IT KNOWLEDGE

IT KNOWLEDGE
BC

Wednesday, July 22, 2015

Creating Google Account

As we know already that Email Account is very important for most user who using internet as internet communication. Email can help us to transmit and receive all kinds of document such as text, images, audio, video and another types of document to each others. It's not like in the past years ago, if we want to send some documents or letter to our relative or friends who live far away from us, we have to wait along time with complex process. Now just only very very short time to share or send letter or document to our relatives or friends with Email(Electronic Mail). In additional, when you want to use another accounts such  as social account( Facebook, Linkin, twitter -etc-) you have to have email account to register too. It's not difficult to get one email account for your own personnel. You can choose which email server that you want to use such as Gmail, Yahoo, Hotmail -etc-. But in this presentation, I  will show you how to create  Google Account(Gmail Account).

  1.  To create Google Account we have to go to Google Account(http://accounts.google.com/) Website   --> Create an Account

2.    When you see the register window, please fill all information then Click Nest
3.  Now you can edit your phone number to get verified code which is sent by Google to your number(you can change with the last input, if you want) ---> Continue
4. After you receive SMS of verified code(6 digits) from Google, you have to input that code to verify ----> Continue
5.Finally, you will see successful window which show that you have create Google account successful 



Or you can do it by watching this video

Tuesday, June 3, 2014

What is Microprocessor

When we talk about processor, it's maybe make some computer users confuse, but if we say  CPU(central processing unit), they will be known immediately what it is.The processor or CPU are the same which is contained on a single chip called the microprocessor. The microprocessor is the “brains” of the computer system. It has two basic components: the control unit and the arithmetic-logic unit.
  • Control unit: The control unit tells the rest of the computer system how to carry out a program’s instructions. It directs the movement of electronic signals between memory, which temporarily holds data, instructions, and processed information, and the arithmetic-logic unit. It also directs these control signals between the CPU and input and output devices.
  • Arithmetic-logic unit: The arithmetic-logic unit, usually called the ALU, performs two types of operations: arithmetic and logical. Arithmetic operations are, as you might expect, the fundamental math operations: addition(+), subtraction(-), multiplication(*), and division(/). Logical operations consist of comparisons. That is, two pieces of data are compared to see whether one is equal to ( = ), less than (<), or greater than (>) the other.

What is system board or motherboard

  When we talk about computer board, I believe that the the most computer users used to heard main board or motherboard but rarely to hear system board. but these three words in computer hardware are the same. System Board controls communications for the entire computer system. Every component within the system unit connects to the system board. All external devices including the keyboard, mouse, and monitor connect to the system board. It acts as a data path and traffic monitor, allowing the various components to communicate efficiently with one another. The most desktop computer, the system board is typically located at the bottom of the system unit or along one side. It is a large flat circuit board covered with a variety of different electronic components including sockets, slots, and bus lines.
  •  Sockets provide a connection point for small specialized electronic parts called chips. Chips consist of tiny circuit boards etched onto squares of sandlike material called silicon.These circuit boards can be smaller than the tip of your finger.A chip is also called a silicon chip,
    semiconductor, or integrated circuit. Chips are mounted on carrier packages.These packages either plug directly into sockets on the system board or onto cards that are then plugged into slots on the system board. Sockets are used to connect the system board to a variety of different types of chips, including microprocessor and memory chips.
     
  •  Slots provide a connection point for specialized cards or circuit boards. These cards provide expansion capability for a computer system. For example, a wireless networking card plugs into a slot on the system board to provide a connection to a local area network.
  • Bus Lines  provide pathways that support communication among the various electronic components that are either located on the system board or attached to the system board.
 















Four types of difference software in system software

     When talk about software, the most end-users always think that is the program that run on their computer to accomplish their specific tasks such as using word processors to create letters, documents, and reports but they don't know what exactly main important type of software that can allow them to use these application software(Word Processor...).  This blog will tell you detail about one type of software which is very important and run on our computer machine is  system software.  System Software is is not a single program. Rather it is a collection or a system of programs which can work with end users, application software, and computer hardware to handle the majority of technical details. For example, system software controls where a spreadsheet program is stored in memory, how commands are converted so that the system unit can process them, and where a completed document or file is saved. System Software is divided in to four types of  software are Operating System, Utilities, Device Driver and Language translators.
  • Operating System(OS) : coordinate computer resources, provide an interface between users and the computer, and run applications. For example: in order to use MS Office Word 2013, the end user need to install MS Office 2013, but in order to install MS Office 2013, the end-user need to install one type of Operating System(OS) such as window 7, 8 .. first.
  • Utilities: perform specific tasks related to managing computer resources. For example: check drive.
  • Device drivers:  are specialized programs that allow particular input or output devices to communicate with the rest of the computer system. For example: when you buy  a new printer, you need to install that printer driver on your computer to let you can print document from your computer.
  • Language translators convert the programming instructions written by programmers into a language that computers understand and process.

Monday, June 2, 2014

Five parts of information system

When you think about microcomputer(computer laptop, computer desktop, handheld, media center system unit, ), you always think that just a special assistant device can help you to produce many tasks such as document, entertainment, communicate by using monitor to view or can input by keyboard, but you rarely think of that microcomputer is as part of an information system. An Information System has five parts are people, procedures, software, hardware and data. but in some document there are six parts included another one is connectivity.

  1. People: is very important part in information system which work as two roles. One is creator or developer and another one is end-user. As you know when the requirement to use one system(Library System Management) occur, you will need the creator or developer to make for user, so this role act as creator or developer. Otherwise, The people who use the completed system which can operate follow their need called "end-user".
  2. Procedure: The rules or guidelines for people to follow when using software,hardware, and data. These procedures are typically documented in manuals written by computer specialists.
  3. Hardware: refer to all equipments that processes the data to create information includes the keyboard, mouse, monitor, system unit, and other devices. Hardware is controlled by software.
  4. Software: refer to program consists of the step-by-step instructions that tell the computer how to do its work. we can say that it's an another name of a program. The purpose of software is to convert data (unprocessed facts) into information (processed facts). For example, College survey program will convert all data which survey to let user know how many students will choose Computer Science, English, Business college when they continue at universe.
  5. Data: refer to raw, unprocessed facts, including text, numbers, images, and sounds.
      Almost all of today’s computer systems add an additional part to the information system. This part, called connectivity , typically uses the Internet and allows users to greatly expand the capability and usefulness of their information systems.

























Saturday, May 31, 2014

How to change password for gmail account

Password is a secret word or phrase that must be used to gain admission to log in to any account. Almost accounts always use with password to protect such as bank account, facebook account, email account. Sometime you use your account like email account in many computers or phones with along time never change password. This will make your account unsecured. To avoid from others log in to your email account, you should frequently change your password, especially when you think that your account is unsecured. To change gmail password, please follow the steps below:
  1. Log into your Google Account
  2. Choose Settings (on the top-right corner)
  3. Choose Account Tab and Import
  4.  Click on Change Password
  5. you will be required to input with 3 Textboxes
    1. Current password
    2. New Password
    3. Confirm New Password
  6. Click button Change Password

How to configure auto respone/reply in your gmail

We have known all together that email(electronic mail) is the most one important among others application  for internet communication. We can send and receive mail with attachment files very quickly around the world. People use email in difference objectives from each others such as communicate with family, friends or education, business... For example being a busy businessman, you can not check your email all the time and you also don't want your customer or your guests who contact you by email upset when you're late to reply to them. Now this is one simple way which help you to solve this problem by reply automatically to your sender in a very short time called "Auto Respone". It means that when someone send email to you and you did not check it yet, it will automatically  reply to your sender with your Meaning that you configured in a very short time. To do this, please follow the steps:
  1. Log into Google Account
  2. Choose Settings (on the top-right corner)
  3.  Choose General Tab
  4. Scroll down till you see word Vacation responder. There are 2 options in  Vacation responder which one is Vacation responder off (default) and another one is Vacation responder on
  5. Choose  Vacation responder on  then input the Subject and Message(meaning that will be auto replied to sender).

 

How to add signature to your compose mail in gmail

All email users have to know three important parts when you send electronic mail to someone. Those 3 parts are:
  •  Header : contains 
    • Address of recipients
    • Subject : what you are going to talk about
    • Attachment: all kinds of file that you want to send to recipients such as PDF file, Image, Video, Audios...
  • Message : contains whole meaning that you want to tell to your recipients.
  • Signature: contains information of sender such as name, phone number, address, email address or website.
 So if all the time when you send email to your recipients, you need to fill your information at the signature section which waste your time and boring. Now you can solve this problem very easy by follow the step below:
  1. Log into your gmail account
  2. Settings (on the top-right)
  3. Choose General Tab
  4. Scroll down till you see word Signature 
  5. In this section, there are 2 options which is one(default) No Signature and second option is Textbox that let you to add signature text. So choose second one then write your information in the Textbox.
  6.  Scroll down to the end of page click Save.

How to Configure Theme to Your Gmail Account

As you see already when you create first google account, you will get the default theme which is black text color and white background. But if you don't want that default and you want to customize to get beautiful background or beautiful text color I will tell you that you can with very easy step below.
  1. log in to your Gmail Acoount
  2. click on Settings on the top-right
  3. Choose Themes 
  4. Then you choose which template that you want or you can customize your own images.

Friday, May 30, 2014

How to Convert Number to Currency (VB.Net)

This tutorial will show you how to convert number to currency using VB.Net. I use two Textboxes whic is one(TextboxNumber) for input number and another one(TextboxCurrency) for show the result of converting and I use one button(ButtonConvert) with Click_Event for process the code.
No Control type Name Text Event
1 Form1 FormConvertCurrency Convert Currency
2 Textbox1 TextboxNumber
3 Textbox2 TextboxCurrency
4 Button1 ButtonConvert Convert  Click

  • As you see in the application screenshot, I input 324 into TextboxNumber then I click on ButtonConvet, the result show in TextboxCurrency is "$324.00". To convert from number to currency like this I use "FormatCurrency()" method.
Code
Public Class FormConvertCurrency

    Private Sub ButtonConvert_Click(sender As Object, e As EventArgs) Handles ButtonConvert.Click
        TextBoxCurrency.Text = FormatCurrency(TextBoxNumber.Text)
    End Sub
End Class

















Friday, March 21, 2014

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Friday, December 13, 2013

Hardware components of computer

I believe that most​​computer users will have doubts about whether a computer consist of  what elements can make it work. what the function of each element? what can we do on those hardware when our computer has problem?

Hardware for a microcomputer system consists of a variety of different devices. This physical equipment falls into four basic categories: system unit, input/output, secondary storage, and communication. Because we discuss hardware in detail later, here we will present just a quick overview of the four basic categories. 
  • System unit: The system unit is a container that houses most of the electronic components that make up a computer system. Two important components of the system unit are the microprocessor and memory. The microprocessor controls and manipulates data to produce information. Memory is a holding area for data, instructions, and information. One type, random-access memory ( RAM ), holds the program and data that is currently being processed. This type of memory is sometimes referred to as temporary storage because its contents will typically be lost if the electrical power to the computer is disrupted.

  • Input/output: Input devices translate data and programs that humans can understand into a form that the computer can process. The most common input devices are the keyboard and the mouse . Output devices translate the processed information from the computer into a form that humans can understand. The most common output devices are monitors and printers .


  • Secondary storage: Unlike memory, secondary storage holds data and programs even after electrical power to the computer system has been turned off. The most important kinds of secondary media are hard disks, solid-state storage, and optical disks. Hard disks are typically used to store programs and very large data files. Using rigid metallic platters and read/write heads that move across the platters, data and information are stored using magnetic charges of the disk’s surface. In contrast, solid-state storage does not have any moving parts, is more reliable, and requires less power. It saves data and information electronically similar to RAM except that it is not volatile. Three types are solid-state drives (SSDs) that are used much the same way as an internal hard disk, flash memory cards that are widely used in portable devices, and USB drives that are a widely used compact storage medium for transporting data and information between computers and a variety of specialty devices. Optical discs use laser technology and have the greatest capacity.Three types of optical discs are compact discs (CDs) , digital versatile (or video ) discs (DVDs) , and high-definition (hi def) discs .

  • Communication: At one time, it was uncommon for a microcomputer system to communicate with other computer systems. Now, using communication devices , a microcomputer can communicate with other computer systems located as near as the next office or as far away as halfway around the world using the Internet. The most widely used communication device is a modem , which modifies telephone communications into a form that can be processed by a computer. Modems also modify computer output into a form that can be transmitted across standard telephone lines.

Types of Microcomputer

As you know in the last content, microcomputers are small, relatively inexpensive and least powerful, yet the most widely used. Microcomputers has microprocessor as its central processing unit(CPU).  It includes a microprocessor, memory, and input/output (I/O) facilities. Microcomputers became popular in the 1970s and 80s with the advent of increasingly powerful microprocessors. There are six types of microcomputer:
  • ——Desktop computers are small enough to fit on top of or alongside a desk, yet are too big to carry aroundare small enough to fit on top of or alongside a desk, yet are too big to carry around

  • —Media center system units blur the line between desktop computers and dedicated entertainment devices 

  • Notebook computers, also known as laptop computers, are portable, lightweight, and fit into most briefcases

  • —Netbooks : Similar to notebook computers, but …
          - —Smaller
          - —Lighter ff
          - —Less expensive  

  • Tablet PC
    • —In addition to a keyboard, a tablet PC allows you to enter data, write notes, and select commands using a pen stylus 
    • —Handwritten data is digitized and converted to standard text that can be further processed by a word processor

  • Handheld
    • —Handheld or palm computers, such as Personal digital assistants (PDAs) and smartphones, are amongst the smallest computing devices
    • These systems typically
      combine
      • pen input
      • writing recognition
      • personal organizational tools
      • communications capabilities
    • Smartphones are cell phoneswith wireless connections tothe Internet



Types of Computer

The most computer users normally know only 2 types of computer are laptop and desktop computers which are familiar for them using daily. But There are a few another computers that normal users don't know and never use them. The desktop and laptop computers are only in one  main type of computer types. So in order to avoid confuse later, we will show all four main types of computer as following:   
  • Supercomputers are the most powerful type of computer. These machines are special high-capacity computers used by very large organizations. IBM’s Blue Gene is one of the fastest computers in the world.
  • Mainframe computers occupy specially wired, air-conditioned rooms. Although not nearly as powerful as supercomputers, mainframe computers are capable of great processing speeds and data storage. For example, insurance companies use mainframes to process information about millions of policyholders.
  • Minicomputers , also known as midrange computers , are refrigeratorsized machines. Medium-sized companies or departments of large companies typically use them for specific purposes. For example, production departments use minicomputers to monitor certain manufacturing process and assembly-line operation.
  • Microcomputers are the least powerful, yet the most widely used and fastest-growing type of computer. There are six types of microcomputers: desktop, media center, notebook, tablet PC, netbook, and handheld computers. 

    What is Application Software

    After you have read the Software and System software in last contents, I hope that you're more clearly the difference definition and functions of them. So in this present, we discuss on what Application Software and what the role of it?.  Application software can be said that is end user software means that is used directly by end users such as MS Word 2013, Adobe Photoshop etc. These programs can be categorized as either basic or specialized applications. Basic applications are widely used in nearly all career areas. They are the kinds of programs you have to know to be considered computer competent. One of these basic applications is a browser to navigate, explore, Microsoft Office such as word, and find information on the Internet.For examples, the most of computer users always use internet explorer such as Internet explorer 7, Firefox etc.. Another one is Specialized applications include thousands of other programs that are more narrowly focused on specific disciplines and occupations. Some of the best known are graphics, audio, video, multimedia, Web authoring, artificial intelligence programs, and cell phone apps.


    What is System Software

    Have you heard about system software before? Have you ever wondered that, why does your computer can show beautiful user interface and very easy for you to select, configure or work on it? This one thing maybe you never think of. So for most normal users, they can not work without user interface like computer experts who can use commands instead. So in order to get user interface and let some hardware work properly,  your computer has to install system software

    System Software is user interacts primarily with application software. System software enables the application software to interact with the computer hardware. System software is “background” software that helps the computer manage its own internal resources. System software is not a single program. Rather it is a collection of programs, including the following:
    • Operating systems are programs that coordinate computer resources,provide an interface between users and the computer, and run applications.Windows 7 and the Mac OS X are two of the best-known operating systems for today’s microcomputer users. 
    • Utilities perform specific tasks related to managing computer resources.For example, the Windows utility called Disk Defragmenter locates and eliminates unnecessary file fragments and rearranges files and unused disk space to optimize computer operations.
    • Device drivers are specialized programs designed to allow particular input or output devices to communicate with the rest of the computer system.

    What is Software

    The most computer users always know that software is a program for producing their work result according to the function that they have, but they never focus on what is software? How many types of software? How to repair or install it when they have problem. So in order to get general knowledge of software, we have to start from software. Software is another name for programs. Programs are the instructions that tell the computer how to process data into the form you want. In most cases, the words software and programs are interchangeable.There are two major kinds of software: system software and application software.You can think of application software as the kind you use. Think of system software as the kind the computer uses.




    Saturday, December 7, 2013

    What is Computer

    Computer is electronic device that can store and manipulate data. It can store download and processing data. In additional, we can use computer for typing document, sending email on internet. We can do a lot of tasks with computer such manage database, presentation, playing games, watch movies.



    Computers Simplified

    For beginning computer users, the computer aisles at an electronics store can be quite a mystery, not to mention overwhelming. However, computers really aren't that mysterious. All types of computers consist of two basic parts:

    • Hardware is any part of your computer that has a physical structure, such as the computer monitor or keyboard.
    • Software is any set of instructions that tells the hardware what to do. It is what guides the hardware and tells it how to accomplish each task. Some examples of software are web browsers, games, and word processors such as Microsoft Word.