COMPUTER PART=4

A computer speaker is an output hardware device that connects to a computer to generate sound. The signal used to produce the sound that comes from a computer speaker is created by the computer's sound card.

A joystick is an input device that can control the movement of the cursor or a pointer in a computer device. The pointer/cursor movement is controlled by manoeuvring a lever on the joystick. The input device is mostly used for gaming applications and, sometimes, in graphics applications. A joystick also can be helpful as an input device for people with movement disabilities.

MICR is short for Magnetic Ink Character Recognition It is a technology mainly used in the banking industry to verify the legitimacy of documents. It helps streamline the processing and clearance of various banking documents, such as cheques. MICR on cheques can be found at the button left in the form of a string of characters and unlike barcodes, MICK can be read by humans without the need for any special equipment.

Plotter is an output device in computer. A plotter is a computer hardware device, much like a printer is used to print vector graphics. Instead of toner, plotters use a pen, pencil, marker, or another writing tool to draw multiple, continuous lines on paper rather than multiple dots, like a traditional printer. Plotters produce a hard copy of schematics and other similar applications. Though once widely used for computer aided design, these devices were more or less phased out by wide-format printers.

Printer is an output device. It can accept computer generated results in a machine-readable form and display them on physical forms such as paper or transparent films.

Monitor is an output device, whereas keyboard and mouse are the main input devices. Input devices are used to specify data in the computer, whereas output devices output the specified data after execution by the computer.

In computing, an input device is a piece of equipment used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.

Joysticks are used to control and control computer games and assistive technology in computers. A joystick is an input device that acts like a trackball.

Input devices are used to enter data and instructions into the computer. An output device is a component of hardware or a physical part of a computer that can be touched. The data processed by this is released in the form of picture and sound.

A modifier key is a key on a computer's keyboard that's only used in conjunction with another kay Modifier keys are often used with other keys to perform computer keyboard shortcuts and other commands. Modifier keys include Alt, Ctrl, shift and the Windows key.