Input Devices
Keyboard (Human-captured)
Modelled after the typewriter, the computing keyboard is a rigid board which has an arrangement of buttons or keys assembled onto it. Most buttons on the keyboard is special as it has a character engraved onto it and represents a written symbol. However this does not apply to all keys as some symbols require the user to press or hold more than one key simultaneously or in sequence. Some keys on the keyboard such as F1 affect the operation of the computer and does not produce symbols. There are other other alternatives to the regular keyboard such as the wireless keyboard, foldable keyboard, and even the virtual or touchscreen keyboard. Keyboards with extra keys such as the multimedia or gaming keyboard are in existance as well.
The mouse, a casing that consists of two or more buttons which user's hold beneath their hands,
functions as a pointing device.
This little device works by detecting two-dimensional motion relative to its supporting surface and moves the pointer or arrow that is displayed on the monitor. In simple words, move the mouse left and witness the pointer go left. Move right and right the pointer goes. Most modern mouses, if not all of them, features other elements besides buttons such as the wheel which enables the user to perform various functions such as scrolling up and down a page with ease. If you're wondering about it, yes, the mouse got its name due to its resemblance with their mammal counterpart.
Joystick (Human-captured)
The batang gembira, used mostly for playing certain computer games got its idea adopted from the "joystick" of aircrafts and it is no coincidence. Technically, a joystick is an input device that is a stick pivoting on the base which is full of buttons and a trigger. Almost similar to the mouse, a joystick reports its angle and direction to the device it is controlling. So tilt the stick forward, and witness your in-game pointer moving up. However some programs which are mostly gaming programs enable a "reverse" system which interchange the up and down directions. In such cases, tilting the stick forward will cause the pointer to go downwards. It would seem cool to play first person shooter games or FPS with a joystick, but the combination of the mouse and keyboard provides more accuracy for control of your character or arms.
Also known as the mike or mic, the microphone is an acoustic-to-electric input device that converts sound waves into an electric signal. On the stage, the microphone is the ultimate weapon in every vocalist's arsenal. On the workstation, it is a device used by audiences to converse with one another through the online world. It can also be used to record data in the form of sound. The computing microphone brings convenience into our lives because with it we do not have to rely on typing all the time and reduce finger fatigue. The microphone enables gamers to strategise more efficiently and college students to discuss group fun tasks through the internet in their individual workstations without having to be physically together.
Definition? Pocket-sized cards embedded with integrated circuits which processes information. The smart card is also referred to as chip card or integrated circuit card (ICC). With ICC applications with as the cash register, the smart card can recieve processed input and be delivered as an output. These PVC or ABS plastic cards may be embed a hologram to avoid counterfeiting. The benifits of these smart cards is that it allows effective business transactions due to flexibility, security as well as minimising human intervention.
Input devices are pieces of computer hardwares that are used to enter or provide data for processing in the CPU. These devices can be broken down into two categories which are the human-captured and machine-captured input devices. Human-captured input devices such as the mouse and keyboard are used to manually enter data by the user whereas machine-captured input devices like the smartcard reads and translates data given by electronic devices into digital form before entering entering the data into the computer. Below are some in-depth information on some common input devices.
Keyboard (Human-captured)
Modelled after the typewriter, the computing keyboard is a rigid board which has an arrangement of buttons or keys assembled onto it. Most buttons on the keyboard is special as it has a character engraved onto it and represents a written symbol. However this does not apply to all keys as some symbols require the user to press or hold more than one key simultaneously or in sequence. Some keys on the keyboard such as F1 affect the operation of the computer and does not produce symbols. There are other other alternatives to the regular keyboard such as the wireless keyboard, foldable keyboard, and even the virtual or touchscreen keyboard. Keyboards with extra keys such as the multimedia or gaming keyboard are in existance as well.Mouse (Human-captured)
The mouse, a casing that consists of two or more buttons which user's hold beneath their hands,functions as a pointing device.
This little device works by detecting two-dimensional motion relative to its supporting surface and moves the pointer or arrow that is displayed on the monitor. In simple words, move the mouse left and witness the pointer go left. Move right and right the pointer goes. Most modern mouses, if not all of them, features other elements besides buttons such as the wheel which enables the user to perform various functions such as scrolling up and down a page with ease. If you're wondering about it, yes, the mouse got its name due to its resemblance with their mammal counterpart.
Joystick (Human-captured)
The batang gembira, used mostly for playing certain computer games got its idea adopted from the "joystick" of aircrafts and it is no coincidence. Technically, a joystick is an input device that is a stick pivoting on the base which is full of buttons and a trigger. Almost similar to the mouse, a joystick reports its angle and direction to the device it is controlling. So tilt the stick forward, and witness your in-game pointer moving up. However some programs which are mostly gaming programs enable a "reverse" system which interchange the up and down directions. In such cases, tilting the stick forward will cause the pointer to go downwards. It would seem cool to play first person shooter games or FPS with a joystick, but the combination of the mouse and keyboard provides more accuracy for control of your character or arms.Microphone (Human-captured)
Also known as the mike or mic, the microphone is an acoustic-to-electric input device that converts sound waves into an electric signal. On the stage, the microphone is the ultimate weapon in every vocalist's arsenal. On the workstation, it is a device used by audiences to converse with one another through the online world. It can also be used to record data in the form of sound. The computing microphone brings convenience into our lives because with it we do not have to rely on typing all the time and reduce finger fatigue. The microphone enables gamers to strategise more efficiently and college students to discuss group fun tasks through the internet in their individual workstations without having to be physically together.Smartcard (Machine-captured)
Definition? Pocket-sized cards embedded with integrated circuits which processes information. The smart card is also referred to as chip card or integrated circuit card (ICC). With ICC applications with as the cash register, the smart card can recieve processed input and be delivered as an output. These PVC or ABS plastic cards may be embed a hologram to avoid counterfeiting. The benifits of these smart cards is that it allows effective business transactions due to flexibility, security as well as minimising human intervention.Scanners (Machine-captured)
The computing scanner is an input device that scans objects or images that are placed on its glass window and converts it into a digital image which is saved in the memory of the computer. Modern scanners such as the desktop scanner or the flatbed scanner which are commonly found in offices uses a couple-charge device (CCD) or a Contact Image Sensor (CIS) as the image sensor. Some of the qualifying parameters for a scanner is the color depth which is measured in bits and resolution which is measured in pixels per inch.
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