Chapter 1 is explaining about the information technology, and the user and also the internet. As on the textbook, there are 5 important parts of an information system: people, procedure, software, hardware and also the data. The five component of it explain how the each of the part play its role in creating an interface to the user and ease the use of the information system. As I finished learning this chapter, I can clearly differentiate various types of software, hardware and data. Learned the method of using them which can benefit the users.
Chapter 2- The Internet, the Web and Electric Commerce
After I study and learned the chapter 2, The Internet, The Web, and Electronic Commerce.
I have well understanding in the history, function of internet, web and also electronic commerce. This chapter give me the more deep in knowledge concern the various type of internet, web, internet commerce. During our daily, internet had become a need and must to reach our demand. For example, we use email to communicate with friend abroad, web surfing to gain something important, and also using electronic commerce to buy and sold things over the Internet. Besides that, I also learned about the search engine, type of search engine, and currently which companies provide each of them. After knowing it, I can perform better when I choose the right search engine to fulfill my need. To make the web browsing safer and easier, there are many utilizes can do the functions. For example, an internet security suite can protect our details from being hacked by someone through the internet. At last, this chapter is very important as a foundation to understand the basic concepts of the internet, web and also e-commerce.
Chapter 3- Basic Application Software
Chapter 3 is about the explanations of the basic application software. As general, there are word processors, spreadsheets and also database management systems, presentation graphics and also software suite. Example of the word processors software, there is Microsoft word. It allows us to create text-based document. The spreadsheet software such as Microsoft Excel which was able to manipulate numeric data. The database management systems such Microsoft Access, it can establishes a structure for data storage and management. All the above software replaces the traditional method we used to and do it by electronic way. It can benefit us by more efficiency in doing works, more emphasize on quality and quantity. So that, we can improve and enhance our personal skills to be successful in the future by made use of the new technology.
Chapter 4- Specialized Application Software
Chapter 4 is about the specialized application software. The rapid growths of the specialized application software make us possible to perform advance tasks at home. For example, we can create our own website at anywhere with the availability of computer. We also can create movie using audio and video editing software. Because of that, we can DIY (do it own) and learn the skills. Exists of robot indeed ease our human life. For instance, the robots used in the factory maximize the quantity of production and the mobile robot can move and perform tasks. Conclusion, the specialized application software indeed change our style of style into a multimedia and technology based society.
Chapter 5- System Software
System software works with end users, application programs, and computer hardware to handle many details relating to computer operations. Have 4 kinds of system program that is operating systems, utilities, device drivers, and language translators. Operating systems is coordinate resources, provide an interface between users and the computer, and run programs. Got 3 categories of operating systems that are embedded, network (NOS), and stand-alone (desktop). Windows, Mac OS, and UNIX and LINUX were the examples of operating systems. The utilities perform specific tasks related to managing computer resources. The most essential are troubleshooting (diagnostic), antivirus, uninstall, backup, and file compression. The device drivers allow particular input or output devices to communicate with the rest of the computer system. The language translators convert programming instructions written by programmers into a language that computers can understand and process.
Chapter 6- The System Unit
System unit contains electronic components. Have 4 basic types of system unit is desktop, notebook, tablet PC, and handheld. The system board also can called motherboard is connect all system components and allows input and output devices to communicate with the system unit. It covered with sockets, slots and bus lines. Microprocessor is a single chip that contains the CPU or microprocessor. Microprocessor has 2 basic components that are control unit and Arithmetic-logic unit (ALU). Memory can hold data, instructions, and information. It has 3 types of memory chips that are RAM, ROM, and flash memory. Computers allow users to expand their system by providing expansion slots on their system boards to accept expansion cards. Expansion cards include graphics cards, sound cards, modem cards, network interface cards (NIC; network adapter cards), TV tuner cards, and Express Cards. The bus lines, also called buses, it provide data pathways that connect various system components. Ports are connecting sockets on the outside of the system unit. It separate to standard ports and specialized ports. Have 4 standard ports that is serial, parallel, USB, and firewire. Specialized ports also have 4 that are S/PDIF, HDMI, MIDI and IrDA.
Chapter 7- Input and Output
Input is any data or instructions used by a computer. It translates words, images, and actions into a form a computer can process. Examples of input devices are keyboards, mouse, touch screens, joysticks, light pens, stylus, and scanners. Output is data or information processed by a computer. It translates processed text, graphics, audio, and video into a form human can understand. Examples of output devices are monitors, printers, and speakers. The combination devices combine input and output capabilities. Example of the combination devices is fax machines, multifunctional devices, and internet telephones.
Chapter 8- Secondary Storage
RAM is the primary storage and is volatile while secondary storage provides nonvolatile storage. Secondary storage retains data and information after the computer system is turned off. Important characteristics of secondary storage include media, capacity, storage devices, and access speed. Hard disks, solid-state storage, and optical discs are the type of secondary storage. Hard disks got 2 types that are internal hard disks and external hard drives. Flash memory and USB drives are the types of solid-state storage. Compact disc (CD), digital versatile disc (DVD), and high-definition discs are the types of optical discs. The other types of secondary storage are internet hard drives, floppy disks, and magnetic tape.
References from
Computing Essentials Complete 2010 by Timothy J.O'Leary and Linda I.O'Leary from McGRAW Hill.
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