This unit serves as a medium for loading data from the outside in a memory and processor to be processed to Produce the required information. Input devices orinputunit the which is Generally used personal computer (PC) is a keyboard and mouse,keyboard and mouse is a unit That connects the user (users) with a computer. InAddition there is a joystick, the which is used for playing games or games with acomputer. Then thescanner, to take pictures as digital images That can be manipulated later. Touch panel, with the touch of a finger users can perform a file access process.Microphone, torecord the sound into the computer.
Data is Entered into the computer system can be shaped input signal input and maintenance. Entered form data input signal into the computer system, program while maintenance input form used to process the Data Entered. So in Addition to input device used to input the data can also be used to enter the program. By its nature, the input devices can be classified into two general categories:• Equipment direct input, the input is processed Entered directly by the processing tool. For example: keyboard, mouse, touch screen, light pen, graphics digitizer tablet, scanner.
• Equipment not a direct input, input via a particular medium before an input isprocessed by a processing tool. For example: the punched card, floppy disk, hard disk.
Unit of input or input device consists of several kinds of devices, namely:
a. keyboard
Keyboard input is the most important unit in a data processing with computers. The keyboard works include letters, numbers, special characters as well as a medium for theuser (users) to perform other commands are required, such as saving a file and open the file. Creation of a computer keyboard comes from the model of typewriter isinvented and patented by Christopher Latham in 1868, and in 1887 the companymanufactured and marketed by Remington. The keyboard is digunakanan now this is kind of QWERTY, in 1973, was inaugurated as the keyboard standard keyboard ISO(International Standards Organization). The number keys on the keyboard consists of104 keys. The keyboard is now that we know has some kind of port, the serial port, ps2,usb and wireless.
keyboard qwerty
Type of Keyboard:
1.) QWERTY
2.) Dvorak
3.) KLOCKENBERG
Keyboard typically used is the type QWERTY keyboard, which is shaped like the keyson the typewriter. The QWERTY keyboard has four parts:
1. typewriter key
2. numeric key
3. function key
4. special function key.
b. mouse
Mouse is one input unit (input device). This tool is a function pointer or cursor to movequickly. In addition, orders can be as practical and faster than the keyboard. Mousebegan to be used to its full potential since the operating system has been based GUI(Graphical User Interface). electrical signals as a mouse input device is generated by asmall ball inside the mouse, according to the shifting or movement. Most of the mouseconsists of three buttons, two buttons are generally only used the left button and right button. Currently the mouse is also equipped with rollers (scroll), where the location ofthe button is 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 if not on a designated object of this emphasis will be ignored.There are also other terms that are called by dragging (drag) is pressing the left mouse button without releasing the while being moved. This drag will cause the object to bemoved or copied to other objects and other possibilities. The emphasis of the left mouse button twice quickly and regularly referred to by double-clicking (double click)while pressing the right mouse button once called by right-clicking (right click) Mouseport is composed of several serial mouse, mouse ps / 2, USB and wireless .
Mouse is one input unit (input device). This tool is a function pointer or cursor to movequickly. In addition, orders can be as practical and faster than the keyboard. Mousebegan to be used to its full potential since the operating system has been based GUI(Graphical User Interface). electrical signals as a mouse input device is generated by asmall ball inside the mouse, according to the shifting or movement. Most of the mouseconsists of three buttons, two buttons are generally only used the left button and right button. Currently the mouse is also equipped with rollers (scroll), where the location ofthe button is 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 if not on a designated object of this emphasis will be ignored.There are also other terms that are called by dragging (drag) is pressing the left mouse button without releasing the while being moved. This drag will cause the object to bemoved or copied to other objects and other possibilities. The emphasis of the left mouse button twice quickly and regularly referred to by double-clicking (double click)while pressing the right mouse button once called by right-clicking (right click) Mouseport is composed of several serial mouse, mouse ps / 2, USB and wireless .
Enter this unit can usually be found on laptops and notebooks, by using your fingertips.Normally this unit can be used instead of a mouse. In addition to the touchpad is a model of similar units that enter the pointing stick and trackball.
Touch Pad
This tool is commonly used in games (games) computer. Joy Stick is usually a stick,while the games are usually paddle-shaped or square box made of plastic comes withbuttons that will govern the motion of an object in a computer.
(source:http://belajar-komputer-mu.com)
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