Computer hardware are physical components of a computer system and include display units, keyboards, mouse, printers and hard disk drive. In general simplistic terms computer hardware are the parts of the computer system that are tangible. Computer hardware is classified according to the purpose they are used for. Check out the list we’ve compiled for you below from Meritline.com.
1. Input devices.
These are devices that are used to input data into the computer so that the data can be manipulated using various software programs
The keyboard is the most common type of input device. It is rectangular in shape and contains keys used to input alphabets, numerals as well as other signs and punctuations. Most of the keyboards adhere to the qwerty standard and are referred to as the qwerty keyboard.
The mouse enables the user to point on a specific location on the screen. It enables one to choose a choice in a dialog box, drag objects and position the cursor. Most mouse types have two buttons, left and right and a scroll wheel that assists in scrolling down or up documents or web pages. Earlier mouse versions used a rolling trackball to assist in moving the cursor on the screen but with technological advancements most mouses today are optical. In addition, further advancements have led to the development of cordless mouse
A microphone is used to input sound. It accepts audio input
There are other types of input devices and their use depends on the purpose. For example joysticks are an example of an input device used by gamers. On the other hand scanners are used to generate digital images from hard copy documents whereas webcams are used for video input by people who are chatting or …continue reading Basics of Computer Hardware