Preventing Automatic Installation Tips

I often make an intentionally mistake, but this continue to happen as suddenly unrecognized software installed on my computer. This occurs because less comprehensive to me and sometimes we accidentally click something that requires a specific software installed on your computer.


Maybe you also have experienced the same thing as me, sometimes suddenly appear a popup that wants the software installed and you accidentally click OK the software is easily installed on your computer, and usually self-installed software was obtained from the Internet. What we worry about if it was a virus, spyware or Another Internet disruption,could be a mess right?


Indeed Preventing Automatic Installation Tips does not guarantee full security, but what's wrong if we try rather than not at all, better to reduce the risk than nothing at all right?


If you are a public computer user maybe Preventing Automatic Installation Tips is not useful, but if you use a personal computer you should try these tips.


Because the windows operating system already has a sufficient security programs so we use the windows as our protectors in using the Internet, which to do the installation software on windows operating system you must be an administrator


therefore to avoid software installation without permission, we should not be logged on to windows using an administrator account when using the internet connection.


Create a new account with the Limited type account, with this account you log in when using the internet connection to avoid software that is not intentionally installed to the hard drive.

LCD Monitor Care Tips

Tips on caring for the LCD monitor is not only aimed to LCD monitor alone but all the equipment that uses an LCD screen (display) unit such as a PDA or similar equipment .


Here are tips to keep in mind that maintain durability of an LCD.


Use screen protector that can be obtained at computer shops to prevent scratches on the monitor surface and protect from dust.


Not allowed to cover the screen or the exhaust holes to keep heat exchanges (from the monitor) and the fresh air (of nature) to maintain a stable temperature to monitor.


Before cleaning the LCD screen, notice all the electricity connection disconnected ( disconnected power supply connector) and disconnect cable from the monitor to the CPU as well.


Cleaning of LCD monitor
its advised to use a special cleaning fluid for LCD that can be obtained in computer stores. do not used another fluid beside the special LCD fluid recommended because it can damage the LCD Screen and can absorbed by the lcd screen even a small percentage.


At the time of lcd screen cleaning must use a soft cloth to avoid the occurrence of scratches due to friction, and the wiping process should be done in straight direction. LCD cleaning fluid which will be used to LCD screen cleaning should not be sprayed directly into the surface of LCD screen but it is sprayed into a rag that will be used to wipe the screen and do LCD screen wiped is slowly and don't be too hard pressed. Items that have magnets such speakers should not be placed on side of monitor (CRT or LCD) because the magnetic interference can damage the display on the monitor. Do not put in place the monitor in direct sunlight.


these are the tips for caring for LCD monitors.

Screen Care Tips

Monitor screen is one of the tools or components that are useful in the computer world, monitor as a video display unit (VDU) show any information generated by the central processing unit (CPU). For that the existence of a computer monitor is good to use or not, if the monitor can not display the information although the cpu works well it means nothing without the monitor.


Because of the importance of the monitors this article gives a little tips that can be done by anyone who uses computer as a data processor.


Monitor is the same as other electronic equipment that has electronic circuit consisting of condenser, transistor, resistor, integrated circuit (IC) and other components. These components can work if there is a tension that obtained from the electric voltage. The Voltage must also be stable, so the monitor can be stable too, it is necessary to note special tips to help keep the monitor durability and long lasting.


First Tips on caring the monitor, is not justified to close the monitor with a cloth, plastic on top of the monitor ventilation because monitors are electronic devices that also produce heat, so heat produced by the process of a working monitor must be disposed off or expelled through ventilation holes, so that the ventilation must not be closed during the monitor usage. If you want to close the CRT monitor to avoid the dust, it should be done after the work is completed and the monitor was not used.


Second tips on caring the monitor, avoid putting liquid on top of the monitor because of liquid is a well electrically conducting material so that if liquid is spilled into the monitor causing a short circuit resulting in electronic components damage inside the monitor.


The third Tips on caring the monitor, always clean the dust off the monitor screen as often as possible in order to reduce the entry of dust into the monitor. Dust also has an iron elements that are a conductor. so dust can also cause short circuit on monitors.


The Fourth Tips on caring the monitor, use a good stabilizer with motorized to avoid the ups and downs of the electrical voltage so the voltage changes do not affect directly to the electronic components inside the monitor.


Attention! those tips can only be done on the outside of the monitor, while the inside of the monitor should only done by an experienced technician because inside the monitor still has a high voltage even though monitor was dead, so it is very dangerous.

Computer Repair Tips

Before making a computer repair you need to prepare the equipment in the computer repair whether it is hardware or software.


For hardware that needs to be provided such as screwdrivers, avo-meters and pliers. these tool is a very basic need, if a tool like a screwdriver, and pliers and avo meter is not present do not try to do computer repair because it would an obstacles. While for software problem, you must provided the operating system CD, standard applications such as Microsoft Office and anti virus. Also drivers required for computer hardware. After all of the equipment are present you may start to check the damaged computer. Before taking action against the broken computer note the electrical power cable that is connected to the central processing unit (cpu) to electric source. disconnect the electric connection from the Power source.


Power Supply
After power lines cut off then started to open the CPU cover (casing), then pull all the cables installed from the components to the mainboard, as the data cable between the hard disk, cd-rom, and power supply.


Do check the output voltage from power supply is still in accordance with the information listed in power supply case or not. If it does not fit then do repairs on the power supply or replace with a new one. repair or replace the power supply depends on the heavy or light the damage to the power supply. If the damage is severe (short circuit occurred and fire)it would be better to it replaced with a new one.


Memory
If at the initial examination of the power supply and voltage measures were all still in good condition then check the memory chips, particularly at the yellow gold embedded into the motherboard. Perform cleaning the yellow gold part with a rubber eraser.


Cards besides memory, we clean all cards, such as VGA card, sound card, modem, lan card, TV-Tunner card (internal TV Tunner).


Processor
Processor hold a very important role in the computer system because it is the center of data processing. Processor temperature should be maintained at the time of data processing, therefore, processor usually equipped with a cooling fan, to set the temperature of the processor does not exceed the maximum limit prescribed. If during the checking process processor temperatures exceed the limits You should do the cleaning to heatsink and fan. This thing done if the fan function is still normal (spin well). If the fan is not functioning properly you should carry out replacement process with a new fan. Physical damage is rarely occurs on the processor but do not close the possibility of damage to the processor. To prove it, try using processor is on a different motherboard.


Mainboard / Motherboard
Motherboard is not less important as the processor. Motherboard often damaged due to the lack of stable electricity, turn off the computer by not doing the right shutdown process (directly off the electricity), short circuit (electrical short circuit) due to dust.


Notice the embedded legs components, whether there is burned out or not, if burned out present then there is a possibility the motherboard is damaged. If the motherboard is damaged the solution is you should do a motherboard replacement, cause to replace such components is difficult because of its small size. Hopefully the above tips can help.

Designing Computer Program Algorithm

The algorithm is a formula or a series of steps to solve a particular problem. To be an algorithm, a set of rules should not be ambiguous and have time to stop the clear. We use algorithms every day. For example, a recipe for baking bread is an algorithm. Most of the programs, except for some artificial intelligence applications, consist of algorithms. In computer programming there is often a different algorithm to solve a given problem, in different circumstances of each algorithm have the advantages and disadvantages of its own. Finding an elegant algorithms -algorithms are simple and with few possible measures is a major challenge in programming.


The algorithm can be applied in various ways. In step program design, software designed in two small steps. First, determine the logic of the program through a top-down approach and modularization, using the chart hierarchy. Next, design the program logic in detail, both in terms of narrative, use traditional pseudecode, or graphically, using flow charts.


Very useful when a programmer uses an approach based on personal experience for programming. Programming is considered as an art, not science. However, now most programmers use a design approach called structured programming. Structured programming using top-down approach that breaks the program into the form of modules, and using standard logic devices called control structures (sequence, selection, and iteration case - sequence, selection, and iteration case).


The main objective of structured programming is to make the program more efficiently (with fewer lines of code) and more organized (more readable) and have the notation better, so having a clear description and correct.


1. Determine logic programs using top-down approach.


Determining the program logic, the same as the outline before you start writing theses. Design top-down programs conducted by elements of the process of identification, or modules, of a program and then solve them in order until the lowest level of detail. This design is used to perform the identification process of the program process steps, or modules. After the program was designed, the real coding was done from the bottom up by using the modular approach.


Modularization: modularization concept is very important. Modularization is very simple in the development of the program. because each part can be developed and tested separately. This module is a step of a program poses. Each module consists of program statements that have logical relationships. (Sometimes called sub-module or sub-routine program). Examples of modules can be programming instructions that simply say "Not a file, a record, and display on the display screen". It would be better if each module has only one function, just as the paragraph in the sentence "should have a complete thought". These rules limit the size and complexity of the module.


Program design top-down: The design of the program (top-down) can be described in a hierarchy chart. One chart hierarchy, or structure charts, describes the overall program objectives, with the identification process on all the modules required to achieve these great goals and relationships between modules. This chart works ranging from general to specific, starting from top level (high level) who saw something that must be done by a program. Furthermore, each layer to improve and expand the previous layer until the lower level can be made into a special programming modules. The program must run in order from one module to the next module until it is processed. There are three main modules that one street with three major operations of a computation -input, process and output.


2. Design in detail using or pseudecode and flowcharts.


After determining the logic of the program, then you can do in detail by using top-down programming and the hierarchy. There are two ways to create detail - to write and create images using pseudecode or flowcharts. Most projects use both.


Pseudecode:

Pseudecode is something program design method using human language statement to make description logic and flow of the process. Pseudecode as a framework or a form of a summary of the program you write.


Sometimes pseudecode only used to describe a particular purpose programming modules and general terms. By using terms such as IF, THEN, or IF NOT, pseudecode follow the rules of the control structure, an important aspect of structured programming.


Program flow chart:

Program flow chart is a chart that graphically displays the details of a series of steps (algorithm, or flow logic) needed to solve programming problems. This flow chart using standard symbols - symbols called ANSI (American National Standards Institute), who developed the institution symbol.


The symbol on the left of the image will appear clear. However, how do you see the logic of a program? How do you learn a program that really works? The answer is to use the control structure, as will be explained below.


Structure Control: When you define the logic behind something, you use words like if and then, later if not. (For example, without using the words above, you will learn the following lines: "If he comes, then we'll watch a movie, if not, I'll just tingal home and watch TV"). Control structure is also using words the same. Control structure or logical structure is a structure that controls the logical sequence in which instructions in the program execution. In designing a structured program, there are three control structures used to build the logic of a program, namely sequence, selection and iteration (or loop). This is the device you use to write structured programs and programming work outside. (Additional variations of the three basic structure is also used).


Comparing Three Third Control Structure in general control structure has one input and one expenditure. Control structure is inserted at a point and issued to another point. This helps to simplify the logic so that others can easily follow the trail of programmers to create programs to run. (Before this provision was passed, the programmer can have many variations, which leads to programs that can not understand the so-called spaghetti code.)


Let us consider three such controls.


Sequence control structure: The structure of control sequences, a statement of the other programs follow a logical sequence. Such as the example shown in the figure, there are two boxes ( "Statement" and "Statement"). One box might read "Open Files", and the other "Read A Record". No decisions have been made, there is no choice between "yes" or "no". Box logically follow one another in a sequential order.


Control structure selection: selection control structure -also called stricture IF - THEN -IF NOT - make a presentation option. This structure is applied followed by two lines when the program must make a decision. Sample selection structure is:


IF an employee work hours in one week is more than 40
THEN overtime hours equal to the number of hours to be the difference.


IF NOT employees do not have overtime hours.


Variation structure usual selection control is a case control structure. This structure offers more than one decision "yes or no". The structure of this case provides an alternative, or cases that can be displayed. (1case occurred IF, THEN do, 2 cases occurred IF, THEN follow the alternative "And so on.) Structure of control if a programmer does not have to make so many indications of the condition of IF-THEN-IF NOT separately.


Iteration control structures: In the selection of control structure, or a loop control structure, a process can be repeated as long as his condition remains true. There are two types of iterations strutur - DO UNTIL and DO WHILE. In this case, DO UNTIL dugunakan more often.


Example DO UNTIL structure is as follows:


Read employee records DO UNTIL there are no more employee records.


DO WHILE struktru examples are as follows:


Do employee records while [that is, as long as] there continue to be employee records.
What is the difference from the second iteration structure that? Here's why: if several statements necessary, you must decide when to stop repeating it. You can stop it at the beginning of the loop, by using the structure of DO WHILE. Or it can end at the end of the loop, by using the structure DO UNTIL. DO UNTIL iteration loop means the statement to be executed at least once, because in this case the iteration statement is executed before the program checks to stop.


Under Computer Science (CS)

Define Specification Computer Tips

Strive to use a good PSU (pure power). Do not be tempted by the size of reply offered watts. Remember: the price is never a lie! If there is to sell his case for the next PSU with 400thousand lure him 450 W PSU (for example), forget it. PSU of this type there is only ditulisan are 450 W, power could be 250W you have been lucky. Except for the company to assemble a low-end motherboard with VGA OB and not a lot of additional components, do not ever use a cheap PSU casing innate.


Company is not like a toy cars for children. If the toy, batteries drop only way to slow and the lights dim. Once the new battery is replaced, the road back to normal. Component companies are not like that, if the voltage / power is less then he will be damaged permanently. Brpotensi bad PSU damaging other components. Do not bet money that we have millions to spend on buying CPU evaporated because we save a few hundred thousand to buy a good PSU.


Processor:


If funds are limited, may be derived spec class processor (except for that it needs to use a sophisticated processor). This component is the most easily upgraded. And if we understand a little about the technical companies, not too hard to push (overclock) the processor to perform equivalent to processors with the spec on it (the more expensive of course). Later, if the processor's performance is deemed insufficient for our needs, just buy a new processor is more powerful reply. Original condition only mobonya support.


Motherboard:


The most difficult to precisely determine the choice of motherboard. These components can hardly be upgraded, since replacing the motherboard are sometimes followed by replacing the processor as well. If this had better long-selling company, buy new. Tips in choosing a motherboard, buy a motherboard with a chipset according to the latest financial capabilities of our. Usually have the latest chipset supports the next generation and features. 2 years, for example, our company has oversized handles a variety of new applications, we live just replace the processor with the younger generation.


Memory:


For now, the capacity of 1 GB of RAM is the minimum requirement to run applications with ease. It would be nice if we put 2 GB of RAM in the system. Thing to note is spec mobonya, whether already supports dual-channel feature (almost all the new output mobo already supports dual channel, unless a specific type). With the motherboard which support dual channel, it is recommended to use 2 identical RAM chips. So if you want to install 1 GB memory buy 2 pieces @ 512 MB with the same brand (and if it can be the same batch number). It is 2 pieces @ 512 MB a little more expensive than 1 kping @ 1 G, but worth paid for the performance of memory becomes faster.


Optical Drive & Hard Disk:
Optical Drive Purchase as needed. If it needs to write data on DVD, then have to use DVD-RW. But if the data is written on the CD, the DVD combo is the most sensible option. Whatever the condition, DVD drive has become a necessity today. Most of the installer of new applications have been using DVD format, not the CD.


Connection for Optical Drive and Notebook should use a Serial ATA (SATA). Some of the latest motherboard that has rarely port IDE / Parallel ATA natively. It is usually still available IDE port, but it was handled by a special chipset that 1 will turn it into SATA. Sometimes deteksinya more slowly, though can function normally.


By Computer Secience (CS)