Essay On My Personal Computer

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Mainframes vs. Personal Computers

...Main Frames vs. Personal Computers Joe Livingston POS/355 April 16 2010 Adam Manfred The essay will cover two main topics of main frames are. The second topic is personal computers or PC. The essay will define what a mainframe computer is and what the computers primary functions are. The paper will cover what a personal computer is and what PC are used for. Once both the mainframe computer and personal computer are defined, the paper will discuss the advantages and disadvantages of both systems. According to a mainframe is a computer that can process thousands of lines of code for a large scale environment like a bank. Mainframes were typically very large machines could span entire rooms. Mainframes can be accessed also through local area networks (LAN) or wide area networks (WAN) and have multiple users. According to mainframe uses a central processing unit that performs calculates and issues instructions to other components. Personal computers or PC also do most of the tasks mainframe computers do in different and smaller scales. The personal computer or PC has many uses for individual users. According to a personal computer or digital computer is designed for the use of one person at a time. Personal computers use most of the same comp nets as a mainframe computer like a central processing unit CPU, random access memory RAM, Hard drive. The personal computer has input and output devices like keyboard,......

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Merging Personal Computers

...Merging personal computers with consumer electronics Edmund Wilson III Colorado Technical University Online ENG202 12/10/2010 Merging Consumer Electronics with Personal Computers The invention of the computer had two primary goals: convenience and flexibility. Its convenience provides ways for people to effectively complete a task. The flexibility further allows the user to perform a multiplicity of functions simultaneously. For example, an English inventor and Mathematician named Charles Babbage built an adding machine that would mechanically perform computations of arithmetic. (Berkshire 2004) Conveniently, this early computerized device removed the potential for human error and made it possible to compute information in a smaller amount of time and with less mental effort or energy. Today, the flexibility of computers has grown from simple Mathematical computations to multi-faceted functions and applications. Advancements in technology have opened personal computers to new supportive uses. Their functions have shifted from storing data and word processing to creating, playing, and sharing multimedia files and networks. The personal computer can be networked (connected) with home electronics to create the ultimate technological experience. These mergers can include gaming systems, DVD players, cameras, home theater or sound systems, high-end televisions, home security systems, and more. Converging most or all of these devices with your personal computer can expand......

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Personal Computers

...reserved; no part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of the Publishers. Published by Pearson Education Limited in association with Penguin Books Ltd, both companies being subsidiaries of Pearson Plc For a complete list of titles available in the Penguin Readers series please write to your local Pearson Education office or contact: Penguin Readers Marketing Department, Pearson Education, Edinburgh Gate, Harlow, Essex, CM20 2JE. Contents page iv Wedding on Long Island The Greatest Racehorse in the World Virgil Sollozzo Sicilian Message Seeds of Revenge Nothing Personal Apollonia A Bridge Too Far A Good American Wife 1 6 9 15 20 25 31 34 36 37 39 40 43 44 48 55 Introduction Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 No Revenge Chapter 11 Ghost from the Past Chapter 12 Many Changes Chapter 13 Traitor Chapter 14 Michael Rizzi, Go in Peace Chapter 15 Family Business Activities Introduction 'My father made him an offer he couldn't refuse. Luca held a gun to his head and my father told him that if he didn't agree to let Johnny go, Luca would blow his brains out.' So Michael, youngest son of Don Vito Corleone, introduces his girlfriend Kay to his father's business practice. His father is a gangster, a very important gangster. He is......

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Personal Computer

... Personal computer Name Institution's name Introduction A computer can be defined as an electronic device with the capability of accepting raw data, process it and give out feedback, that is, it gives out information which is more useful. In the 19th century, Charles Babbage invented the first computers. They were very big and they occupied a big space. The computers were not that efficient but technological advancement led to more and more researches be conducted in order to increase the efficiency and reliability of these computers. The evolution of the personal computers took place in three major stages where each stage is said to have had a positive improvement in terms of the performance and physical size of the computers. The stages were; First stage (1937-1946) - Clifford berry and John Atanasoff were the pioneers of first electronic digital computers. The computers had no any operating system and they used vacuum tubes for processing. They were so heavy and are believed to have produced a lot of heat. They almost weighed 30 tons and consumed a lot of power. Second stage (1947-1962) – at this stage, everything was perfectly improved. Vacuum tubes were replaced with transistors and this made the computers more reliable. Programming languages were also invented in this stage as well as memory storage media. The computers were used commercially. Third stage (1963- present) – it’s at this stage that the integrated circuits were invented which brought much impact on......

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Impact of Personal Computer

...The impact of the Personal Computer A computer is a device that receives processes and presents information. A personal computer is a computer that is created for private use by an individual. “Computers small and inexpensive enough to be purchased by individuals first became feasible in the 1970’s when large scale integration made it possible to construct a processor on a single semiconductor”. Since then the PC industry has exploded and truly revolutionized how we live, work and communicate in almost every single way. The PC industry has had a number of big impacts in society and we will discuss some of them below. The PC industry has truly revolutionized how people communicate as the development of email and social networking has transformed the mass communications industry. Services like the post office have seen a significant decline in the demand for their services and now people can reach each other instantly, through email and social webpages. I think in the next 20 years, except for the occasional parcel or package that cannot be sent electronically, the post office and other similar service will continue to be sidelined in favor of electronic means. The old fashioned industry will be decimated but not entirely. The PC industry has also dramatically changed the entertainment industry. In years past, people had to go to theatres, and cinemas and video library stores to get VHS and watch movies. They even had to make a trip to the music store to buy a record. The PC...

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Best Personal Computer

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Personal Computer

...Personal computers are now a very common item in many houses yet in 1955, there were only 250 computers in use throughout the world. In 1980, more than one million personal computers had been sold and by the mid-1980’s, this figure had risen to 30 million. How did this come about? A computer in 1955 was very large and could not have fitted into a normal room in a normal sized house. They frequently burned out and had a tendency to attract moths into the system which short-circuited them. (Getting a computer ‘bug’ now refers back to the time when moths were a problem to the early computers). In the late 1950’s, computers got smaller because one of its main components - the valve - was replaced by the much smaller transistor. These made computers far more reliable and therefore businesses took a much greater interest in them. Firms such as IBM could sell a mainframe computer for just under £½ million pounds in today’s money. By the mid-1960’s, the microchip was replacing the transistor. A microchip could have several transistors on it. But being smaller, it lead again to a decrease in the size of computers. By 1965, there were 20,000 computers in the world. The most famous was the IBM System/360. The microchip also leads to computers being made that were small enough to get into the average sized room in a house. By 1970, one microchip could contain 1000 transistors on it. In 1970, a home personal computer would have cost nearly £70,000 in today’s money. In 1971, the......

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Personal Computers

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Benefits of a Personal Computer

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Personal Computers and the Internet

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Mainframe vs Personal Computer

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Personal Computers

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Hewlett-Packard and the Personal Computer Industry

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A desktop computer is a personal computer designed for regular use at a single location on or near a desk or table due to its size and power requirements. The most common configuration has a case that houses the power supply, motherboard (a printed circuit board with a microprocessor as the central processing unit (CPU), memory, bus, and other electronic components), disk storage (usually one or more hard disk drives, optical disc drives, and in early models a floppy disk drive); a keyboard and mouse for input; and a computer monitor, speakers, and, often, a printer for output. The case may be oriented horizontally or vertically and placed either underneath, beside, or on top of a desk.



Prior to the widespread use of microprocessors, a computer that could fit on a desk was considered remarkably small; the type of computers most commonly used were minicomputers, which were themselves desk-sized. Early computers took up the space of a whole room. Minicomputers generally fit into one or a few refrigerator-sized racks.

The very first "programmable calculator/computer" was marketed in the second half of the 1960s, starting with the Italian machinery OlivettiProgramma 101 (1965) computer at typewriter size.[1] More desktop models were introduced in 1971, leading to a model programmable in BASIC in 1972, from Olivetti itself, followed by Hewlett-Packard.[2] This kind of computers used a smaller version of a minicomputer design based on read-only memory (ROM) and had small one-line LED alphanumeric displays. They could draw computer graphics with a plotter.

Growth and development[edit]

Apple II, TRS-80 and Commodore PET were first generation personal home computers launched in 1977, which were aimed at a consumer market – rather than businessmen or computer hobbyists. Byte magazine referred to these three as the "1977 Trinity" of personal computing.[3] Throughout the 1980s and 1990s, desktop computers became the predominant type, the most popular being the IBM PC and its clones, followed by the Apple Macintosh,[4] with the third-placed CommodoreAmiga having some success in the mid-1980s but declining by the early 1990s.

Early personal computers, like the original IBM Personal Computer, were enclosed in a "desktop case", horizontally oriented to have the display screen placed on top, thus saving space on the user's actual desk, although these cases had to be sturdy enough to support the weight of CRT displays that were widespread at the time. Over the course of the 1990s, desktop cases gradually became less common than the more-accessible tower cases (Tower was a trademark of NCR created by ad agency Reiser Williams deYong[citation needed]) that may be located on the floor under or beside a desk rather than on a desk. Not only do these tower cases have more room for expansion, they have also freed up desk space for monitors which were becoming larger every year. Desktop cases, particularly the compact form factors, remain popular for corporate computing environments and kiosks. Some computer cases can be interchangeably positioned either horizontally (desktop) or upright (mini-tower).

Influential games such as Doom and Quake during the 1990s had pushed gamers and enthusiasts to frequently upgrade to the latest CPUs and graphics cards (3dfx, ATI, and Nvidia) for their desktops (usually a tower case) in order to run these applications, though this has slowed since the late 2000s as the growing popularity of Intel integrated graphics forced game developers to scale back. Creative Technology's Sound Blaster series were a de facto standard for sound cards in desktop PCs during the 1990s until the early 2000s, when they were reduced to a niche product, as OEM desktop PCs came with sound boards integrated directly onto the motherboard.


While desktops have long been the most common configuration for PCs,[5][5] by the mid-2000s the growth shifted from desktops to laptops.[6] Notably, while desktops were mainly produced in the United States, laptops had long been produced by contract manufacturers based in Asia, such as Foxconn. This shift led to the closure of the many desktop assembly plants in the United States by 2010. Another trend around this time was the increasing proportion of inexpensive base-configuration desktops being sold, hurting PC manufacturers such as Dell whose build-to-order customization of desktops relied on upselling added features to buyers.[7]

Battery-powered portable computers had just 2% worldwide market share in 1986.[8] However, laptops have become increasingly popular, both for business and personal use.[9] Around 109 million notebook PCs shipped worldwide in 2007, a growth of 33% compared to 2006.[10] In 2008, it was estimated that 145.9 million notebooks were sold, and that the number would grow in 2009 to 177.7 million.[11] The third quarter of 2008 was the first time when worldwide notebook PC shipments exceeded desktops, with 38.6 million units versus 38.5 million units.[9][12][13][14]

The sales breakdown of the Apple Macintosh have seen sales of desktop Macs staying mostly constant while being surpassed by that of Mac notebooks whose sales rate has grown considerably; seven out of ten Macs sold were laptops in 2009, a ratio projected to rise to three out of four by 2010. The change in sales of form factors is due to the desktop iMac moving from affordable (iMac G3) to upscale (iMac G4) and subsequent releases are considered premium all-in-ones. By contrast, the MSRP of the MacBook laptop lines have dropped through successive generations such that the MacBook Air and MacBook Pro constitute the lowest price of entry to a Mac, with the exception of the even more inexpensive Mac Mini (albeit without a monitor and keyboard), not surprisingly the MacBooks are the top-selling form factors of the Macintosh platform today.[15]

The decades of development means that most people already own desktop computers that meet their needs and have no need of buying a new one merely to keep pace with advancing technology. Notably the successive release of new versions of Windows (Windows 95, 98, XP, Vista, 7, 8, 10 and so on) had been drivers for the replacement of PCs in the 1990s, but this slowed down in the 2000s due to the poor reception of Windows Vista over Windows XP. Recently, some analysts have suggested that Windows 8 has actually hurt sales of PCs in 2012, as businesses have decided to stick with Windows 7 rather than upgrade.[16] Some suggested that Microsoft has acknowledged "implicitly ringing the desktop PC death knell" as Windows 8 offers little upgrade in desktop PC functionality over Windows 7; instead, Windows 8's innovations are mostly on the mobile side.[17]

The post-PC trend has seen a decline in the sales of desktop and laptop PCs.[16][18] The decline has been attributed to increased power and applications of alternative computing devices, namely smartphones and tablet computers.[19] Although most people exclusively use their smartphones and tablets for more basic tasks such as social media and casual gaming, these devices have in many instances replaced a second or third PC in the household that would have performed these tasks, though most families still retain a powerful PC for serious work.[20]

Among PC form factors, desktops remain a staple in the enterprise market but have lost popularity among home buyers. PC makers and electronics retailers have responded by investing their engineering and marketing resources towards laptops (initially netbooks in the late 2000s, and then the higher-performance Ultrabooks from 2011 onwards), which manufacturers believe have more potential to revive the PC market[5] than desktops.

In April 2017, StatCounter declared a "Milestone in technology history and end of an era" with Android operating system more popular than Windows (the operating system that made desktops dominant over mainframe computers).[21] Windows is still most popular on desktops (and laptops), while smartphones (and tablets) use Android, iOS (Apple products) or Windows 10 Mobile.



An all-in-one desktop computer integrates the system's internal components into the same case as the display, thus occupying a smaller footprint (with fewer cables) than desktops that incorporate a tower.[22]

The all-in-one form factor was popular during the early 1980s for personal computers intended for professional use such as the Kaypro II, Osborne 1, TRS-80 Model II and Compaq Portable. Many manufacturers of home computers like Commodore and Atari included the computer's motherboard into the same enclosure as the keyboard; these systems were most often connected to a television set for display. Apple has manufactured several popular examples of all-in-one computers, such as the original Macintosh of the mid-1980s and the iMac of the late 1990s and 2000s. Some all-in-one desktops, such as the iMac G4, have used laptop components in order to reduce the size of the system case.[23] By the mid 2000s, many all-in-one designs have used flat panel displays, and later models have incorporated touchscreen displays, allowing them to be used similarly to a mobile tablet.[22]

Like most laptops, some all-in-one desktop computers are characterized by an inability to customize or upgrade internal components, as the systems' cases do not provide convenient access to upgradable components, and faults in certain aspects of the hardware may require the entire computer to be replaced, regardless of the health of its remaining components.[24] There have been exceptions to this; the monitor portion of HP's Z1 workstation can be angled flat, and opened like a vehicle hood for access to internal hardware.[25]


These desktops are used as home PCs but have a heavy price tag. They are equipped with powerful processors, graphic cards and huge RAM capacity over and above having many complex factors. It is very common for them to have multiple hard drives as they are mostly used for gaming.[26]


These desktops are very common and quite budget friendly compared to others in the market. It comes with separate display component and processing component. The components are connected by cables or wireless connection to execute command from each other. These computers are easy to customize and upgrade as per our requirement. [26]

Home Theater[edit]

These desktops are connected to home entertainment systems and typically used for amusement purpose. They come with high definition display, video graphics, surround sound and TV tuner systems to compliment typical PC features. [26]


These desktops are same as Full-Sized desktops but the only different is its size. These are almost half of them and cost, performance same as Full-Sized desktops. Compact desktops are very difficult to customize and upgrade. [26]

Comparison with laptops[edit]

Main article: Laptop § Disadvantages

Desktops have an advantage over laptops in that the spare parts and extensions tend to be standardized, resulting in lower prices and greater availability. For example, the size and mounting of the motherboard is standardized into ATX, microATX, BTX or other form factors. Desktops have several standardized expansion slots, like conventional PCI or PCI express, while laptops only tend to have one mini-PCI slot and one PC Card slot (or ExpressCard slot). Procedures for assembly and disassembly of desktops tend to be simple and standardized as well. This tends not to be the case for laptops, though adding or replacing some parts, like the optical drive, hard disk, or adding an extra memory module is often quite simple. This means that a desktop computer configuration, usually a tower case, can be customized and upgraded to a greater extent than laptops. This customization has kept tower cases popular among gamers and enthusiasts.

Another advantage of the desktop is that (apart from environmental concerns) power consumption is not as critical as in laptop computers because the desktop is exclusively powered from the wall socket. Desktop computers also provide more space for cooling fans and vents to dissipate heat, allowing enthusiasts to overclock with less risk. The two large microprocessor manufacturers, Intel and AMD, have developed special CPUs for mobile computers (i.e. laptops) that consume less power and lower heat, but with lower performance levels.

Laptop computers, conversely, offer portability that desktop systems (including small form factor and all-in-one desktops) can not due to their compact size and clamshell design. The laptop's all-in-one design provides a built-in keyboard and a pointing device (such as a trackpad) for its user, and can draw on power supplied by a rechargeable battery. Laptops also commonly integrate wireless technologies like WiFi, Bluetooth and 3G, giving them a broader range of options for connecting to the internet, though this trend is changing as newer desktop computers come integrated with one or more of these technologies.

A desktop computer needs a UPS to handle electrical disturbances like short interruptions, blackouts and spikes; achieving an on-battery time of more than 20–30 minutes for a desktop PC requires a large and expensive UPS.[27][28] A laptop with sufficiently charged battery can continue to be used for hours in case of a power outage and is not affected by short power interruptions and blackouts.

A desktop computer has an advantage over a laptop when you need to minimize power consumption and heat output. This means that you will never be able to overclock it to the sort of performance levels achieved by Cyberpower's Gamer Infinity PC[citation needed], nor will you be able to fit a laptop with the kind of graphic cards found in most of these desktop systems. You may find a laptop with high-definition Blu-ray drives, but you may not get much benefit if you're watching a Blu-ray film on a screen that's 17in or smaller. In contrast, the smallest monitor supplied with these £1,299 PCs was 19in, with more than one 24in monitor included as well. These monitors are great for watching films, as well as for performing tasks such as video editing or multi-track music recording.If you are looking for a really powerful PC, then these desktop computer still hold an edge over the modern laptops.[29]

See also[edit]


  1. ^"The incredible story of the first PC, from 1965". Pingdom. Retrieved August 28, 2012. 
  2. ^"Timeline of Computer History". Computer History Museum. Retrieved May 7, 2014. 
  3. ^"Most Important Companies". Byte. September 1995. Archived from the original on 2008-06-18. Retrieved 2008-06-10. 
  4. ^"Thirty years of Mac: 1984 - The Macintosh". Apple. Retrieved 8 May 2014. 
  5. ^ abc"PC sales are in decline, and in an alarming way for the first time". ExtremeTech. 
  6. ^Darlin, Damon (2006-06-15). "Falling Short of A+ - New York Times". The New York Times. Retrieved 2012-10-30. 
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External links[edit]

  • Computer Tour – of major components of a desktop computers at HowStuffWorks

A stylized illustration of a desktop personal computer, consisting of a case (containing the motherboard and processor), a monitor, a keyboard and a mouse

IBM 5150 Personal Computer

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