The Tech Storror

How to maintain and use disks There are basically three types of disks used in computers, namely: (i) Floppy Disk, (ii) Hard Disk, (iii) Compact disk or CD. Of these, the first two discs work on the principle of magnetic and the third optical technology. At present there is not much use of floppy disk. However, magnetic hard disk and optical CD or DVD are two essential means of data storage in computer systems. Disk drives are used to store and read data on these disks. Disk Drive Maintenance: Dust or dirt can damage this drive and data can be lost if the disk enters a dusty drive. In addition, due to the formation of dust layer or oxide layer, the rotation of the drive head is hindered. For these reasons, disk drives must be cleaned regularly. Disadvantages for disks and disk drives are: (i) High temperature (ii) Cold flow (iii) Electro-magnetic field (iv) Dust (v) Ash or fibrous matter.  (vi) Stress The following steps can be taken to protect disks and disk drives from various m...

What are desktop items in Windows operating system\ Items on the Windows operating system desktop screen with names and pictures are each called icons. The main items on the desktop of the Windows screen are: (i) My Computer  (ii) My Network Place (ii) My Document (iv) Connect to the Internet (v) Online Service (vi) Recycle Bin (vii) Internet Explorer (viii) Taskbar (ix) Outlook Express Windows Media Player et cetera. The main items on the desktop of Windows operating system are described below-- Taskbar: The bar containing the text Start at the bottom of the desktop is called the taskbar. To the left of the taskbar is the Start button. From this button, various program files can be opened and the computer can be shut down. Besides, time and running programs are shown on the right side. My Document : Document and other files are saved in this folder as per default setting. Under My Document there is a sub-folder called My Picture. Any image input from a digital camera or scanner is...

Computer Virus Types of viruses The names of two species of virus in general are particularly noteworthy. Two types are Trojan horse and worm virus- • Trojan horse virus: This type of virus encourages the computer user to follow the message with some interesting message. By responding to the Trojan virus's call, the computer user is in immediate danger. • Worm virus: This type of virus gets into the computer like a malicious insect along with any file. Then it attacks the special files of the computer by making automatic copies and enters and disrupts the normal functioning of the computer. Computer viruses can be mainly divided into two categories on the basis of their destructive effect, like: (i) Program Viruses (ii) Boot sector virus. Program virus: This type of virus adds virus code to the first or last part of the executable file. In this case the number of bytes of the executable file shows more or less than the actual number. In this case, some common words can be noted ...

Software maintenance tools Software maintenance tools and system tools used in Windows operating system for software maintenance are backup, character map, disk clean-up, disk defragmentation, file and setting transfer wizard, schedule task, security center, system information and system restore. Below are descriptions of three commonly used tools (Disk Clean-up, Scan Disk or Check Disk, and Disk Defragmentation): (a) Disk clean-up: Many unnecessary files accumulate in the computer system at various times, such as temporary files, files downloaded from the Internet, files stored in Recycle Bin. All these files occupy the memory or space of the computer system. All these unnecessary file systems can be deleted using disk clean-up tool. The following unnecessary files can be deleted using disk clean-up tool. * Temporary Internet files * Downloaded program files * Deposit file in recycle bin * Temporary files (b) Scan Disk: If there is any error in the saved file, it can be corrected us...

Malicious computer drivers Describe the malicious computer controllers: Various effects and causes work for computer damage. Some of these effects are natural, some are artificial and some are due to user inefficiency and carelessness. Besides, some negative actions intended by other users can damage the computer. Computer malware controllers can be broadly divided into four categories: (a) Physical damage controls (b) Malfunctioning controllers due to electrical problems (c) Software Malicious Controls (d) Improper Handling of Users. (a) Physical Harmful Controllers: Those harmful controllers that occur due to external conditions and environmental factors causing damage to the computer are called Physical Harmful Controllers. called physical damage control. The names of such controllers are: (i) Dust (ii) Smoke (iii) High Temperature (iv) Very Low Temperature (v) Magnetic Fields (vi) Liquid & Humidity (vii) Corrosion to Parts (viii) Noise or Interference. (b) Faulty currents due t...

Functions of different keys on the keyboard: Keyboard is a device with many buttons consisting of letters, numbers, symbols etc. to provide various information or instructions to the computer. Keyboard is used as the most widely used input device. It has some additional buttons besides the required buttons. These additional buttons can be used to perform various commands on the computer. Normally keyboard has 104 number of buttons. These keys are divided into the following six categories, viz (i) Alphabetic Key (ii) Numeric Key (iii) Function Key (iv) Cursor Key (v) Special Key (vi) Command Key (i) Alphabetic Key: The keys A to Z in the middle of the keyboard are called alphabetic keys. These keys are used to type various characters. (ii) Numeric Key: The ten keys from 0 to 9 located below the function keys of the keyboard are called numeric keys. Numbers are typed using these keys. (iii) Function : The keys from F1 to F12 located on the top row of the keyboard are called function keys...

Cloud Computing  Using different computing resources, such as hardware and software, through a computer network system is called cloud computing. The method used to access some global facilities by connecting to the Internet is called cloud computing. Through this, the remote user gets the data, software and results of the processing through the computer. Cloud computing services started in 2005. Amazon.com's Elastic Compute Cloud (EC2) was the first to offer this service. Although the concept of cloud computing is not new. The concept of central computing was introduced in the sixties. According to that idea, big companies plan to install a mega computer in every city. City dwellers will receive computer services through lines like electric or dish lines. The project did not materialize due to network speed limitations. The concept of grid computing in the 1990s is also basically a concept of cloud computing. At present, famous companies like IBM, Microsoft, Google etc. are provid...

Morality in applying information and communication technology With the development of information and communication technology, its misuse is also increasing. Information and communication technology is being used in many unethical activities. Information and communication technology, like any other scientific invention, is being misused. Everything has both good and bad sides. Information and communication technology is no exception. However, the advantages of information technology outweigh the disadvantages. However, through the use of information and communication technology, some perverse things are observed. Although its bad effects depend on the individual's taste and thoughts. Also, personal privacy is being disturbed in many cases through the use of information technology. Online banking systems are being disrupted by internet hackers. Automation is increasing in many fields due to the benefit of information technology, thus increasing unemployment. In addition to this, th...

Genetic Engineering The process by which the acquired knowledge of heredity is used for human welfare is basically called genetic engineering. Genetic engineering is a process in which parts of DNA or RNA that protect the offspring are removed or inserted into cells. Sometimes it is also called genetic modification. It is a branch of biochemistry in which life is defined at the molecular level. The journey of genetic engineering began with the discovery of recombinant DNA technology by Paul Berg in 1972. The term "genetic engineering" was first used in 1951 by Jack Williamson in his science fiction novel Dragon's Island. A year before that, Alfred Hershey and Martha Chase confirmed that DNA is the carrier of heredity. Some other branches of biotechnology like microbiology, biochemistry, biostatistics, tissue culture like genetic engineering is also a branch. Genetic engineering involves removing DNA carrying a specific gene from an organism and transferring it to a differ...

Biometrics Biometrics is a special method of identifying individuals based on certain unique characteristics of people. Biometrics is an advanced branch of biology that helps in measuring the biological characteristics of humans, such as fingerprints, DNA (Deoxyribo Nucleic Acid), voice, eyeballs, facial images, etc. The main task of biometrics is to find the unique characteristics of each person and to help identify each person individually in light of those characteristics. As early as 500 BC, the Babylonians used fingerprints on small blocks of dried mud for business purposes. In 1891 Juan Vucetich of Argentina started the modern era of fingerprinting by inventing the method of catching criminals. Biometrics are mainly divided into two categories namely structural and behavioral. Other structural features are human face, fingerprints, hand shape, iris, DNA etc. On the other hand behavioral features are key-stoke, signature, voice and retina etc. Biometrics works basically using two ...

ICT Dependent Production Computer Aided Design (CAD) is widely used in various industries. Computer controlled machines are helping in speedy production of similar products. Even in small scale industries it is becoming possible to make objects of complex shapes with precision through the use of ICT rather than manual manufacturing. Use of ICT in Design : ICT can help in designing various products in the following ways -- Product diagrams can be created and edited as needed through computer graphical software. Desktop publishing can also do various writing tasks by drawing the product. Currently manufactured product images can be scanned and used in graphics. Database packages can be used to keep track of various products. Spreadsheet software can be used to display the cost rates with the production of various products through charts. Use of ICT in Manufacturing: ICT helps in product manufacturing in following ways Printing of various product images on cards. The process of affixing t...

Space Exploration Knowledge of space in the 20th century is not possible without the use of information and communication technology. By capturing, processing and storing data, it is possible to quickly learn about starlight falling on the surface, space, other planets and Earth. In September 1962, US President Kennedy made an appeal to students and faculty at Rice University for American research into space. Man wanted to go to the moon not because it was easy, but because it was challenging. Man traveled to the moon by proving the power and capability of man. Information technology was still being used when Galileo was looking at the stars, moon and planets through a telescope. When space travel was first ventured into, not much was possible without the help of IT. Space flights move at such high speeds that it is impossible for humans to calculate their positions. Let's say the rocket is traveling at 30,000 km/hr in space. The speed, trajectory, fuel, temperature, direction etc....

Cryosurgery Another name for cryosurgery is cryotherapy. The word cryo means ice cold. Cryosurgery is a procedure in which abnormal body tissues are removed at extremely low temperatures. This method has been used in various skin treatments for about a hundred years. Currently, this method is widely used in the treatment of various skin diseases such as acne, mechata, mole mecha and skin cancer. Currently, cryosurgery or cryotherapy is being used to treat not only skin but also liver, piles, mouth cancer, prostate or certain types of bone cancer, cervical cancer. Cryosurgery is very popular in the treatment of prostate cancer in elderly patients. If there is a tumor somewhere inside the body, a thin needle-like instrument, known as a cryoprobe, is inserted into the tumor. The cryowasher contains a camera to collect ultrasound images. The cryoprobe is connected to a computer. Specialists can manage the operation by viewing the location through special software.  This technology is m...

Artificial Intelligence Intelligence or the ability to think that animals have which no physical object has. However, the long-term efforts of scientists have made it possible to give at least some thinking power to machines. This is basically artificial intelligence. The word intelligence is a collective form of several special qualities. Such as thinking about a particular subject, making decisions, solving problems, learning from experience, acquiring knowledge about any subject, applying acquired knowledge, responding quickly and successfully to new situations, understanding language — All this is part of intelligence. The word artificial can be placed before this intelligence or intelligence only when it is possible to simulate these qualities in a system. Artificial intelligence (AI) is the implementation of human thinking or intelligence through machines. A variety of programming languages ​​are used to implement artificial intelligence on computers. Like C, C++, Python(TensorFl...

Virtual Reality 1961 Morton L. Heilig's first virtual reality debut with a device called the Sensorama stimulator. However, computers had nothing to do with this technology. Virtual reality is not real, but science-based imagination that creates the illusion of reality. At the center of this world is a highly dynamic specialized microprocessor known as the Reality Engine. It requires a computer with high processing quality to use it. It is based on computer technology and simulation theory. One can only read or watch an event on TV or in a book, one cannot actively engage with that event. But in reality it is hypothetically possible. Much like video games, where it is possible to exercise one's imagination within the main program. It is also possible to travel to the depths of the Pacific Ocean, if you wish to see giant dinosaurs. Everything we see around us is three-dimensional and colorful. The help of two three-dimensional glasses is taken to reveal the three-dimensional rea...

What is Indicator  Indicator is a type of indicator. Indicators that are based on various formulas and calculations are created through C programming language. These indicators are based on the formulas or calculations you have created for your trading for various analysis. When you load the indicators into a chart in MT5, you will automatically create the indicators based on the formula. It will give the signal whether the market will now go into an uptrend or a downtrend. We can easily understand whether the market is an entry point or an exit point with the help of indicators. That is, if you use an indicator, then you need to do a new market analysis with the formula you created the indicator. That indicator will tell you whether your logic is buy or sell at this moment. That is, the indicator is a type of indicator. Which is made based on various formulas and calculations. And based on that formula and calculation the indicator gives you instructions. That is, it will provide ...

Types of mobile memory cards: 1. SDSC ➤ Security Digital Standard Capacity 2. SDHC ➤ Standard Digital High Capacity  3. SDXC ➤ Standard Digital Extended Capacity  4. SDUC ➤ Standard Digital Universal Capacity   Many memories are written like (2), (3), (4). This means how fast it can perform copy and paste operations when this memory is connected to a computer.

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  Your one like is equal to 10 likes -- Normally, you've often seen a status keep coming back and forth in your news feed, causing you to get annoyed like I did. But the question is, why are they coming back to my news feed again and again? Everything is maintained by a system. And if I explain it to you through an example, then it should not be difficult to understand Are you noticing one thing of this nature? If the supply of nutrients in a person's body is not sufficient or if he does not eat properly Then he will get sick due to a lack of various nutrients and if he gets sick he will go to the doctor. The doctor will give him different medicines and different treatments. It's a system. If you don't eat you will get sick, if you get sick to go to the doctor, the doctor will give you medicine and in this way, you will see a better doctor if you don't decrease in a doctor. In this way, you will proceed according to the system step by step. Now let's talk about ...

Field Properties Answer: Each field has several properties. Field properties are displayed depending on the data type. Properties determine the shape of the field, how the data will be displayed and controlled. Some of the properties are discussed below: 1. Field Size: How many characters the field size will be can be determined here. 2. Format: How and in what format the text information will be displayed can be determined from here. 3. Input Mask: There is input mask property for data like Text, Number, Date Time and Currency. How data is inputted in all these fields can be controlled by input mask. 4. Caption: If you want to display the heading for a field in Datasheet view, you have to set this property. Heading can be up to 255 characters. 5. Default Value: Default value can be set for all fields except Auto number and OLE object. If there is any common data for a field, it can be mentioned as Default value, so that when inputting the record, the Default value will be automaticall...