The Basics


Computer hardware are physical parts of a computer system. This includes as follows;  computer case, monitor, keyboard, and mouse. It also will also include all the parts inside the computer case, such as the hard disk drive, motherboard, video card, and many others. Computer hardware is what you can actually touch.

Let’s start off with the computer case. This is the metal enclosure that contains many of the other hardware components. It actually comes in various shapes and sizes, but a typical tower model is between 14-24 inches high. Would you like to know what’s inside? Okay, grab a screwdriver and let’s prop it open. We’re serious, if you are really into computers, the best way to learn is to actually get hands-on. To understand what we’re talking about you need to know how to find the perfect computer hardware



The various components of a computer case
computer tower schematic
The computer case includes the power supply unit to convert electricity into  (DC) for the other components. The MOST IMPORTANT component is the motherboard, a plastic board on which several vital components are mounted. This involves the central processing unit, also referred to as the CPU, the main memory, and expansion slots  for other hardware parts and gizmos. The internal hard disk drive serves as the mass storage device for data files and software applications. And the optical disk drive makes it possible to read from and write CDs and DVDs. Other hardware components typically found inside the computer case (but not shown in the figure) are a sound card, a video card, and a cooling mechanism, such as a fan.

A computer system also needs input devices, such as a keyboard and a mouse. To interact with a user, a computer system also needs a display device, such as a monitor.


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