1. Introduction of Computer Parts
SYSTEM UNIT
• Central Processing Unit (CPU): The Central Processing Unit (CPU) is the primary component of a computer that serves as its "control center". The CPU, also known as the "central" or "main" processor, is a complex set of electronic circuitry that runs the machine's operating system and apps.
The central processing unit (CPU) is a small chip that connects to the motherboard. This is the main electronic circuitry that processes instructions to carry out the programs. Think of the CPU as the central hub of your computer; Go back to all the functions and different pieces of hardware for your computer path through the CPU.
• Random-Access Memory (RAM): This is second only to the CPU in keeping your computer performance. The bigger the RAM, the faster the response, the better the performance.
As we mentioned above, random access memory ("memory" or "RAM" for short) is where the computer temporarily stores any data obtained. Typically, any data stored in RAM is permanently transferred to the hard disk after the computer is restarted or shut down.
Nowadays, 2GB to 4GB is the standard. 2 GB is even considered quite low. Most computers with more than 4GB of RAM are quite fast and therefore, are marketed as ideal options for heavy workloads.
• Hard Disk Drive (HDD): Hard disk drives are commonly referred to as "hard drives" or "hard disks". This is where data from RAM is stored permanently. After the computer is turned off, any data not written to the hard disk drive will be lost. The only way to get rid of data written to the hard drive is to manually delete it.
The capacity of the hard disk drive will determine how much digital content (i.e. media, programs, documents, etc.) the computer can hold.
The numbers range from 100GB (quite small) to 1TB. Computer users who need to store a lot of files should not consider anything less than 250 GB. Of course, an average high-quality DVD movie can take up more than 4GB of hard disk drive space!
• Motherboard: The motherboard is the central communication backbone connection point of a computer, through which all components and external peripherals connect. Motherboards are found in almost all computers, especially desktops and laptops. Components that connect across them include the chipset, central processing unit (CPU) and memory. The external peripherals include the graphics processing unit, or GPU with Wi-Fi, Ethernet and graphics card
Motherboard manufacturers include Acer , ASRock , Asus , Gigabyte Technology , Intel and Microstar International .
MONITOR
The screen on a computer is called a "monitor." You’re reading one at the moment! Like televisions, computer monitors display text, images, and video for users to use visually.
PRIMARY INPUT DEVICES: KEYBOARD & MOUSE
Input devices are defined as external hardware devices that allow the user to control and interact with the computer by sending data. A computer has two primary input devices that it cannot go without: the keyboard and the mouse.
KEYBOARD:
The mouse is the second primary input device. It is described as a pointing and selecting device that people use to control the on-screen cursor. The mouse allows them to select any element displayed on the computer screen by simply dragging the cursor to rotate over it and clicking the item using one of the mousebuttons.
These days a standard computer mouse has at least three buttons: the left, right, and center buttons, as well as the scroll wheel.
Each button will provide different results depending on the software. For example, left-clicking on a file selects it. Left-click a file twice to open it. Left-clicking on a file and holding down the left button will cause you to drag the file around. Right-clicking on a file will open a menu of options related to the file.
Is it possible to use a computer without a mouse? No.
Yes, there are things called keyboard shortcuts that make it easier to navigate a computer. Of course, the graphical nature
