GET BACK YOUR RECYCLE BIN

Trash is used to keep unnecessary files or folders. Some of my blog visitors to ask this question, how can they delete it after Windows XP, get their trash.

You can use this method to retrieve the trash.

Important Notice.

To do this, you will have to modify the registry. It is strongly recommended that if you have some basic knowledge of the registry, then you can try. Otherwise, if you modify the registry incorrectly may be some serious problems. Now, let's try it. Follow these steps to carefully edit the registry, make the Recycle Bin icon reappear on the desktop.

1. Click Start, then click Run

2. Now, enter "regedit", and then click OK.

3. Locate the following registry key

HKEY_LOCAL_MACHINE \ SOFTWARE \ MICROSOFT \ WINDOWS \ Current

Version \ Explorer's \ desktop \ namespace

4. Right-click the section (iii), point to the new registry key, and then click the button.

5. Now type {645FF040-5081-101B-9F08-00AA002F954E}, and then press Enter.

6. After that click on the new {645FF040-5081-101B-9F08-00AA002F954E} key.

7. On the right, double-click the default entry.

8. You will see an "Edit String dialog box." In the Value data box, type Recycle Bin, then click OK.

9. Now close the registry editor and check your desktop.

10. You will see your desktop Recycle Bin icon on the wall.

How to use Whats app in pc and Laptops

                         

Step 1

Download BlueStacks application streamlining player

In order to use WhatsApp on PC or laptop, you need to install an emulator called BlueStacks Android 

application player. There are two versions of the BlueStacks application player, ordinary players and thin application BlueStacks BlueStacks application player. There are faced with BlueStacks application installed ordinary player problem, so I suggest you download and install the application of thin BlueStacks player a lot of people.

Step 2:

Thin BlueStacks Player installed applications

Although the installation to ensure the installation drive with more than 2 GB of free space, otherwise you will get an error. If you get any graphics or drivers ignore warning messages related to it, then select OK.After installation, you will get a screen like the following, now select "Messages" icon and select the WhatsApp

Step 3:

In the PC download WhatsApp

Click on the icon in the PC download WhatsApp. WhatsApp start

Step 4:

WhatsApp installed on your PC

Download WhatsApp You will see the installation status in the following, after WhatsApp now click the icon to open the application WhatsApp Messenger

Step 5:

In the PC configured WhatsApp

As long as you turn on your computer, please tell me, you will see the following screen click "agree and continue"

 as long as you enter your phone number WhatsApp will send you a verification code to confirm that you are the legitimate owner of the phone number, enter your code to further continue. In some cases, it may take a long time to receive the validation code 

using the call function, you know your code, you might think that WhatsApp a PC is not a good idea under the circumstances, but when you face any unexpected problems will be very useful to you smartphone.Do let us know your feedback through your section.Thank.

How is a laptop different from a desktop?

                           

Because laptops are designed for important differences between portability, as well as their and desktop computers. A laptop has an all-in-one design, with a built-in monitor, keyboard, touchpad (instead of the mouse), and speakers. This means that it is fully functional, even when not connected to its peripherals. Build a laptop faster and have fewer ways to get cable. Some newer laptops even have a touch screen, so you may not even need to use a keyboard or mouse.

There is a connection to a conventional mouse, select a larger display, and other peripherals. This is basically your laptop into a desktop computer, there is one major difference: You can easily disconnect peripherals, and took a laptop, wherever you go.

Here, you can use a laptop expect major differences.

Laptop touchpad

AC adapter into the notebook

Touchpad: The touchpad, also known as the touchpad is a touch-sensitive pad that lets you use your finger to control cursor movement by drawing. Many touchpad now includes multi-touch gestures, which allows you to perform specific tasks with multiple finger gestures. E.g., a pinch gesture is often used to zoom in or out.

Battery: Every laptop has a battery that lets you use the laptop when it is not plugged in whenever you plug in a laptop, the battery charging. Another benefit of having a battery is that it can provide backup power to the laptop, if the power is off.

AC adapter: a laptop computer is often called a dedicated AC adapter power cord, which aims to use a specific type of laptop. Some MagSafe magnetic connector cable used to secure the withdrawal, if someone tripping over the power cord. This helps prevent damage to cables and laptops.

Port: Most portable computers are desktop computers have the same type of ports (such as USB), although they usually have fewer ports, to save space. However, some ports may be different, and they may need to use an adapter. For example, the monitor port is usually a Mini DisplayPort, which is normal for a smaller version of DisplayPort.

Computer - How to Buy?

                                  

Monitor

Size - This is the diagonal size of the LCD screen. The larger the area, the greater the image screen. A larger screen is the best movies and games. This will increase productivity.

Resolution - This is the number of pixels on the screen. For example, a 24-inch display is 1920 × 1200 (length x width) and 22-inch display, is 1680 × 1050. High resolution provides better picture quality and a good game experience.

Operating system

Everything is a computer operating system in some form or other major software running on it.

There are three main options: Windows, Linux, Apple OS X.

Linux is free, but people generally do not use it for domestic purposes.

Apple OS X only on Apple's desktop.

Windows 7 desktop users are very popular.

The recent launch of Windows 8, and in the market.

Windows 8 Windows 7 and all the starters, Home Basic, Home Premium, Professional, Ultimate, and multiple versions of the Enterprise Edition.

Memory

RAM is considered a computer memory as the computer's performance is directly proportional to its memory and processor.

Today's software and operating systems that require high memory.

Currently used in RAM DDR 3 1066 MHZ work

Press Windows 7 in, 1 GB RAM is the minimum normally required.

Recommended - 4 GB.

Hard Drive

Hard disk is used for storage purposes. Higher capacity, more data can be stored inside.

Now, one day the computer is equipped with a 500 GB hard drive, expandable to 2 TB.

In most desktop hard drive running at 7200 RPM speed standard performance.

Recommended - 500 GB.

CPU

Frequency (GHz) - which determines the speed of the processor. More speed, better CPU.

Core - Now-a-days are equipped with more than one CPU core, it's like there is on the computer has multiple CPU. Programs can take advantage of multi-core environment to run faster on this machine.

Brand - Intel or AMD. Both are equivalent. Intel in the lead.

Cache - higher L 1, L 2 cache, better CPU performance

Recommended - Intel Core i 3 i 3-32253.30 GHz processor.

Relationship between Hardware and Software

Hardware and software are dependent on each other. They must work together to make a computer to produce useful output.

Software is inseparable from the use of hardware support.

Hardware does not have a program operation can not be used, is of no use.

To obtain complete specific tasks on your computer, related software should be loaded into the hardware

The hardware is a one-time fee.

Software development is very expensive and is an ongoing expense.

Different software applications can be loaded in a different job to run on the hardware.

Software acts as an interface between the user and the hardware.

If the hardware is the computer system of the "heart", then the software is its "soul." Both are complementary to each other.

Computer - Internet and Intranet

Internet

It is a worldwide system that has the following characteristics:

Internet is a network of interconnected computer networks worldwide / global system.

Internet using standard Internet Protocol (TCP / IP) of

Each computer on the Internet is identified by a unique IP address.

The IP address is (eg 110.22.33.114) identifies the location of the computer a unique set of numbers.

A special computer's DNS (domain name server) is used to give names to IP addresses, so that the user can search through a computer name.

For example, DNS server resolves the name http://www.smallshopper.net.com to a specific IP address uniquely identifies this web hosting computer.

Each user can have access to the Internet worldwide.

Intranet

Intranet is a system of more than one PC connected to each other.

In computer intranet are not available to the world outside of the internal network.

Typically, each company or organization has its own Intranet network and membership / that company employees can access their internal computer networks.

Each computer in the Intranet is also identified as an IP address is a computer in the LAN is unique.

Computer - Operating System

It is a program with the following features:

An operating system is a program that, as between the software and computer hardware interfaces.

It is a set of integrated, specially planned for the overall management of resources and computer operations.

It is the control and monitoring reside on a computer, including application programs and other system software of all other programs dedicated software executed.

Operating system goals

Causing the computer system to facilitate an efficient way to use

To hide the hardware details from the user's resources

Provides the user interface to the computer system convenient to use

It easier for users to access and use as an intermediary between other hardware resources and its users and make it

Resources to manage computer systems

In order to track what resources to use, who granted the requested resource is based on the use of resources and mediation programs and users of different conflicting demands

In order to provide users and programs between efficiency and equity of resource sharing

Computer Network

What is a computer network?

Where in the computer network is a plurality of computers are connected to each other, in order to share information and resources of the system.

Characteristics of computer networks

Shared resources from one computer to another

Files created, and store them on a computer, to access these files from another computer over a network connection (s) Printer, scanner or fax machine connected to a computer network, allowing the network to other computers through a network of machines.

The following is the hardware needed to set up a computer network list.

Network Cable

Distributors

Router

Built-in network card

Network Cables

Network cables are used to connect computers. The most commonly used cable is Category 5 cable rj-45.

Distributors

A computer can be connected via the serial port to another one, but if we need to connect multiple computers to generate a network, the serial connection will not work. The solution is to use a central agency, which other computers, printers, scanners, etc. can be connected, then the agency will manage or distribute network traffic.

Router

A router is a device acts as the type of computers and other devices are part of a network, wherein the center point. Router is equipped with a hole called port and the computer, and connect to other devices using a network cable router. Now give the day a router to use this computer may not have any physical cable connection in wireless mode.

Computer - Software

Software is a set of programs, which are designed to perform a well-defined function. A program was written to solve a specific problem sequence of instructions.

There are two types of software

System Software

Application software

System Software

System software is a collection of design, operation, control and extend the processing power of the computer program itself. System software is usually manufactured by computer. These software products include low-level language for writing programs, and hardware at a very basic level of interaction. System software as the interface between the hardware and the end user.

Some examples of system software is the operating system, compiler, translator, assembler, and so on.

Application software

The characteristics of the system software as follows:

Shut down the system

Fast

Difficult to design

Difficult to understand

Less interaction

Smaller size

Difficult to operate

Generally written in low-level language

Application software

Application software products are designed to meet the specific needs of the environment in particular. All software applications in the computer lab can be included in the preparation of the application software category.Applications may include a single program, such as a Microsoft Notepad for writing and editing simple text. It can also be set by the program, commonly referred to as a package, which together to complete a task, such as a spreadsheet package.

Examples of applications are the following:

Microsoft Office Suite software

Microsoft Word

Microsoft Excel,

Microsoft Powerpoint

Computer Ports

What is a port?

Port:

Is to use the external device can be connected to a physical machine stops.

It can also be a flow of information from the Internet to your computer or via the program stops.

Here are a few important types of ports:

Serial Port

For an external modem and an old computer mouse

Two versions: 9-pin, 25-pin models

Data travels to 115 kilobits per second

Parallel port

The use of scanners and printers

Also known as the printer port

25-pin models

Also known as IEEE1284 compatible Centronics port

PS / 2 port

Use an old computer keyboard and mouse

Also known as the Mouse Port

Most of the old computer provides two PS / 2 interface, respectively, for the mouse and keyboard

Also known as IEEE1284 compatible Centronics port

Universal serial bus (or USB) port

It can be connected to a variety of external USB devices such as external hard drives, printers, scanners, mice, keyboards and so on.

According to reports, in 1997.

Most computer provides two USB ports, as a minimum.

Data traveling 12 megabytes per second

USB-compatible devices can be powered from the USB port

VGA port

Monitor connected to the computer graphics.

There are 15 holes.

Similar to the serial port connector, but the serial port connector pins have, it has holes.

Power Connector

Three-prong plug

Connected to a wall outlet into a power bar or the computer's power cord

FireWire port

Transfer large amounts of data at very fast speeds.

Connect the camcorder to the computer and video equipment

Data travels 400 to 800 megabits per second

Invented by Apple

Three variants: 4-pin FireWire400 ports, 6-pin connector and a 9-pin FireWire800 FireWire400 interface

Modem Port

Connecting the PC modem telephone network

Ethernet port

And high-speed Internet connection to the network.

Connect the network cable to the computer.

This port is located on the Ethernet card.

Data travels at 10 megabits to 1000 megabits per second depending on network

Computer Motherboard

Board as a single platform to connect all of the computer components together. A motherboard connector CPU, memory, hard drives, optical drives, video cards, sound cards, and other ports, and either directly or through cable expansion card. It can be seen as the backbone of a computer.

Features of Motherboard

A motherboard is equipped with the following features:

Motherboard vary greatly supports various types of components.

Typically memory motherboard supports a single type of CPU and several types.

Graphics card, hard drive, sound card must be properly compatible with the motherboard

Motherboards, chassis, and power must be compatible to work together properly.

Top manufacturers

Intel

ASUS

AOpen

Abit

Biostar

Gigabyte

MSI

Motherboard description

Motherboard installed in the chassis, and by connecting through a pre-drilled small screws securely. Motherboard contains ports to connect all the internal components. It provides a single CPU socket, and for memory, typically one or more slots are available. The motherboard provides port connection floppy, hard drives and optical drives via a ribbon cable. Motherboard with a fan and a special design of the power port.

There is a video card, sound card and other peripheral expansion card slot can be used to connect to the front of the motherboard.

On the left, the board carries a lot of ports to connect the monitor, printer, mouse, keyboard, speakers, and network cable. The board also provides a USB port that allows compatible devices to plug-in / plug out of date, for example, to connect a pen drive, digital camera and so on.

Computer - Read Only Memory

On behalf of read-only memory ROM. From which we can only read, but can not write memory on it. This type of memory is non-volatile. In the manufacturing process information is permanently stored in memory such as. A ROM, such instructions needed to start the computer store. This operation is called bootstrapping. ROM chip is not only used in the computer, but also in other electronic items such as washing machines and microwave ovens.

The following are the various types of the ROM

MROM (masked ROM)

First ROM is hardwired contains program set of data or instructions means. These types of masked ROM is referred to as the ROM they are inexpensive.

PROM (Programmable Read Only Memory)

PROM is read-only memory can only be modified once the user. Users buy a blank and enter with the required PROM PROM programming content. PROM chip inside which opened a small fuse was burned when programming. It can be programmed only once, rather than erased

EPROM (Erasable and Programmable Read Only Memory)

The EPROM can be obtained by exposing it to ultraviolet light for up to 40 minutes duration is erased. Typically, an EPROM eraser implement this feature. During programming, charges are trapped in the insulated gate region. The charge holding more than ten years, because there is no charge leakage paths. Erase the charge, UV through a quartz window (cover). The exposure to ultraviolet light to dissipate the charge. In normal use quartz lid sealed with stickers.

EEPROM (Electrically Erasable and Programmable Read Only Memory)

The EEPROM programming and erasing electricity. It can be erased and reprogrammed about 10,000 times. Both the erase and programming, about 4 to 10ms (milliseconds). In the EEPROM, any position can be selectively erased and programmed. A byte erasable EEPROM time, rather than erase the entire chip. Thus, the process of reprogramming is flexible, but slower.

Computer - Random Access Memory

RAM (Random Access Memory) is used to store the result data, and program of the internal memory of the CPU. This is a read / write memory for storing data, until the machine is working. Once the machine is turned off, the data is erased.

In the RAM access time is independent of the number of other positions within the same memory address of each storage location is easy and the time required to reach. Data in RAM random access, but it is very expensive.

Is stored in the RAM when it loses volatile, i.e. the data, we turn off the computer, or if there is a power failure. Therefore, a backup power system (UPS), is often used and the computer. RAM is small, the amount of both in terms of its physical size and the data can be accommodated.

Are two types of RAM
Static RAM
Dynamic RAM

Static RAM (SRAM)

Digital still represent the contents of memory, as long as the power supply. However, the data when the power is down due to the volatile nature of the loss. Using 6-transistor static RAM chip and no capacitor matrix. Transistor does not require power to prevent leakage, so static RAM does not need to have to be refreshed periodically.

Because in the matrix of additional space, the same amount of storage space used by static RAM more than DRAM chip, so that the manufacturing cost is higher. Therefore,  static RAM  is used as a cache memory, and has a very fast access.

Dynamic RAM (DRAM)

In DRAM, unlike static RAM  must be constantly refreshed to keep the data. This is achieved by rewriting the data on a memory refresh circuitry done hundreds of times per second. DRAM memory is used in most systems, because it is inexpensive and small. All DRAM memory cell is a capacitor composed of them and a transistor.

Computer - Memory

Memory is like a human brain. It is used for storing data and instructions. Computer memory is a memory space of the computer, where the data is to be processed and the desired storage location of the process instruction. The memory is divided into a large number of small parts called cells. Each location has a unique address or cell varies from zero to the memory size minus 1. For example, if your computer has 64K words, then the storage unit has 64 * 1024 = 65536 memory location. Address these places, from 0 to 65535.

Three main types of memory is

Cache
Main memory / main memory
Auxiliary storage

Cache
Cache memory is a semiconductor memory of a very high speed, which can speed up the CPU. It is as a buffer between the CPU and main memory. It is used to store data and programs, which are those parts of the CPU of the most frequently used. Each part of the data and procedures from the disk is transferred to the cache memory by the operating system, CPU can access them from there.

Main memory (main memory)

The main memory to store data and instructions only working properly which computer. It has a capacity limit, and when the power is turned OFF data loss. It generally consists of a semiconductor device. These memories are not as fast as registers. Data and instructions to be processed resides in main memory. It is divided into two sub-RAM and a ROM.

Auxiliary storage

This type of memory is also called external memory or non-volatile. It is slower than main memory. These are used to permanently store data / information. CPU does not access directly the opposite of these memories, they are accessed through the input and output process. Two memory contents is first transferred to the main memory, the CPU can then access it. For example: disk, CD-ROM, DVD and so on.

Computer - Output Devices

Here are a few that are important to the output device for use in a computer.

Monitor

Plotter
Printer

Monitor

Monitor, commonly known as visual display unit (VDU), is the main output device of the computer. It forms an image from a fine dot, i.e., called pixels arranged in a rectangular shape. The sharpness of the image depends on the number of pixels.

There are two viewing screen for a display.
A cathode ray tube (CRT)
Flat panel displays

A cathode ray tube (CRT) display

The CRT monitor is a small picture elements called pixels. The smaller the pixels, image clarity, or the better the resolution. It takes more than one pixel lighting, the overall quality of the formation, such as helping the letter "E" word.
A limited number of characters can be displayed at one time on the screen. Screen can be divided into a series of character blocks - a fixed position on the screen, a standard character can be placed. Most of the screen is capable of displaying the data level 80 characters and 25 vertical lines. There are some disadvantages of the cathode ray tube:
Large
High-power
CRT monitors

Flat Panel Display Monitor

The flat-panel display refers to a class of video device, in comparison to CRT reduce the size, weight and power requirements. You can hang on the wall, or to wear on your wrist. Current flat panel display applications include calculators, game machines, monitors, notebook computers, graphic display.


Printer

Output means of the printer, which is used to print the information on paper.

There are two types of printers:
Dot matrix printer
Non-dot matrix printer

Computer - Input Devices

Following are few of the important input devices which are used in a computer:

• Keyboard
• Mouse
• Joy Stick
• Light pen
• Track Ball
• Scanner
• Graphic Tablet
• Microphone
• Magnetic Ink Card Reader(
• Optical Character Reader(OCR)
• Bar Code Reader
• Optical Mark Reader 

Keyboard

The keyboard is the most common and popular input device, it can help in entering data into the computer. The keyboard layout is such a traditional typewriter, although providing additional functionality to perform some additional keys are used.

84-key keyboard in two sizes or 101/102 key, but now 02-11-22104 keys or 108 keys are also available for Windows and the Internet.

Mouse

The mouse is the most popular pointing device. It is has a round ball at its base, it detects the movement of the mouse, and sends a corresponding signal, CPU when the mouse button is pressed a small palm-sized box of a very famous cursor control device.

Usually it has two buttons called the left and right buttons, a wheel between this button. Mouse can be used to control the position of the cursor on the screen, but it can not be used to enter text into the computer.

Advantages

Easy to use

Not very expensive

Move the cursor over the arrow keys on the keyboard to be fast.

Joystick

The joystick is also used to move the cursor position on the monitor screen to indicate the device. It is a rod having a spherical ball at its two lower and upper ends. The lower spherical ball in the socket move. You can move the joystick in all four directions.

Joystick function is similar to a mouse. It is mainly used for computer-aided design (CAD) and playing computer games.

Computer - CPU(Central Processing Unit)

The CPU contains the following features:

CPU is regarded as the brain of the computer.
CPU performs all types of data processing operations.
It stores data, intermediate results, and instructions (program)
It controls the operation of all components of the computer.

                      

There are three components of the CPU itself.

Memory or storage unit
Control unit
ALU (arithmetic logic unit)


Memory or storage unit
This unit may store instructions, data and intermediate results. When the unit is required to provide information to the other computer units. It is also known as the internal storage unit or the main memory or primary memory or a random access memory (RAM).

Its size will affect the speed, strength and ability. Main memory and secondary memory are two types of memory in a computer. Functional storage units are:

All its stored data, and processing instructions necessary.
It stores the intermediate results of processing.
The end result is stored before it is processed, the results are released to the output device.
All inputs and outputs are transmitted through the main memory.

Control unit
Operation of all components of the computer control unit, but does not perform any actual data processing operations.

Features of this machine are:
Other unit which is responsible for the transmission of control data and commands between computers.
It is the management and coordination of all units of the computer.
indicating that it obtained from the memory, interpret them, and the instructions of the computer.
With the input / output device for data transfer from memory or communicate results.
It does not handle or store data.

ALU (arithmetic logic unit)
The unit consists of two sections, namely

Arithmetic unit
Logical part


Arithmetic Division
Function calculation unit is to perform arithmetic operations like addition, subtraction, multiplication and division. All complex operations are accomplished by repeating the above action.

Logical part
Logic part of the function is to perform logical operations, such as comparing, merging selection, matching and data.

Computer - Components

Computer system consists mainly of four basic unit. an input unit, a storage unit, the central processing unit and an output unit. The central processing unit further comprises: an arithmetic logic unit and the control unit, as shown in the figure: the computer to perform the functions of five business regardless of its size or make of. These are
• It takes as input data or instructions
• It stores data and instructions
• It processes data in accordance with instructions
• It controls all operations within a computer
• It gives the results in the form of the output

Input unit
This unit with these help, we enter data into a computer device. This unit allows contact between the user and the computer. Input Devices translate information into a form understandable by the computer.

CPU (Central Processing Unit)

CPU is regarded as the brain of the computer. CPU performs all types of data processing operations. It stores data, intermediate results, and instructions (program). It controls the operation of all components of the computer.

CPU itself has the following three components
ALU (arithmetic logic unit)
Memory
Control unit


The output unit
Consisting of help output unit, where we information equipment from the computer. This unit is a link between the computer and the user. Computer output device to convert the output to the user's understanding of the form.

What is a computer?

A computer is an electronic device to manipulate information, or data. It has storage, retrieval, and processing data capabilities. You can enter a document with a computer, send e-mail and browse the Web. You can also use it to handle spreadsheets, accounting, database management, presentations, games, and more.

Superiority
The following list indicates the advantages of today's arena of computers.

High speed
Is a very fast computer equipment.
It is possible to perform the calculation of very large amounts of data.
The computer has speed in microseconds, nanoseconds or even picosecond units.
Compared to men who will spend a few months to do the same task, it can perform millions of calculations in a few seconds.

Accuracy
In addition to being very fast, the computer is very accurate.
This calculation is 100% error free.
Executed on a computer provided that the correct input has been given 100% accuracy rate of all jobs.

Storage capacity
Memory is a very important characteristic of the computer.
Computer has more storage capacity than humans.
it can store large amounts of data.
It can store any type of data, such as images, video, text, audio, and many others.

Diligence
Unlike humans, a computer is free from monotony, fatigue, lack of concentration.
It can work without any errors and boring.
It can do the same speed and accuracy of duplication of effort.

Versatility
A computer is a very versatile machine.
Computer is very flexible conduct work to be done.
The machine can be used to solve problems in various fields.
In one case, it can solve a complex scientific issues and the very next moment it can play the card game.

Reliability
A computer is a reliable machine.
Modern electronic components have a long life.
Computer design, easy maintenance.