Output device

monitor
computer monitor is one type of soft-copy devices, because the output is in the form of an electronic signal, in this case is an image that appears on the screen. Images that appear are the result of processing the input data or information. The monitor has a variety of screen sizes like a television. Each brand and size of the monitors have different resolution levels. This resolution was the one who will determine the sharpness of the image can be displayed on the monitor screen. The types of monitor is now very diverse, ranging from large shapes with convex screens, up to a thin shape with a flat screen (flat).

Processing device

Power Supply

Lower supply providing electric current to various devices CPU power supply converting electricity and provide power to use the computer fixed. Supply determine the quality of power quality performance of the computer. Resources for 300-400 Watt supply power supplied is usually enough for the computer used to typing or graphic. Meanwhile, power 400-500 watts is required if the computer works to use a lot of use Peripherals 

RAM (Random Access Memory) - Memory

Hardware

Digital Camera

Technological developments have been so sophisticated that computers capable of receiving input from the camera. The camera is called the Digital Cameras with better image quality and better than how to copy images using a scanner. Sharpness of images from digital cameras is determined by its pixels. The ease and practicality of this tool is very helpful many activities and jobs. Digital cameras require no film camera as usual. Pictures taken with a digital camera are stored into the memory of the camera is in the form of files, and can be moved or transferred to a computer. Digital cameras on the market today there are various types, ranging from the type of camera to take pictures until the camera is static that can be recording live or moving images such as video.

digital camera

Microphone and Headphone

Scanner

Scanner is a tool that can serve to to copy or copy images or text which is then stored in computer memory. From next computer memory, stored in a hard disk or floppy disk. This scanner functions like copy machines, photocopiers difference was the result can be seen on the paper while the scanner results can be displayed via the monitor in advance so we can make improvements or modifications and can then be stored back in the form of text files or image files. In addition there is also an image scanner to scan commonly used to detect the computer answer sheet. Scanners used to scan the computer answer sheet is commonly used IR SCAN to LJK (Computer Answer Sheet) on the general tests and the National Examination. Scan type consists of light sensors called Optics, which can recognize the type 2B pencil. Scanners on the market is a scanner to copy an image or photo and usually also equipped with OCR (Optical Character Recognition) to copy or copy an object in text form.

Joy Stick and Barcode reader

Joy Stick

These devices are commonly used in games (games) computer. Joy Stick is usually shaped rod, while the games are usually paddle-shaped or square box made ​​of plastic comes with buttons that will govern the motion of an object in a computer.

Touchpad and Lightpen

Touchpad
Enter this unit can usually be found on laptops and notebooks, by using your fingertips. Usually this unit can be used instead of a mouse. In addition to the touchpad is a model similar units enter the pointing stick and trackball.

Touch pad

Mouse

Mouse is one input unit (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 are generally only used the left button and right button. Currently the mouse is also equipped with rollers button (scroll), where the location of this 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 at a designated object of this emphasis will be ignored. In addition there are other terms that are called by dragging (drag) 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 referred to as double-click (double click) while pressing the right mouse button once called by right-clicking (right click) Mouse port is composed of several serial mouse, mouse ps / 2, usb and wireless .

Mouse wireless

Keyboard

Keyboard input is the most important units in a data processing with computers. The keyboard works include letters, numbers, special characters as well as a medium for the user (users) to perform other commands are required, such as saving files and opening files. The creation of a computer keyboard comes from the typewriter models which are created and patented by Christopher Latham in 1868, and in 1887 produced and marketed by the Remington company. The keyboard is use now this is kind of QWERTY, in 1973, the keyboard was unveiled as a keyboard standard 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, namely port serial, ps2, usb and wireless.

Type of Keyboard :