Computer Security

on Thursday, August 2, 2018

Computer Security

In Today’s Society, Protecting Your Computer Is A Requirement

Advances in computer technology is a double-edged sword. On one hand, it affords us quick and easy access to numerous conveniences such as bank statements, favorite shopping centers, school and health records, and more. On the other hand, it can also grant the same access to those who aren’t supposed to get it. Although it’s a rare occurrence, hacking has become the biggest criminal nuisance in computer history.

Make no bones about it. There’s nothing innocent or cute about the hacker. Today’s hackers aren’t the pimply-faced teen rebels that you might be thinking of. Instead, this generation of hackers are grown individuals who are more than likely earning a living by stealing the identities of innocent, law abiding individuals and then selling those identities to others who want to slip by the system. And the only protection against these seedy people is prevention.

Computer security couldn’t be more important than it is today and that’s why we’ve taken the time to introduce it to you. You can reduce the probability of experiencing identity theft by making your computer as hacker-proof as possible. All that’s needed is a little software and a lot of common sense.

1. Install an anti-virus/anti-spyware program. Anti-virus/anti-spyware software will stop malicious code from downloading and installing onto your computer while you peruse the Internet. Known as viruses, worms, or spyware, this malicious code can destroy important files and render your computer good for only one thing: sending sensitive data back to the server of an identity thief.

2. Don’t store sensitive data on your computer in the first place. Should your computer get infected with a virus, worm, or piece of spyware, you can thwart the individuals responsible by not storing your personal information on your PC so that when and if your computer does send back data – it won’t be anything valuable. Hackers look for things like full names, social security numbers, phone numbers, home addresses, work-related information, and credit card numbers. If these things aren’t saved onto a computer, there’s nothing critical to worry about other than restoring your computer to a non-virus condition.

3. Don’t open files without scanning them with an anti-virus/anti-spyware program. In the past, the warning was to avoid opening files from people that you don’t know. Today it’s really not safe to open files from anyone (without scanning the files) because that’s how viruses get spread – through files - even by mistake. So even though your co-worker may have emailed a funny video, it’s no more safe to open than a video downloaded from a complete stranger. Be safe and scan each and every file you download from the Internet or receive through email regardless of where it came from.

4. Create a barrier between your computer and prying eyes. Anti-virus/anti-spyware programs are only effective after the effect. But you can prevent identity theft from occurring by installing a firewall. A firewall is software that checks all data entering and exiting a computer and it then blocks that which doesn’t meet specified security criteria (user-defined rules).[1]

5. Don’t click on website links in spam messages. In an effort to obtain personal information, some spammers will send email that asks you to click on a link. The email messages are often disguised as important messages from well-known online establishments, and they often try to scare their readers into clicking links with threats of closing an account of some sort. Sometimes the links are harmless and attempt to con the reader into volunteering personal information (credit card number), but other times the links attempt to download harmful software onto a computer.

Your best protection against computer crimes is your own knowledge. Hopefully the suggestions above will prompt you into taking appropriate action and into protecting your computer with the suggested tools. In doing so, you’ll not only protect yourself, you’ll prevent the spread of these malicious activities and protect others at the same time.

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Introduction to Programming

Controlling Your Computer with a Programming Language

In a previous article, we introduced automating some tasks with MS-DOS batch files. In this article, we’re going to introduce programming and describe how it can be used to control the way your computer works. Normally, computer novices aren’t interested in controlling the computer. New computer users are typically interested in learning more about how the thing works. However they may be surprised to learn that programming increases computer knowledge as a whole and it can help to diminish the fear associated with using a new computer.

Programming a computer is creating a sequence of instructions that enable the computer to do something.[1] The people who program computers (called programmers) use a programming language to communicate with a computer. You might have heard of some of these languages in the past such as Visual Basic, C++, or Fortran. There are hundreds of other programming language and neither one is better than the other. Most of them are capable of performing the same tasks and achieving the same goals. A programmer chooses one language by a simple preference.

Each of these languages differ by the way they communicate with a computer however, and the commands that they follow are very specific. Not a single command of one language can be interchanged with the commands or language of another. But all of them can be used to control a computer.

Now it would be impossible to teach you how to program any language in a single article. But we can still introduce you to some of programming’s most basic concepts – starting with the commands we talked about earlier. Commands are the instructions that a computer follows to perform an action. [2] To make them work inside of a program, programmers assign commands to objects like buttons for example.

The commands in a program are pretty useless unless they have some data to act on so programmers either give the programs some data to work with (list of names or numbers for example) or they make the program generate it’s own data. Sometimes, the data comes from an outside source like the Internet or the computer that the program runs on. The data that a program receives is called input and data that the program generates is called output.

Other times, the data is unknown. If the program were working with a simple algebra equation like, “x + 5 = y,” the variables “x” and “y” would be unknown pieces of data. Or if a program were to calculate a date “x” days from now, the variable “x” would be an unknown piece of data until we tell the program what “x” is. In programming, it’s sometimes required to work with unknown pieces of data.

That’s when conditions come in handy. Conditions allow a program to perform an action based on the outcome of a previous command.[3] Using this type of instruction, we could instruct a program to do one thing if the “x” variable in our latter example turned out to be 7 days, and then do different thing if the variable turned out to be 3 days.

Commands, data, variables, and conditions help build the most simple programs and there are certainly many more components of any programming language. But when they’re typed into a programming language and compiled to create a an executable file (a file ending with the .exe extension), they turn into a software application.

As we mentioned earlier, you can use a programming language to control your computer. By using simple commands, you can program your computer to perform mathematical tasks, fill out web forms, compose an email message and send it off, or any number of other things. If you’re interested, you may find Visual Basic is one of the most easiest programming languages to learn. Visual Basic is an object-oriented programming language and it automatically codes much of a program the minute a programmer drags a button onto a screen.

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[1] Source: WordWeb Pro 4.51

[2] Source: http://www.neobasic.biz/basics.htm

[3] Source: http://www.neobasic.biz/basics.htm

Introduction to Programming

Controlling Your Computer with a Programming Language

WHAT MAKES A GREAT GAME

What Makes A Great Game

A Gentle Reminder for Programmers

It’s easy to get lost in all the details of building a great video or computer game – so easy in fact, that we can forget the parts of a game that make them fun to play. The following serves as a gentle reminder of what prompts players to play games in the first place. Refer to this reminder in the event that you get bogged down or distracted with confusing C++ syntax, or lines and lines of Visual Basic statements and DLL structures.

1. Remember the player is the main character. Here’s a secret between you and me: People play games to gain a sense of control. If you can manage to program your game in a way that puts the player in control, then you’ve already won half the battle. This doesn't mean to suggest that the game should be easy. It simply means that when a gamer runs home from school or drives home from work to play a video game, she wants to feel the control that she didn’t have during the hours between nine and five. The outcome of a game – whether it’s a win or a loss - should never be random, but the result of a good, controlled game play instead.

2. KISS. Remember that acronym? It stands for Keep It Simple Stupid. We all know that programming a game is hard business, but believe us when we say we don’t want to be reminded of it. The difficulty of programming a game should never be part of the game play so when possible, make the game easy to start, easy to navigate, and of course, easy to play. We’re not asking for pre-school strategy here, but on the other hand, we don’t want to feel as dumb as a pre-schooler either. Forget the hundred page manual. Nobody except the truly obsessed is going to read it anyway. Build your game for the average Joe and everyone will be your fan.

3. Add plenty of action. And add lots of it too. The more action you add to your game, the more attention players will pay attention to it. And the more that players pay attention to your game, the more addictive your game gets. For every action that a player's character makes, have the game react and then prompt the player for more.

4. Make the story a good one. Nothing is worse than playing a game only to wonder what you’re doing and why. Purpose is and always has been a human obsession. But without it, we’re left wandering... in the darkness... wondering bizarre things like how the house would look in a coat of bright pink paint. Don’t give your players the opportunity to waste time like that. Give them a mission and make sure your game reminds them what the mission is at opportune times and why they must complete it.

5. Give us eye candy. But make it relevant. The graphics in a game shouldn’t be distracting, they should make our eyeballs glaze over with satisfaction upon seeing them, and then salivate for more. Graphics should contain clues and entice us further and further into the game until we’ve beaten the thing.

6. Make it real. Fantasy games are okay, but what makes them cool is the fact that they’re realistic. It’s hard to get into something that isn’t familiar or that there’s no way we could ever experience. But if you can implement some reality into your games, players will appreciate it and relate to it on a whole new respectable level.

TEKNOLOGI