02-01-2013, 04:53 PM
ASSEMBLY OF A COMPUTER SYSTEM CASE STUDY (FLOPPY DRIVE)
ASSEMBLY OF A COMPUTER.doc (Size: 86.5 KB / Downloads: 48)
ABSTRACT
This project work highlight on computer, its history and development, and also the distinct parts that make up the computer system. It went further to talk about my case study FLOPPY DRIVE and components its important in a computer system, stating the various types rolesit performs, and also it relevant to the P.C personal computer, the various capability and the installation process.
INTRODUCTION
BACKGROUND OF STUDY
Modern floppy drives and diskettes have evolved to a much smaller size with larger capacities as well. In 1980, the 3.5 inch floppy drive and diskette was introduced by Sony. During the early 1980s many competing formats were tried to compete with the 3.5 inch drives. From various companies there were 2.0, 2.5, 2.8, 3.0, 3.25, and 4.0 inch formats! Fortunately for us, over time the industry setteled on the 3.5 inch format which is now standardized and manufactured by many companies. Today’s standard 3.5 inch diskettes hold a formatted capacity of about 1.5 megabytes while still using the same basic technology of the second generation 8 inch drives.
Although technology has not changed substantially, floppy drives has certainly changed considerably in order to meet the very demanding needs of the marketplace. The primary factor which caused designers to reduce the size and cost of floppies was the introduction and evolution of the personal computer. It was in the personal computer marketthat the low cost, mass produced floppy drive found its first real home. Very quickly the floppy became the standard method of exchanging data between personal computers. It also became the popular method of storing moderate amount of information outside of the computer’s hard drive. Diskettes are small, inexpensive, readily available, easy to store, and have a good shelf life if stored properly.
This article is a discussion of common conventional floppy drives found in today personal computers.
OVER VIEW OF A FLOPPY DRIVE
It is important to note that since the early 1980s through the present, high capacity floppy drives have also been introduced to the marketplace. These have come in all three of the popular sizes previously mentioned. Some have achieved data storage capacities and even access timessimilar to that of small hard drives. Several of these products have come and gone as have some of the companies which produced them. A few designs continue to be popular to this day, especially for certain applications requiring removability but at the same time more storage capacity than the inexpensive common floppy drives can provide. Because of their inherent higher price, few of these high capacity drives have found their way into the mass produced personal computer. These drives are often sold as an add-on ( or add-in) accessory for those who need them.
AIMS OF STUDY
This is to know all about a company floppy drive how it do function, its form factors, its componenets, and it uses, and also some functional parts of the computer system and it’s assemble procedure. Finally is to make the knowledge of this research available for students, teachers, lecturers, technicians, Engineers and even empoyees to make exploit in their field of study.
SCOPE OF STUDY
This project is purely on floppy drive. It function, it form factors, types and capabilities. And also highlight on the assembling of a micro computersystem unit of brand “PENTIUM IV”, ATX mother board of processor speed 3.0gh, Ran 255mb, with HDD capacity of 80GB and DVD Rom of speed 56x and CPU data bus of 64 bit using a integrated circuit board and an ATX case. Also emphasis would be place on identifying the component functions, which are the various unit of the system.
LIMITATION OF STUDY
The problem faced during this study is subjected to the judgemental opinion of various authors whose ideals ad past information were used.
1. The material needed for the project were not readily availablethereby making the study more cumbersome to the researcher.
2. Time was a great one, as the period given for presentation was two concise for through research work to be carried out on study
3. Finance, a lots of money isbeen spent on the research work.
BRIEF HISTORY OF A FLOPPY DRIVE
Floppy disk drives were originally introduced commercially as a read-only devices to hold microcode and diagnostics for large IBM mainframe computer systems in the early 1970’s . By changing the diskette inside the floppy drive, service engineers could easily update the microcode to the latest revisions or load diagnostics in an easy and timely manner. Theses first commercial floppy drives were physically quite large and used 8 inch diskettes recorded on only one side. The storage capacity of these early ready-only drives was less than 100 kiloytes. In 1973 a new ugraded 8 inch drive with read/write capcability and a capacity of about 250 kilobytes began shipping which IBM used in data entry systems. This drive incorporated many technicalimprovements and became somewhat of a model for drives still in use today. As time went on, designers learned how to reliably record on both sides of the diskette as well as increase the density of the data recorded on the diskette.
SYSTEM ANALYSIS
INTERVIEW
This is the face to method of fact findings used question were answered by some computer engenders and also hardware lecturers within my reach and a useful information about the computer Pentium iv motherboard and motherboard in general were gathered correctly.
OBSERVATION
It give a clear knowledge of the activities within the computer system and it also help in the comprise of the actual operation with the gathered information
RESEARCH IN THE LIBERY
A proper research was carried out by looting into some reference books, past project warts carried out by past student at the library and correct information are gotten from there.
d. WWW (world wide web) visited
Lunching a various sitter that has to do with related information to my study
was been visited and reliable information is gotten from them.
SYSTEM ANALYSIS
THE STRUCTURE OF A FLOPPY DRIVE
This differs significantly from many hard drives employing servo systems, which constantly monitor exact head position over each track and make very small and almost instantaneous corrections automatically before performing a read or write operation. This feedback is generated by positioning signals pre-recorded on the hard disk surface since common floppy drives are designed without a positional feedback mechanism, they are referred to as “open-loop” whreas these hard drives are referred to as “closed-loop”.
FLOPPY DRIVE COMPONENTS
Conventional floppy drives contain the following basic components:
1). A spindle clamping mechanism to hold the diskette in place as it spins;
2). Either one or two magnetic read/write heads mounted on a mechanism that moves the heads radically across the diskette’s surface; and
3). A sensor that detects the rotational position of the diskette via an index hold (or magnetic sensor in3.5 inch drives) on floppy disks.
CONCLUSION
The assemble of a microcomputer system unit is a process of bringing together microcomputer components to obtain a functional computer system. The main objective of this project is to assemble a microcomputer system unit; this is basically a mater of installation of the system component both <hardware and software> to form a complete computer system. Therefore this project is a successful assembling of a Pentium IV with an ATX motherboard based on the configuration specification in the scope of study.