Basic Computer Tools

    Monitor, the output is temporary, because only looked for a while just on the screen. Its function is to see the results of input or programs running.

 

CPU (central processing unit)

 Central processing unit (CPU) is part of a computer system that perform the instructions of a computer program, and is the main element performs the function of a computer or other processing device. Central processing units execute each instruction in program order, to perform arithmetic operations, logic, and input / output from the system basis. This term has been used in the computer industry at least since the early 1960s. [1] The form, design and implementation of CPUs have changed dramatically since the early examples, but their basic operation remains the same.

    Initial CPU designed specifically as part of a larger, sometimes one-of-a-kind computer. However, this method is expensive designing custom CPUs for a particular application generally has provided a way for the development of mass production of processors made for one or many purposes. The trend began in the era of standardization generally discrete transistor mainframes and minicomputers and has rapidly accelerated with the popularization of the integrated circuit (IC). IC has allowed increasingly complex CPUs to be designed and manufactured to tolerances on the order of nanometers. Both the miniaturization and standardization of CPUs have increased the presence of digital devices in modern life far beyond the limited application of specialized computing machines. Modern microprocessors appear in everything from cars to mobile phones and toys.

Keyboard

   The keyboard is the most Important input unit in a data processing by computer. The keyboard works include letters, numbers, special characters as well as a medium for the user (users) to perform other commands are needed, Such as saving files and opening files. The creation of a computer keyboard typewriters from the model created and Patented by Christopher Latham in 1868, and in 1887 the company manufactured and marketed by Remington. The keyboard is used now this is kind of QWERTY, in 1973, was unveiled as a standard keyboard keyboard ISO (International Standards Organization). Number of keys on the keyboard consists of 104 keys. The keyboard Now That We Know has some kind of port, ie serial port, ps2, usb and wireless

Mouse

    Mouse is one unit of input (input device). The function of this tool is to move a pointer or cursor quickly. In addition, orders can be as practical and faster than with a keyboard. Mouse began to be used optimally since the operating system has been based GUI (Graphical User Interface). electrical signals as a mouse input device is generated by a small ball inside the mouse, according to the shifting or movement. Most of the mouse consists of three buttons, two buttons which are generally only used the left button and right button. Currently the mouse is also equipped with rollers button (scroll), where is this button located in the middle. The term suppression is called by clicking the left button (Click) where the emphasis is going to function when the mouse is on a designated object, but when not on a designated object of this emphasis will be ignored. In addition there are also other terms that are called by sliding the (drag) that is pressing the left mouse button without releasing it with while being moved. This drag will cause the object to be moved or copied to other objects and other possibilities. The emphasis of the left mouse button twice quickly and regularly called double click (double click) while pressing the right mouse button once called by right-clicking (right click) Mouse consists of multiple ports is a serial mouse, mouse ps / 2, usb and wireless 

Speaker

     Loudspeakers (English: loud speaker or speakers) is a transducer that converts electrical signals into audio frequency (sound) by means of components that form the membrane vibrates.
 

    In every system of sound, best sound quality depends on the determination of the speakers. The best recording, encoded into a high-quality storage devices, and played with a deck and upper-class speakers, still the result will sound ugly when associated with low quality speakers. On the speaker system is an electronic component that carries signals, store them in CDs, tapes, and DVDs, then returned again in the form of actual sounds that we can hear. In this article, I will explain how a speaker to do the process. They also discussed why the speakers are designed differently and how these differences lead to different effects on quality.  

    

    Speaker is an amazing technology that delivers a huge impact on our culture. But besides all that, the actual speaker is simply a tool that is very simple.

Printer

 

Printer Technology
    From time to time, printer technology continues to evolve so inevitably for someone who is always associated with computers and other equipment must keep abreast of these developments. The printer is in Indonesian language means the printer (print device). The term 'printer' is now often used to refer to a print device connected to the computer. To connect the printer to the computer needed a cable that connects from the printer to the computer CPU. Currently, the brand products are frequently used printers include Epson, Hewlett Packard (HP), Canon, Lexmark and many more. To know more clearly about the function, type of printer and the workings of the printer, please read the continuation of this article.
Function printer
   The printer is one of the hardware (hardware) connected to a computer and has the function to print text, images and more views from computer to paper or similar media. The term is known at a resolution of the printer is called dpi (dots per inch). The point is the large number of points in the area of ​​1 inch. The higher the resolution the better the resulting mold. Conversely, if the resolution is low then the printout would be bad / not good.