Computer Learning, My Free Writing on Computer and Information technology

Spyware is deceptive software that is surreptitiously installed on a computer via web; once installed on your hardisk, will allow outsider to harvest confidential information. Such as passwords, email address, or maybe history of website visits.
There are many forms of spyware :
- Adware : is a kind of spyware that tracks web surfing so the marketers can send you targeted and unsolicited pop-up and other ads.
- Browser hijackers : can change settings of our browsers adn replace with another web page.
- Key loggers : can record each character you type and transmit the informationto someone on the internet, which someone can learn your passwords and other information.

Almost all spyware is written to run in Microsoft Windows. You may be protected if you keep your security features updated. Some internet access providers offer scan and removal tools, but you can use antispyware software.
I have used Ad Aware to protect my computer from spyware. You can download from this address http://www.lavasoftusa.com/software/adaware. And you can update the database of this software online from this web.

There are many simple tips for avoiding spyware :
1. Be careful about free and illegal downloads.
2. Don’t just say ‘I agree’, but read the fine print.
3. Beware of unsolicited downloads

Gedit is a nice tool on Linux that is very simple to do text and code editing. Besides lean, it’s also fast. It also has very important features, amongst them was Document Statistics.

Document Statistics is a feature to help you count caracter’s amount on the document. This feature looks like Text Statistic on Notetab, or Word Count on MS Word. Below are steps to activate Document Statistics on Gedit.

1. Open terminal Applications > Accessories > Terminal
2. Execute sudo apt-get install gedit-plugins.
3. Enter your password .
4. Wait untuk gedit-plugins installation finished. .
5. Open Gedit Applications > Accessories > Text Editor.
6. Click Edit > Preferences.
7. Open Plugins tab , check on Document Statistics, click OK.
8. To count the texts’ amount on the doc, click Tools > Document Statistics.

Okay, easy isn’t it.

Spam is un solicited email or junk mail. usually in the form of advertising or chain letters.
There are some tips for fighting the spam :
1. Delete without opening the message.
If you don’t recognize the name of your inbox directory or the topic on the inbox subject, you can simply delete the message without reading it. Or you can use preview feature to look the content, then delete it.

2. Never reply to a spam message.
Replying a spam message will confirm to the spammers that your email is an active email.

3. When you register to a website, read its privacy policy to find out how it uses email addresses.

4. Use spam filters such as Spam Assassin, Junk Spy, McAfee Spam Killer.

If you want to know a place’s coordinate on world’s globe. You may use marble. It’s an offline version of google maps or you may call it google maps-clone. To see a place’s coordinate, click a place so that a pull down menu exist. Click the coordinate menu and click the Copy coordinates menu.

See pic above.

Okay, you have done! Congratulations.

The coordinate then can be pasted on google earth or google maps. ANd you’ll find the more detail resolution of that place’s condition on google maps or earth.

After assembling the computer, we need some instructions for starting the system. One of the most important is to install software. Software is the electronically encoded instructions that tell the computer to do a task.

There are two types of software, which we usually used for computer, namely – system software and application software.

System software : helps the computer perform essential operating tasks and enable the application software to run.
The most important is the operating system, control programs that runs the computer.Examples of operating system software for the PC are various Microsoft Windows (such as Windows 98SE, ME, NT, 2000, 2003, XP, Vista), Macintosh, Linux with its derivatives.

Application software : enables you to perform specific tasks solve problems, perform work, or entertain yourself.
Example, you want to prepare paper on your computer, so you need a word processing program, for example Microsoft Word and OpenOffice.org Writer.

It was an interesting software, initially used for KDE apps. This education tool is very valueable. It was made with QT programming IDE. and now already ported to Windows. The Marble.

I just want to comment about this app! It’s marvelous!!!!! Although it’s maps haven’t had a detail level such as google maps, but it’s fast and desktop app that can display map without even internet connection.

Computer is  an expert machine that everyone use in their life. There are three concepts everyone should understand about how computers work.
1. Purpose of a computer.
Computer is used to turn on data into information. Data can be consisted of the raw facts are processed into information.

2. Difference between hardware and software.
Hardware consists of all the machinery and equipment in a computer system. And software consists of all the electronic instructions that tell the computer how to perform a task.

3. The basic operations of a computer. There are four basic operations on computer :  input, processing,  storage and output. And we can add communications.

• Input : is whatever we put in to computer system. We can use a keyboard, mouse or other devices. The input data may be text,number,image or sounds.
• Processing : is the manipulation on computer system to transform data into information. Data will be processed – numbered compared, text formatted, sounds edited etc.
• Storage : there are two types of storage operation primary storage and secondary storage. Primary storage or memory is the internal computer circuitry that temporarily holds data waiting to be processed. Anda Secondary storage or storage refers to a device that store data or information permanently, such as floppy disk, hard disk, CD.
• Output : is whatever output from computer the result of processing usually information. The information will be displayed in output devices such as monitors, speakers, printers.

Today, most computers have communications ability, which offer an extension capability. With wired or wireless communications connections, data may be input from afar, processed in a remote area, storedin several different locations and output in other places. Data and information can be transmitted by modem to or from other computers as via email or posting to a website.

There are many viruses out there. And most of it are now using usb flash disk, for it’s medium. To make sure that your usb flash disk is safe. You could do a trick. You may set the storage device policies of your usb by changing this entry in Regedit:

“HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies”

Change the dword value with “WriteProtect”

and change the “WriteProtect” value to 1.

Now your usb flash disk is well protected from various viruses and malwares.

Tags: usb flash disk, usb, flash, disk

One of many computers using in information technology is a server.
The word server describes not a size of computer but a particular way in which a computer is used.
A server is a central computer that holds collections of data (database) and programs for connecting or supplying services to PCs, workstations and other devices, which are called clients.
These clients are linked by a wired or wireless network. The entire network is called a client/server network.
In small organizations, servers can store files, provide printing stations, or transmit email.
However, in large organizations, servers may also house enormous libraries and financial, sales and product information.

Here’s steps to change your windows password via command line:

1. Open windows command line by clicking Start > Run then enter cmd command and click enter.
2. The command to change password is net. To see what this net command can do, type net /? and click enter. The command we’ll use is net user. This command will shows all windows’ users. eg: administrator, your username and guest.
3. To change password for your user net user administrator 123456 and click enter
4. Now try to logoff and enter with the new password
5. To delete the password/to make the password void, you may type net user administrator *
6. Let the new password empty and click enter
7. okay, you done it.

Tags: Windows, user, administrator, user account control