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Computer Engineering can be defined as a branch of engineering that combines computer science and electronic engineering for the development and maintenance of computer hardware and software.
Three Hundred years back in history, great philosophers and mathematicians like Leibnitz, Pascal, Boole and Babbage started the foundation of computing with their discoveries. A notable scientist with the name John Von Neuman describe computer hardware in five parts: The Central Processing Unit (CPU), Input Unit, Output Unit, Working Memory and Permanent Memory.
There are many types of Computers under these major categories namely; Personal Computers, Server Computers, Mainframe Computers. Here we will dive into Personal Computer - the most popular and commonly used which is also known as PC.
In 1981 PC - Personal Computer was established by IBM and it has had effect on communication. IBM built the PC with an Intel processor and also on Microsoft Simple Disk Operating System (MS DOS). Later on other companies like Compaq, AST etc also came into the scene and went on to develop their own hardware components. A typical PC consist of a Monitor, System Unit, Keyboard, Mouse and sometimes other peripherals like Scanners, Printers, Speakers etc.
The System Unit consist of CD-ROM drive bay, Diskette drive bay, Power and reset button. Inside the system unit has the motherboard which comprises the CPU, Random Acess Memory (RAM), Cache, Read Only Memory (ROM) chips which contain BIOS and start-up programs. It also has ports (PS 2 USB etc) busses and expansion slots which are for expansion cards (graphics cards, network controllers, sound and video cards, TV cards ISDN cards etc).
The Start-up and Booting processes happens when you turn the power on, you will hear the fan motor first and then the texts starts scrolling on the screen, then the RAM test, you then receive command from ROM which will give you the POST and Basic Input Output System (BIOS) instructions. The operating system is read next from the hard drive.
Personal Computers - PC's run on system software which is also known as the operating system, there are various of them in the market. The operating system works hand in hand with the BIOS which is found in the ROM chip to help communicate with the hardware with the help of device drivers.
Device drivers are group of files or program that operates or controls each device attached to the computer. Every device has its own driver that helps it function with the operating system. In order words, drivers enables hardware devices to communicate smoothly with computers operating system.
In this course you will learn everything you need to know about Computer Engineering from the fundamentals of Building a PC, to Repairs and Maintenance. You will fully understand the Computer Structure and Architecture. You will be a Competent Computer Engineer with a Diploma Certificate to document and showcase your knowledge.
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