Home Area Network (HAN)

Home Area Network (HAN)

Definition - What does Home Area Network (HAN) mean?
       A home area network (HAN) is a network that is deployed and operated within a small boundary, typically a house or small office/home office (SOHO). It enables the communication and sharing of resources (like the Internet) between computers, mobile and other devices over a network connection.

       As a type of IP-based local area network (LAN), a HAN may be wired or wireless. In a typical implementation, a HAN consists of a broadband Internet connection that is shared between multiple users through a vendor/third party wired or wireless modem.
       User host devices may be standard computers, laptops, mobiles and tablets. The modem generally has network switch capabilities that provide wired LAN ports or wireless connectivity to host users.
       A HAN also may include other devices, such as a fax, printer, scanner or small network attached storage that is shared by all host devices.

Data from
http://www.techopedia.com

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Information

Information

       Information is that which informs, i.e. that from which data can be derived. Information is conveyed either as the content of a message or through direct or indirect observation of some thing. That which is perceived can be construed as a message in its own right, and in that sense, information is always conveyed as the content of a message. Information can be encoded into various forms for transmission and interpretation. For example, information may be encoded into signs, and transmitted via signals.
       In Thermodynamics, information is any kind of event that affects the state of a dynamic system that can interpret the information.

       Information resolves uncertainty. The uncertainty of an event is measured by its probability of occurrence and is inversely proportional to that. The more uncertain an event, the more information is required to resolve uncertainty of that event. The bitis a typical unit of information, but other units such as the nat may be used. Example: information in one "fair" coin flip: log2(2/1) = 1 bit, and in two fair coin flips is log2(4/1) = 2 bits.
       The concept that information is the message has different meanings in different contexts.Thus the concept of information becomes closely related to notions of constraint, communication, control, data, form,instruction,knowledge, meaning, understanding, mental stimuli, pattern, perception, representation, and entropy.

Information sign

Information design

       Information design is the practice of presenting information in a way that fosters efficient and effective understanding of it. The term has come to be used specifically for graphic design for displaying information effectively, rather than just attractively or for artistic expression. Information design is closely related to the field of data visualization and is often taught as part of graphic design courses.

Example of information design

Data from

http://en.wikipedia.org/wiki/Information

http://en.wikipedia.org/wiki/Information_design

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Nutchanon Plaithoa

IP address

IP address

       An Internet Protocol address (IP address) is a numerical label assigned to each device (e.g., computer, printer) participating in a computer network that uses the Internet Protocol for communication.An IP address serves two principal functions: host or network interface identification and location addressing. Its role has been characterized as follows: "A name indicates what we seek. An address indicates where it is. A route indicates how to get there."
       The designers of the Internet Protocol defined an IP address as a 32-bit number and this system, known as Internet Protocol Version 4 (IPv4), is still in use today. However, due to the enormous growth of the Internet and the predicted depletion of available addresses, a new version of IP (IPv6), using 128 bits for the address, was developed in 1995.IPv6 was standardized as RFC 2460 in 1998,and its deployment has been ongoing since the mid-2000s.
       IP addresses are binary numbers, but they are usually stored in text files and displayed in human-readable notations, such as 172.16.254.1 (for IPv4), and 2001:db8:0:1234:0:567:8 :1 (for IPv6).
      The Internet Assigned Numbers Authority (IANA) manages the IP address space allocations globally and delegates five regional Internet registries (RIRs) to allocate IP address blocks to local Internet registries (Internet service providers) and other entities.

Decomposition of an IPv4 address from dot-decimal notation to its binary value.

Decomposition of an IPv6 address from hexadecimal representation to its binary value.

Data From

http://en.wikipedia.org/wiki/IP_address

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Nutchanon Plaithoa

Computer Network

Computer Network

Definition - What does Computer Network mean?

       A computer network is a group of computer systems and other computing hardware devices that are linked together through communication channels to facilitate communication and resource-sharing among a wide range of users. Networks are commonly categorized based on their characteristics.

Local Area Network (LAN)

Definition - What does Local Area Network (LAN) mean?
       A local area network (LAN) is a computer network within a small geographical area such as a home, school, computer laboratory, office building or group of buildings.
       A LAN is composed of inter-connected workstations and personal computers which are each capable of accessing and sharing data and devices, such as printers, scanners and data storage devices, anywhere on the LAN. LANs are characterized by higher communication and data transfer rates and the lack of any need for leased communication lines.

Metropolitan Area Network (MAN)

Definition - What does Metropolitan Area Network (MAN) mean?
       A metropolitan area network (MAN) is similar to a local area network (LAN) but spans an entire city or campus. MANs are formed by connecting multiple LANs. Thus, MANs are larger than LANs but smaller than wide area networks (WAN).
       MANs are extremely efficient and provide fast communication via high-speed carriers, such as fiber optic cables.

Wide Area Network (WAN)

Definition - What does Wide Area Network (WAN) mean?
       A wide area network (WAN) is a network that exists over a large-scale geographical area. A WAN connects different smaller networks, including local area networks (LAN) and metro area networks (MAN). This ensures that computers and users in one location can communicate with computers and users in other locations. WAN implementation can be done either with the help of the public transmission system or a private network.

Network Topology

Definition - What does Network Topology mean?
       Network topology is the interconnected pattern of network elements. A network topology may be physical, mapping hardware configuration, or logical, mapping the path that the data must take in order to travel around the network.
       There are many identified topologies but they are not strict, which means that any of them can be combined. However, each topology has a different standard and may use different hardware methods so they are not interchangeable.

Data From

http://www.techopedia.com

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Nutchanon Plaithoa

What/How do you study ?

What/How do you study in Mattayom 2?

หลักสูตรแกนกลางการศึกษาขั้นพื้นฐาน พุทธศักราช ๒๕๕๑ 

The Basic Education Core CurriculumB.E. 2551 (A.D.2008)

กลุ่มสาระการเรียนรู้การงานอาชีพและเทคโนโลยี

Learning Area of Occupations and Technology

สาระที่ ๓ เทคโนโลยีสารสนเทศและการสื่อสาร 
Chapter 3: Information and Communication Technology

มาตรฐาน ง ๓.๑ เข้าใจ เห็นคุณค่า และใช้กระบวนการเทคโนโลยีสารสนเทศในการสืบค้นข้อมูล 

การเรียนรู้ การสื่อสาร การแก้ปัญหาการทำงาน และอาชีพอย่างมีประสิทธิภาพ ประสิทธิผล และมีคุณธรรม 

Standard O3.1: Understanding, appreciation, and efficient, effective and ethical use of information technology processes in searching for data, communicating, problem–solving, working and livelihood

ตัวชี้วัดชั้นปี Grade level indicatorsม. ๒ Grade 8

1. อธิบายหลักการเบื้องต้นของการสื่อสารข้อมูล และเครือข่ายคอมพิวเตอร์

• ชนิดของเครือข่ายคอมพิวเตอร์
• การสื่อสารข้อมูล

1.  Explain basic principles of communicating data and computer networks

• Kind of computer network
• Communicating data

2. อธิบายหลักการ และวิธีการแก้ปัญหาด้วยกระบวนการเทคโนโลยีสารสนเทศ

• กระบวนการเทคโนโลยีสารสนเทศ
• วิธีการแก้ปัญหาด้วยกระบวนการเทคโนโลยีสารสนเทศ

2. Explain principles and methods of problem-solving through information technology processes.

• Information technology processes
• Problem-solving by information technology processes.

3. ค้นหาข้อมูล และติดต่อสื่อสารผ่านเครือข่ายคอมพิวเตอร์อย่างมีคุณธรรมและจริยธรรม

• ความหมายและพัฐนาการของอินเทอร์เน็ต
• การใช้อินเทอร์เน็ต

3. Search for data and communicate through computer networks morally and ethically.

• Meaning and development of Internet
• Using Internet

4. ใช้ซอฟต์แวร์ในการทำงาน 

• ประเภทของซอฟต์แวร์

4. Use software for work

• Kind of software

         

         เทคโนโลยีสารสนเทศและการสื่อสาร เปนสาระเกี่ยวกับกระบวนการเทคโนโลยี สารสนเทศ       การติดตอสื่อสาร การคนหาขอมูล การใชขอมูลและสารสนเทศ การแกปญหาหรือ การสรางงาน คุณคาและผลกระทบของเทคโนโลยีสารสนเทศและการสื่อสาร

Information and Communication Technology is subject about process of  technology, information, communication, searching data, using data and information, solving problem or making work, value and effect of  Information and Communication Technology

Thank you 

http://occupatech.blogspot.com/2013/05/what-to-study.html , http://www.psc.ac.th/docs/laws/education_core2551.pdf    and https://sites.google.com/site/arisara2512/lea-reuxng-keiyw-kab-kar-sxn/taw-chi-wad-laea-sara-kaen-klang/taw-chi-wad-laea-sara-kaen-klang-m-2

Nutchanon Plaithoa