หน่วยที่ 4 ซอฟต์แวร์คอมพิวเตอร์ 1-8-63

Computer Software 1

1. Computer Software

2. Computer Software Type 3 What is system software? ➢ Programs that control the operations of the computer and its devices Three types 1.operating systems 2.Translator 3.utility programs What is application software? ➢ Programs that perform specific tasks for users Word Spreadsheet Processing Presentation Database Graphics

3.System Software 4 What is system software? Programs that Three types control operation 1.operating systems 2.Translator of computer 3.utility programs Operating system (OS) (sometimes called the platform) coordinates all activities among computer hardware resources

3.System Software 5 3.1 Operating System (OS) 3.2 Translator is a set of programs Serves to translate the language that coordinates all that programmers write into activities among machine language That the computer computer hardware understands and can follow the instructions devices and allows users to run 3.3 Utility Programs allow the user to application software perform maintenance-type tasks usually related to managing a computer, its devices or its programs

3.1 Operating Systems 6 What is a cross-platform application? ➢ Runs identically on multiple operating systems ▪ Operating system that computer uses is sometimes called the platform Application Operating System/ Operating System/ Operating System/ Operating System/ Platform A Platform B Platform C Platform D

7 3.1 Operating Systems

8 3.1.1 Popular Operating Systems

3.1.2 Operating System Functions 9 What is a user interface? ➢ Controls how you enter data and instructions and how information displays on screen command-line interface menu-driven interface

How to check IP Address Command prompt 10 1. เรียก Command prompt ข้ึนมาโดยเขา้ ไปท่ี Start -> ตรงช่องคน้ หาใหพ้ ิมพ์ “cmd” จากน้นั กด Enter หรือ กดป่ ุม Windows + R พิมพ์ “cmd” แลว้ กด Run 2. หลงั จากเขา้ สู่หนา้ ต่าง Command prompt ใหพ้ ิมพค์ าสง่ั “ipconfig“ 3. หมายเลข IP Adrdress จะระบุในส่วนของ IPv4 Address : 10.3.46.33 << หมายเลข IP Addressเครื่องของเราเอง

How to check IP Address GUI format 11 1 2 3

3.1.2 Operating System Functions 12 What is a graphical user interface (GUI)? ➢ User interacts with menus and visual images such as icons and buttons

3.1.2 Operating System Functions 13 What is single user/ multitasking? ➢ Working on two or more programs that reside in memory at same time ▪ Foreground contains program you are using ▪ Background contains programs that are running but are not in use

3.1.2 Operating System Functions 14 What are other program management features of operating systems? Enables two or multiprocessing more users to run programs Can support two simultaneously or more processors multiuser running programs at same time Has duplicate components such as fault-tolerant computer processors, memory, and disk drives Continues to operate when one of its components fails

3.1.2 Operating System Functions 15 What is memory management? ➢ Optimizing use of random access memory (RAM) ➢ With virtual memory (VM), portion of hard disk is allocated to function as RAM

3.1.2 Operating System Functions 16 How does an operating system schedule jobs? Adjusts schedule Receiving data Sending based on from input device information job’s priority to output device A job is operation Processing Transferring items the processor manages instructions between storage and memory

3.1.2 Operating System Functions 17 What is spooling? ➢ Sending print jobs to buffer instead of directly to printer ➢ Print jobs line up in queue

3.1.2 Operating System Functions 18 What is a device driver? Program that Device With Plug and Play, tells operating system Driver operating system how to communicate automatically configures new with device devices as you install Also called driver them

3.1.2 Operating System Functions 19 How do you install a device driver? Step 1. Open Control Step 2. Click Printers and Step 3. Click Add a Step 4. Add Printer Panel window. Point to Other Hardware link. Point printer link. Follow Wizard searches for Printers and Other to Add a printer link. on-screen instructions. Plug and Play printers Hardware link. on your computer. If it finds any such printers, it installs them. Step 5. If Add Printer Wizard cannot find any Plug and Play printers, you can select type of printer you want to install. An on-screen prompt may ask you to insert floppy disk, CD-ROM or DVD-ROM that contains necessary driver files to complete the installation of printer.

3.1.2 Operating System Functions 20 How does an operating system monitor performance? ➢ Provides program, called performance monitor, that assesses and reports information about system resources and devices

21 3.2 Translator Program 1.UltraEdit 2.Notepad++ 3.Visual Studio Code 4. Edit+

22 3.2 Translator Program Computer language 2 level 1.High-level Language : Assembly Language 2.Low-level Language : C Language, Java Language,BASIC Language, FORTRAN Language

3.3 Operating System Utility Programs 23 What is a utility program? ➢ System software that performs maintenance-type tasks ▪ Also called utility

3.3 Operating System Utility Programs 24 What is a file manager? ➢ Performs functions such as copying, renaming, deleting, and moving files ➢ Image viewer displays contents of graphics file when you double click on it

3.3 Operating System Utility Programs 25 What is an uninstaller? Removes a In Windows XP, program and uninstaller is in Add/Remove all associated files Programs in Control Panel

3.2 Operating System Utility Programs 26 What is a disk scanner? ➢ Detects and corrects problems on hard disk or floppy disk ➢ Searches for and removes unnecessary files

Operating System Utility Programs 27 What is a disk defragmenter? ➢ Reorganizes files and unused space on hard disk so programs run faster fragmented disk file before defragmenting file after defragmenting

3.4 Types of Operating Systems 28 What are three categories of operating systems? Embedded Network Stand-alone

29 3.4.1 Stand-Alone Operating Systems Is an operating system that focuses on and provides services for single users. commonly used for computers used for processing and general work such as home or office computers. - DOS (Disk Operating System) - Windows - Unix - Mac OS X - Linux

3.4.1 Stand-Alone Operating Systems 30 What is DOS (Disk Operating System)? operating system for PC. With a command-line user interface In which the user must enter 1 statement at a time and must remember the correct command format So will be able to work as ordered

3.4.1 Stand-Alone Operating Systems 31 What is Windows ? ➢ Microsoft’s fastest, most reliable Windows operating system

3.4.1 Stand-Alone Operating Systems 32 What is Mac OS ? ➢ Available only for computers manufactured by Apple ➢ Macintosh operating system has been model for most GUIs

3.4.1 Stand-Alone Operating Systems 33 What is UNIX? ➢ Used by power users because of its flexibility and power ➢ Most versions offer GUI ➢ Both a stand-alone and a network operating system

3.4.1 Stand-Alone Operating Systems 34 What is Linux? ➢ Popular, free, multitasking UNIX-type operating system ➢ Open-source softwaree— code is available to public ➢ Both a stand-alone and a network operating system

3.4.2 Network Operating Systems 35 What is a network operating system? ➢ Allows users to share printer, Internet access, files, and NetWare programs on a network Designed for ➢ Administers security client/server networks by establishing user Windows Linux name and password Server 2003 for each user Multi-purpose Upgrade to Windows operating system 2000 Server Solaris ▪ Version of UNIX developed by Sun Microsystems ▪ Specifically for e-commerce applications

3.4.3 Embedded Operating Systems 36 What is an embedded operating system? ➢ Found on most mobile computers, PDAs, and other small devices ➢ Windows CE .NET is scaled-down version of Windows

3.4.3 Embedded Operating Systems 37 What are two operating systems for PDAs? ➢ Windows Mobile 2003 for Pocket PC ➢ Palm OS for Palm, Visor, and CLIE

38 3.4.3 Embedded Operating Systems Android OS

4. Application Software 39 computer program that was developed. To allow the computer system to work in various fields according to the objectives of the user Program development into 2 types 1.Package Software Word Processing Spreadsheet Presentation Database Graphics Software 2. Application Specific