ABSTRACT
The aim of this research work was to disassemble a computer system and assemble all the various components back into a computer system; with the objectives of this research work to identify all the various components of a computer system, to examine the importance of each components in the computer system, and to carryout the assembling and dissembling of a computer system. According to this research work assembling a computer system means connecting different components of a computer so that users can use the computer. Findings of the study show the processes of carrying out the disassembling of a computer system which include unplugging the AC power supply to the PC from the wall socket, disconnecting the CPU from the other devices including the monitor, removing the Cover or chassis or case of the CPU, unplugging bus cables and ATX power cables of the CPU, removing Adapter Cards if any, removing the processor and fan, removing the hard disk and CD/ DVD drives, removing the Memory Modules and the Power Supply (SMPS), and finally removing the Motherboard. Also findings shows the assembling processes of a computer system and this includes preparing the CPU case at first, installing the motherboard, processor, processor heat sink, RAM, SMPS, HDD, CD/DVD drive, connect expansion cards, SYS/Rear cooling fan, bus cable connection, power cable connection and the front panel connector connection. The study therefore concluded that assembling and disassembling a computer system is not a difficult task but requires keen observation and knowledge of the different components of the system, once there is a good knowledge to assemble and disassemble a computer system. It was then recommended that when choosing a system with a specific processor, a lower power consumption system is more appropriate; also, the operating system must be well considered by consulting an expert before deciding which one to go for.
TABLE OF CONTENT
Title Page i
Certification ii
Dedication iii
Acknowledgement iv
List of Figures v
Abstract vi
Table of Contents vii
CHAPTER ONE INTRODUCTION
1.1 Background of Project 1
1.2 Statement of Problem 3
1.3 Aim and Objectives 3
1.4 Significance of Project 3
1.5 Scope of Project 4
1.6 Limitations of Project 4
1.7 Definition of Terms 4
CHAPTER TWO LITERATURE REVIEW
2.1 Conceptual Background 6
CHAPTER THREE - DESIGN AND IMPLEMENTATION
3.1 Principle of Operation 30
3.2 Design /Model 33
3.3 Design/Model Specifications 33
CHAPTER FOUR - RESULTS, DISCUSSION & TESTING
4.1 Results and Discussion 42
4.2 Testing 46
CHAPTER FIVE - CONCLUSION AND RECOMMENDATION
5.1 Summary of Results 47
5.2 Conclusion 48
5.3 Recommendations 49
References 50
Appendix 53
Bill of Engineering Measurement and Evaluation (BEME) 53
LIST OF FIGURES
Figure 1: Computer System 18
Figure 2: Basic Computer Organization 19
Figure 3: Motherboard 21
Figure 4: Hard disk 24
Figure 5: Keyboard 25
Figure 6: Mouse 26
Figure 7: Monitor 28
Figure 8: HP Compaq 33
Figure 9: Bluegate 653 VA UPS 36
Figure 10: HP Compaq 38
CHAPTER ONE
INTRODUCTION
1.1 Background of Project
A computer can be said to be a machine that can be instructed to carry out sequences of arithmetic or logical operations automatically via computer programming. Computers have the ability to follow generalized sets of operations, called programs. These programs enable computers to perform an extremely wide range of tasks. Early computers were only considered as calculating devices. Since ancient times, simple manual devices like the abacus aided people in doing calculations (Wikipedia contributors, 2021).
According to the Oxford English Dictionary, the first known use of the word "computer" was in 1613 in a book called The Yong Mans Gleanings by English writer Richard Braithwait: "I haue [sic] read the truest computer of Times, and the best Arithmetician that euer [sic] breathed, and he reduceth thy dayes into a short number." This usage of the term referred to a human computer, a person who carried out calculations or computations. The word continued with the same meaning until the middle of the 20th century. During the latter part of this period women were often hired as computers because they could be paid less than their male counterparts (Evans, 2018). By 1943, most human computers were women (Smith, 2013). More sophisticated electrical machines did specialized analog calculations in the early 20th century where introduced. The first digital electronic calculating machines were developed during World War II. The first semiconductor transistors in the late 1940s were followed by the silicon-based MOSFET (MOS transistor) and monolithic integrated circuit (IC) chip technologies in the late 1950s, leading to the microprocessor and the microcomputer revolution in the 1970s. The speed, power and versatility of computers have been increasing dramatically ever since then, with transistor counts increasing at a rapid pace (as predicted by Moore's law), leading to the Digital Revolution during the late 20th to early 21st centuries (Wikipedia contributors, 2021).
Computer systems have become an essential part of life, having significant impact on modern society. A computer system consists of hardware components that have been carefully chosen so that they work well together and software components or programs that run on the computer (TechTarget, 2018). It is a set of integrated devices that are designed to receive, process, manage and present information in a meaningful format (PEDA, 2021). A computer may be analog, digital, or hybrid, although most today are digital. Digital computers express variables as numbers, usually in the binary system. They are used for general purposes, whereas analog computers are built for specific tasks, typically scientific or technical. The core of any computer is its central processing unit (CPU), commonly called a processor or a chip; it consists of an arithmetic-logic unit to carry out calculations, main memory to store data temporarily for processing, and a control unit to control the transfer between memory, input and output sources, and the arithmetic-logic unit (Encyclopedia of Business, 2021).
The distinction between a computer and a computer system is largely academic, since the terms are used interchangeably (Encyclopedia of Business, 2021). A complete computer including the hardware, the operating system (main software), and peripheral equipment required and used for full operation can be referred to as a computer system. This term may as well be used for a group of computers that are connected and work together, in particular a computer network or computer cluster.
1.2 Statement of Problem
Computer system is a basic, complete and functional hardware and software setup with everything needed to implement computing performance; although its assemblying and disassembling seems like a difficult job, once an individual get used to it, it will be realize that it is easier to be done. Assembling a computer system means connecting different components of a computer so that users can use the computer. Thus this research work will therefore focus on the assembling and disassembling of a computer system from the point of unplugging a computer to the point of rebuilding it effortlessly.
1.3 Aim and Objectives
The aim of this research work is to disassemble a computer system and assemble all the various components back into a computer system.
Other objective of the study is to:
• Identify all the various components of a computer system
• Examine the importance of each components in the computer system
• Carryout the assembling and dissembling of a computer system.
1.4 Significance of Project
The study will provide useful information for the review of related literature on the various components of a computer system and how they can be assembled to form a computer system. Findings of the study will enlighten upcoming computer scientist about the computer system.
1.5 Scope of Project
This study will only focus on the computer system and its hard ware components alone. The hardware components include the CPU, Monitor, Mouse, and Keyboard which will be use to computer if the system is proper assembled.
1.6 Limitations of Project
Some limitations that the researcher faced are: time limitation and cost. Another limitation is that the researcher is not well conversant with the steps in carrying out a research work. This being the researcher’s first attempt at a study of this nature.
1.7 Definition of Terms
Assembly: This is the action of fitting together the component parts of a machine or other object.
Disassembly: This means to take (something) to pieces.
Computer: This is an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
Computer system: This is a set of integrated devices that input, output, process, and store data and information.
Central Process Unit: CPU is the portion of a computer that retrieves and executes instructions; it is the unit which performs most of the processing inside a computer.
Computer Monitor: This is an output device that displays information in pictorial form.
Computer Mouse: This is a hand-held pointing device that detects two-dimensional motion relative to a surface.
Keyboard: This is one of the primary input devices used with a computer; it composed of buttons used to create letters, numbers, and symbols, and perform additional functions.
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