Showing posts with label Computer Science. Show all posts
Showing posts with label Computer Science. Show all posts

Wednesday, January 28, 2015

How to Troubleshooting a Dead Computer Without Warning

Troubleshooting a Dead Computer Computers die broken aliases can arise in two ways and if the computer is off and no warning beforehand, it means that you can still find out about what the source of the problem.

But if it is being used and suddenly the computer turns itself off without any warning? What are the causes and the solutions? This is the solution:

The cause and the solution can be one of the below possibilities.

  1. Computers are too hot or overheated 
  2. Problem error / hardware malfunction. 
  3. The virus computer. 
  4. Problems with the operating system for example Windows . 
  5. Another failure of hardware

Computer too hot or overheated.
A computer can turn itself off without warning if it has exceeded the maximum heat required (especially Processor). Many computers today are designed to shut down or reboot automatically if the computer, processor, or other devices on your computer to overheat. If you've heard the voices that are not normal from your computer like a buzzing high, this could indicate a failure in your computer.

You can start by checking out the fan in the power supply to check the back of the computer is off and see if the fan moves smoothly. You can also open up the computer and make sure the fan works (processor fan and the fan casing) and / or if the VGA using a fan, then please go into the BIOS and make sure the BIOS does not report any errors. Note also the location of the aluminum cooler because if the position is not right, then even if there is a fan, the cooling process will remain masalah.Pengguna may also be able to determine how hot the computer with onboard thermal sensor. If your computer is equipped with a sensor, make sure you are not active CPU overheat

Problem error / hardware malfunction
Any failure of your computer hardware components can cause your computer to unexpectedly die without warning. If you recently added new hardware, make sure it does not cause problems for your computer. Before attempting to open the hardware, make sure you do not run into problems due to a hardware conflict by looking at the Device Manager to check for errors.
If problems arise when you just installed new hardware into the computer, then certainly the cause of this new device. Start the computer after opening the earlier device and observe if the problem is completed or not.

Virus Computer
Maybe your computer is infected with a virus that is designed to turn off your computer. If the computer Matia itself when running a specific program at a specific time, such as a computer directly only die if you run the program Word then that's a sign that the program is infected or infected with a virus. If you believe your computer may be infected with a virus or are not sure whether your computer is infected with a virus, make sure you do scan whit latest anti-virus.

The problem with the operating system.
If after following all the above recommendations your computer still continue to die alone, chances are you have problems operating system of Microsoft Windows that is difficult to explain. To help ensure that this happens, please try the steps below.

Reboot the computer and enter CMOS setup as the computer is booting. If you are not familiar with how to enter CMOS, please download the Guide to Become a Computer Technician I prepared on the side. Once you have opened the computer in the CMOS setup, leave the computer for a while. If the computer does not die in some time meant he was able to survive the road in the BIOS then the probable cause is a Microsoft Windows. If this happens the solution is in the book Guide to Become a Computer Technician Another failure of hardware

If after reinstalling your operating system, or during the installation of your operating system, the same case is still going on, it is possible that there are other hardware failures in the computer. Often occurs for example RAM, CPU, motherboard, and / or Power Supply. If you have an extra supply of these parts or have a friend or co-worker with the same configuration, try swapping these parts to determine the problem you.If not, you need a more senior technician services, please read Theoretical computer science.

Tuesday, November 4, 2014

Step-by-step Computer Repair General

If your personal computer when are broken / crashes you might be thinking to drive to a computer repair service to fix. But before you go to a computer repair service you should understand the basics of computer repair in general as a first aid measure computer repair:
  1. Check the main power supply cable connections and DC voltage cables. 
  2. Check the keyboard cable connection. 
  3. Check the monitor cable connection and monitor power cable.  
  4. Check the configuration of the CMOS settings 
  5. Check the power cable connection and data cable drive. 
  6. Check all daughter board or card installed in the slot I/O 
  7. Check the position of the keyboard keys 
  8. Check all ICs are mounted 
  9. Check all ICs are mounted
Try to turn on the computer, check the power fan rotates normally supply. If fan then do the following diagnoses:
Computer Repair

POST Each time the computer is turned on, the computer will automatically begin the diagnostic step, known as POST. POST will inspect and test all components of the system. If a problem occurs during POST, then a message will be delivered to the user. The message can be: message display on the screen, a beep sound, or both. Indication of a problem during POST stated:

- Error code >>  two to five digit number
- Error messages >> short messages in English (there are some messages that indicate a problem that is being experienced in your computer)
- Beep code >> beep sequence (each has its own meaning beep sound that indicates damage to your computer hardware.) On another occasion I will describe the meaning of the meaning of each computer beep.

diagnosis general This diagnosis includes: system configuration, system configuration changes, and format the disk. Diagnosis Diagnosis locate and solve this damage include three categories, namely:

a) software (bad command or file name, disk not ready, an internal error, overflow)
b) Configuration error code (too large for memory configuration, 201 error - the system unit, parity chech x 601) c) system lockups.

If all the steps above you have done but did not find a cause or solution fixes your computer then you should take it to a computer repair service.

Friday, October 31, 2014

Easy Ways to Fix Damaged Hard Drive

how to repair hard drive bad sectorHave you ever experienced, hard drive on your PC suddenly stops spinning and your PC hangs? It
could be the cause adalahkerusakan on the hard disk or commonly known as bad sectors. Bad sectors on the hard disk, there are two kinds of bad sectors and physical bad sectors software. Both kinds of bad sectors that have symptoms such as the cessation of spinning hard drives and the computer suddenly hangs.

Physically bad sectors are often caused by physical damage, such as the hard drive is dropped, exposed to dust, heat, and so forth. As for bad sectors software operating errors can occur due to a computer / laptop, as when we turn off the computer / laptop does not use the shutdown button. In addition, there is also caused by the death of electricity suddenly while using the computer, excess voltage, virus attacks, and others.

If the damage to your hard drive or bad sectors caused by the software, then you do not need to rush to call a technician to disassemble components untul your hard drive. Akantetapi you can fix it yourself with a flexible and secure applications. In just a few steps, your hard drive will most likely have to recover. Computer Tips Ditectory will share it to you like this:

1.Hard Disk Drive Bad Sector Repair
The first way is to use this application which will work in accordance with the Maxtor 541DX series. The process of work of this application is to detect in advance that there are errors on the hard drive is damaged. Then this app will make improvements such that it could work like the original hard drive before it breaks. To obtain an application, please click here.

2.Hard Disk Drive Low Level Format Tool
The second way requires you to back up all the data stored in the hard drive. It aims to keep important files on your hands because this application serves to erase all data and reset the hard drive so the hard drive exactly the same condition when you first purchase. This makes the hard drive back fresh and damage will be lost. To obtain an application, please click here.

3. Software Recovery
The last way is the opposite of the way earlier. Software recovery function to restore all the data on the hard drive is lost, deleted, formatted, and so forth. There are many sites that provide this application, we encourage you to choose one of them do you think is the best. To obtain an application, please click here

Those are some applications that you can use to repair a damaged hard drive or bad sectors. Hopefully what I share can help solve the problems on your hard drive.

Friday, October 24, 2014

Theoretical computer science

Computer ScientTheoretical computer science is a practical scientific approach to computers and applications. This is a comparative study of a systematic feasibility, structure, expression, and mechanization of the methodical procedures (or algorithms) that underlie the acquisition, representation, processing, storage, communications, and access to that information, whether that information will be encoded as bits in memory computer or will be forwarded to the gene and protein structures in biological cells. a computer scientist will specialize them into a theory of computation and the design of the computing system itself.

Sub-field can be divided into different disciplines of science theory and practice. there are some areas, such as computational complexity theory (which addresses the basic properties of a computer and hardware issues), this is very abstract, while other areas such as computer graphics emphasize the visual form of a real application. While other areas more oriented to the challenges in implementing computations.

For example, as the programming language theory that considers various approaches to the description of the calculation, while the study of computer programming itself investigate various aspects of the use of programming languages ​​and systems are very complex. While the interaction between humans and computers is considering the challenges in making computers and computations are very useful, usable, and universally accessible to humans. See also the article on computer engineering.

Sunday, October 19, 2014

Computer Engineering

Computer engineering  is one of the engineering discipline that integrates several fields of electrical engineering and computer science / engineering information. Some universities enter into a specialization in computer engineering majoring in electrical, but there is also a technique that opens into a computer as a stand-alone department at the University.

computer engineeringComputer engineering students are not only taught about hardware or software, but the interaction between the two. Like most other engineering disciplines, the ability in mathematics and physics are the basis of computer engineering.

What is learned in computer engineering? Generally, areas of specialization are studied in computer engineering which are about embedded systems, computer networks, and multimedia technology. As an illustration, existing courses in the department of computer engineering of such as the operating system (OS), organization and computer architecture, signal systems, design digital systems, software engineering (software engineering), OOP programming, signal systems, image processing, wireless technology, computer networking and network security, telecommunications engineering, etc. To avoid confusion, can be found on the internet picture of the course in order to know if entry will learn what computer engineering job.

Employment matters, such as the Department of smelling other computers, computer engineering explore different areas of work. Graduates can work as a programmer, software engineer, embedded systems engineers, systems engineers, network engineers, IT consultants, the field of web hosting and services, etc.