Input Devices and Output Devices

Input devices 
Input device adalah sebarang alat yang menghantar data kepada komputer. Sebagai contoh, mouse dan keyboard pada komputer. Dalam bahasa yang senang difahami, input device ini adalah sebarang alat yang kita dapat pegang untuk menghantar maklumat ke dalam komputer ataupun sebarang alat elektonik. Contoh bagi input device adalah

1. Webcam
    -Home security system There are a lot of programs can be found in the market which can       turn        these webcam into a remote security system. Once we install the programs, we can deploy                  them to stream live video and monitor the feed at a long distance.
    -Optical character recognition OCR or optical character recognition using a webcam is not really          a good way as the image quality of most of these devices is general. We can take an image with          the webcam and then use some Microsoft software like Microsoft Document Imaging, Google            Docs and Abbyy FineReader Online to convert images to text. We can also try Evernote (free              from www.evernote.com), as it can read the image taken from the webcam and turns the image            into investigable text.
    -Bar code reader Reading bar code or QR code is not a hard thing using a smartphone and a free          app. In fact, we can also do the same thing on the PC by using a webcam. We just require to                download and install bcWebCam (free from www. bcwebcam.de) and it will automatically                  connect to our webcam to show the feed.

2. Graphic Tablets
    A graphics tablet, also called a digitizer, is an electronic plastic board that detects and converts           movements of a style or digital pen into signals that are sent to the computer. Uses of graphic tablet     -Used by artists which allow them to draw a picture onto computer without using a mouse or                keyboard.
    -It consists of a flat, touch-sensitive pad and a drawing devices, either a pen or stylus. The tablet          collect the information from the pen’s tip in order to position and other information like pressure.
    -The tablet makes it easier for the people than working on the computer with a keyboard or                  pointing device. This is because it is less hassle when you can just do it straight into a touch screen      tablet.

Output devices
Output device adalah sebarang alat yang menerima maklumat daripada komputer yang selalunya digunakan untuk tayangan ataupun pembentangan. Sebagai contoh, imej yang ditunjukkan oleh inkjet printer. Contoh lain bagi output device adalah monitor dan pencetak.

1. Speakers
    Speakers are one of the most common output devices used with computer systems. Some                     speakers are designed to work specifically with computers, while others can be connected to any         type of sound system. Regardless of their design, the purpose of speakers is to produce audio               output that can be heard by the listener.
    Uses of speakers
    -To produce audio output that can be heard by the listener.
    -Digital speakers must first convert the digital input to an analog signal, then generate the sound          waves.
    -Many speakers include multiple speaker cones for different frequency ranges, which helps                  produce more accurate sounds for each range.
    -Speakers typically come in pairs, which allows them to produce stereo sound, which produces            more natural sound output, transmit audio on two completely separate channels

2. Data projector
    A data project is used to project the contents of a computer screen onto a big screen  or wall so that     a large amount of audiences can see the information. Normally, data projectors are popular for use       with presentation software. A data projector is used with either laptop or desktop computers. The       data projectors are usually connect with laptop or desktop computers and also video equipment in       classroom and business meeting.
    Uses of Data Projectors
    -Presentation software such as allows a user to create slide shows of photos, type written                      information and display graphs.
    -Teachers in high school and college make extensive use of data projectors to give notes or                  lectures, as do businesspeople making presentations to co-workers or clients.
    -When connected to a computer or smartphone, a data projector which has a high digital editing          capability, will help the users to show their presentations to specific contexts, update their                    numbers to reflect recent changes and easily project changes to the audiences.

Di sini saya selitkan video bagi 'input and output devices' yang telah kami reka bersama yang berciri futuristik.