multimedia Home/Personal/Education Communication Video Games Firmware These are computer software that provide the low-level control for a particular device's specific hardware

10. E. Programming Software Programming Software usually refer to relatively simple programs such as compilers, debuggers, interpreters, linkers, and text editors, and are intended to assist a programmer in writing computer programs.

11. Classifications of System Software Multi-user – allows two or more users to run programs at the same time   Multi-processing – supports running a program on more than one CPU Multi-tasking – allows more than one program to run concurrently Multi-threading – allows different parts of a single program to run concurrently Real time – responds to input instantly

12. Classifications of Application Software Business Application – software dedicated for business use. These are canned software that have been designed in accordance with the great principles of business concepts. Examples: word processors, spreadsheets, databases Personal Application – designed to take away drudgery out of our personal chores and even make those chores fun. Examples: email, banking, address books, calendar Entertainment Application – designed for entertainment purposes, embedded with educational objectives and goals to make challenge more entertaining Examples: Computer games, media player Utility Application – software that helps you manage and maintain your own computer. Aside from operating system, utility application helps to achieve a specific task. Example: Disk Defragmenter – makes sure your computer is using its disk optimally so you need to defragment once in a while Disk Compression – reduce the size of the files so that they can consume less disk space.

13. End of slides in lesson 3 part II Computer Software