hard disk, magnetic storage medium for a computer. Hard disks are flat circular plates made of aluminum or glass and coated with a magnetic material. Hard disks for personal computers can store terabytes (trillions of bytes) of information. Data are stored on their surfaces in concentric tracks.
Monitors, also known as Visual Display Units (VDUs), are a computer’s primary output device. It creates images by arranging small dots, known as pixels, in a rectangular pattern. The amount of pixels determines the image’s sharpness. The two kinds of viewing screens used for monitors are described below. Flat-panel displays are currently used in calculators, video games, … Read more
The keyboard is the most frequent and widely used input device for entering data into a computer. Although there are some additional keys for performing other operations, the keyboard layout is similar to that of a typical typewriter.Generally, keyboards come in two sizes: 84 keys or 101/102 keys but currently keyboards with 104 keys or … Read more
An input/output device, often known as an IO device, is any hardware that allows a human operator or other systems to interface with a computer. Input/output devices, as the name implies, are capable of delivering data (output) to and receiving data from a computer (input). An input/output (I/O) device is a piece of hardware that … Read more
There are mainly two types of computer hardware: Internal and external hardware components. Internal Hardware Components Internal hardware components are devices built into the motherboard or added as an expansion card or device to the computer. The most important internal hardware components are RAM, Hard disk, SSD, Monitor, and CPU. The motherboard connects all the other components, … Read more
What is computer hardware? Computer hardware is a collective term used to describe any of the physical components of an analog or digital computer. The term hardware distinguishes the tangible aspects of a computing device from software, which consists of written, machine-readable instructions or programs that tell physical components what to do and when to execute the instructions. Hardware and software … Read more