While computers have been around for decades their components inside keep evolving. In order to keep up with this evolving technology a Network Administrator will need to receive the proper certifications and training.
This topic is important to me because I feel that people do not know any of the history of how the computer was invented, what all of the components inside a computer do, and how much work goes into building and designing a new computer
http://www.dictionary.com A computer is just a device that you give it a set of instructions and it will perform the desired tasks that you told it to do. ALso, computers are also in everything that we have today in this day in age. Computers are in our watches, car, cell phones, etc.
In this section of the powerpoint I will be telling you the history of computers, and the people that invented them. http://laptops.webhostingoverview.com/wp-content/uploads/2007/06/176.jpg http://images.apple.com/macbookpro/images/design-hero20090915.jpg
William Schockard was born in 1592 in Germany he was a universal scientist, and a professor in astronomy. While he was in college he mainly researched mathematics, and astronomy. Schockard was also one of the first people to build a working calculating machine back in 1623. The calculating machine that he invented and built was designed to calculate astronomical tables. The machine that he built could only perform simple tasks such as add and subtract six digit numbers.
Konrad Zuse was not the inventor of the first computer, but he invented the first computer that was fully functional and programmable. Replicas only exist because Zuse’s original computer was destroyed when the allies bombed Berlin in 1943. All photos, and original documents of the machine were also destroyed. Some facts about his computer are that the original one consumed over 4000 watts of electricity, it took .8 seconds to add & 3 seconds to multiply, and it weighed over 2,200 pounds.
The picture to the left is a picture of Konrad Zuse, and the picture to the right is a replica of the Z3, Konrad Zuse’s invented. http://upload.wikimedia.org/wikipedia/commons/4/4c/Z3_Deutsches_Museum.JPG
Early computers were all hand built because there was not enough demand for them. The demand for the computer was not great because they were very expensive. It cost $666.66 ($2,500 adjusted for inflation 2009) for the Apple I that was introduced to the public in 1976. Also, the early computer could only perform simple tasks such as running a spreadsheet program. http://upload.wikimedia.org/wikipedia/commons/2/27/Apple_I.jpg
Many of the modern computers that are made today are designed to be lightweight, and be very cheap. Besides the advantages of having a small computer with the low cost and portability, there are many disadvantages when it comes to a small and cheap computer. Firstly with a small computer, since there is less space inside the computer the components become smaller and the electronics tend to become very hot and overheat fast. Also, when computers are becoming cheaper then the parts become more mass produced and then today’s computers are not are durable as they were 5 years ago. As technology evolves, then the computers that are made today are hundreds of times more powerful regarding processor speed. Also when computers were first available they consumed about 20,000 watts of electricity, and today computers can use as little as 30 watts of power http://i.dell.com/resize.aspx/inspiron-1012-right-black-standard-500/149 http://media.laptoplogic.com/data/news/images/2615/dell-new-inspirons.jp g
On April 4, 1975 Bill Gates founded the company Microsoft On April 1, 1975 Steve Jobs and Steve Wozniak founded the Apple Computer computer
Keeping a work environment clean is important because of many reasons. -when dusk gets between metal contacts, it could cause a device to not work properly -always use a antistatic mat and antistatic wrist strap because static electricity can short out electrical components causing them not to work.
Always unplug before servicing anything, because if you don’t, you could receive a potentially deadly shock. Also, some of the electronics that make up a computer retain energy when you unplug a computer, so first unplug the device, and wait a couple minutes. Unplugging a computer could also reduce energy costs, come of the components in a computer can still consume energy even when the computer is off.
It is always important to remove anything that is conductive from your hands and wrists because if you don’t you can get a electrical shock and you can short out electrical components.
Capacitors look like small batteries and they are deceiving because you cannot visibly tell if they are currently storing electricity. Some capacitors can store electricity for a period of time even when they are disconnected from a power source. To discharge a capacitor you should get a screw driver and touch the two leads, and then the capacitor is safe to touch or handle. http://rsk.imageg.net/graphics/product_images/pRS1C-2264681t98.jpg http://rsk.imageg.net/graphics/product_images/pRS1C-2266188t98.jpg http://rsk.imageg.net/graphics/product_images/pRS1C-2264549t98.jpg
Never service parts that are not designed to be serviced because they contain sensitive parts that are not made to be touched. Some parts are not designed to be serviceable because parts are not available for the product, and some items can be serviced, but by only a qualified professional.
The CPU is commonly referred to as the brain of the computer because it is the place were most calculations of the computer take place. Also, the CPU is the most important element of a computer heattsink http://www.product-reviews.net/wp-content/userimages/2008/05/budget-45nm-penryn-cpu.jpg http://www.digitalworldtokyo.com/entryimages/2008/01/080130_CPU.jpg
Heat-sinks are very important because heat is one of electronics worst enemy. Because if a device overheats you could potentially destroy the computer. Heat-sinks operate off of the principle that it attaches to a device that is hot and it absorbs and dissipates the heat because it is cooler. The heat-sink then transfers the heat from the fins of the heat-sink to the air through a fan. http://www.dictionary.com http://www.build-your-own -computer.net/image-files/cpu-heatsink-basic.jpg http://www.electropages. com/articleImages/large/14307.jpg http://www.simplyheatsinks.com/simheat/B asics/Principle.aspx
RAM is a volatile type memory which means that it will lose all of its contents once power is lost to the chip, compared to a hard drive which keeps its contents stored even when the power is lost. RAM is a type of computer memory that stores all of your applications and files that are open on the computer. How RAM works is that when you open a application the computer loads the application from the hard drive to the RAM in which it runs from until you close the application. Why is having enough RAM important? RAM is important because the lack of RAM is usually the main bottle neck in computer performance Also, adding RAM to your computer can also be one of the “Cheapest” ways to speed up your computer.
A hard drive is a non-volatile type of storage that magnetically stores data on a platter or disk. The hard drive is also a important part to a computer because it stores all of the user date and information required to run a computer. Hard drives are very fragile because it has a precisely balanced disk and even the slightest bump can knock off its alignment. If the hard drive is damaged in any way you can permanently lose everything on the disk forever. Non-volatile memory is a type of memory that can store information even when it is powered off. http://globaltech-ow.com/Products/Storage%20devices/images/TTB.jpg http://img16.imageshack.us/i/1020064.jpg/
There are many advantages of having a solid state drive than a Hard drive. Solid state drives are 3-5 times faster than a hard drive, They are completely silent, they have a very high reliability because of the lack of moving parts, they use less power (this is key for laptops), and in a SSD there is twice the data density than a hard drive. SOme disadvantages of SSD’s are more expensive than a hard drive (.10 per gigabyte for a hard drive and 2.00 per gigabyte for a SSD), and they will wear out after about 2,000,000 write cycles. http://compreviews.about.com/od/storage/a/SSD.htm http://tathya.net/wp-content/uploads/2010/03/Soli dStateHardDrive.jpg http://laptoping.com/wp-content/transcend_SSD_32 GB.jpg
The motherboard is a computers primary circuit board that holds all of the computer chips and links them together. http://www.newegg.com/Product/ImageGallery.aspx?CurImage=13-130-234-TS&SpinSet=13-130-234-SS&ISList=13-130-234-234&Depa=0&WaterMark=1&Description=MSI%20G31TM-P21%20LGA%20775%20Intel%20G31%20Micro%20ATX%20Intel%20Motherboard
A video is important to a computer because without one you would not be able to display any graphics that the computer is trying to display. Also, video cards come in two different types: separate expansion cards, and video cards that are imbedded into the motherboard. The main difference between the two types of video cards is that the separate cards are better because they are faster than the ones that come with the motherboard. http://students.apsweb.org/~amunguia/hardware/video%20card.jpg http://upload.wikimedia.org/wikipedia/commons/c/c5/Gpu-connect ions.png
http://www.cybercafelatino.com/wp-content/uploads/2010/02/Sound-Card.jpg http://www.wisegeek.com/what-is-a-sound-card.htm http://18.104.22.168/kn owledgeroot/uploads/image/sound_card.jpg Sound c ards can be built into the motherboard, but usual ly they are disabled for a better quality add-on sound card. T he sound cards that are built into the motherboard are for people who are the “average” user, but the add-on card is more for professional sound editing or people that want surpurb sound quality. Sound cards can range in price from $15-$400.
http://en.wikipedia.org/wiki/File:Asus_CD-ROM_drive.jpg http://www.hardwarezone.com/img/data/articles/2005/1558 /optical_Drive.jpg Optical disk drives are important because they are the primarily media to install new programs or files to your computer.
A computer monitor is also the part of the computer that displays the graphics that are produced from a computer. There are two types of monitors that are widely used today. The two major types of monitors are the CRT monitor, & LCD monitor display monitor. All of these two monitors do the same thing, but in a different way. There are two other types of monitor but they are not widely used today. The first type is a Plasma monitor, and a Projection type monitor. Plasma monitors are not widely used because they are expensive, they are usually only available in sizes on 40 inches of bigger, and they are suspitable to screen burn in. ALso main people do not use projectors and a display monitor because they have a low screen resolution, and have very large screens. Projectors are mainly used for presenting or showing a movie to a large group of people. http://star-techcentral.com/archives/2007/5/29/prodit/Philips_1b.jpg http://www.samsung.com/us/system/consumer/product/2009/08/22/ls24kiz kfvza/2494SW_Front_Medium.jpg h h h
Screen burn in can cause irreversible damage to a computer screen. Screen burn in mostly occurs on Plasma monitors and CRT monitors, but any monitor is suspitable to screen burn in http://upload.wikimedia.org/wikipedia/commons/4/45/Screen_burn_screen_off.png http://en.wikipedia.org/wiki/File:Emerson-McDonalds_CNN_Burn-In.jpg
3. Thesis <ul><li>While computers have been around for decades their components inside keep evolving. In order to keep up with this evolving technology a Network Administrator will need to receive the proper certifications and training. </li></ul>
4. Personal Relevance
5. What is a Computer? <ul><li>A computer is a electronic device that stores and processes data, according to the instructions that the user gave it </li></ul>
6. Why Computers Are Important? <ul><li>Computers are very important in this day in age because they control almost everything we do and they are very accurate </li></ul><ul><li>Computers are also very fast & they can accomplish many tasks all at the same time </li></ul>
7. The history of the Computer
8. Invention of the First Working Computer <ul><li>The design for the first computer was made by Wilhelm Schockard </li></ul><ul><li>Schockard’s computer was a calculating machine designed to calculate the distance between the planets </li></ul><ul><li>His machine also could add or subtract up to six digit numbers </li></ul>http://upload.wikimedia.org/wikipedia/commons/5/5a/Schickardmaschine.jpg
9. First Programmable Computer <ul><li>The first programmable computer was invented in May 1941 by Konrad Zuse </li></ul><ul><li>Zuse’s computer was used to solve complicated math </li></ul><ul><li>Zuse’s Computer weighted over 2,500 pounds </li></ul><ul><li>The internal parts are similar to the modern computer </li></ul>
10. First Programmable Computer
11. Computers in the 1970s <ul><li>Early computers were all hand built </li></ul><ul><li>They were slow and could only perform simple problems </li></ul><ul><li>These computers were only affordable to the upper class </li></ul><ul><li>They were expensive </li></ul>
12. Computers in the 1990s <ul><li>The 1990s was when computers were first widely commercially available </li></ul><ul><li>They were cheap enough that the average consumer could afford one </li></ul><ul><li>The computers were not very powerful but they could complete complicated tasks </li></ul>
13. Modern Computers Today <ul><li>Most computers made today are cheap, portable, & lightweight </li></ul><ul><li>Compared to computers from the 1970s, computers today are thousands of times more powerful and cheaper </li></ul>
14. Time Line 1930 2010 1970 1975 The Company Microsoft & Apple were founded
15. Working Safely When Repairing a Computer
16. Work Environment <ul><li>Always work in a clean, dusk free environment </li></ul><ul><li>When working with circuit boards always wear a anti-static wrist strap </li></ul><ul><li>Lay all parts removed on an antistatic mat </li></ul>
17. Always Unplug The Computer <ul><li>Unplugging a computer helps protect you from a potential deadly electric shock </li></ul>
18. Remove all Hand Jewelry <ul><li>Most Hand Jewelry is conductive which can result in a electrical shock </li></ul><ul><li>Hand jewelry should also be removed when working with moving parts </li></ul>
19. Avoid Capacitors <ul><li>Capacitors are miniature “Batteries” that can hold a electrical charge after a computer is disconnected from power </li></ul><ul><li>When working on a computer always disconnect the power then wait a few minutes for the capacitors to discharge </li></ul>
20. Never Attempt to Service Non-Serviceable Parts <ul><li>Non-serviceable parts are parts that are not designed to be replaced by anybody except the manufacturer </li></ul><ul><li>ExamplesOptical DrivesHard DrivesMonitorsComputer Power Supply’s </li></ul><ul><li>Optical DrivesHard DrivesMonitorsComputer Power Supply’s </li></ul>http://maven.smith.edu/~orourke/103/CSC103_Pictures_files/CSC103_PowerSupply.jpg
23. Central Processing Unit (CPU) <ul><li>It is the most important element of a computer </li></ul><ul><li>The CPU is the “brain” of the computer </li></ul><ul><li>CPU is the part of the computer that controls and executes all tasks that the computer is trying to perform </li></ul>
24. Heat-sink <ul><li>It is a device that removes unwanted or excessive heat </li></ul><ul><li>They are usually make out of Aluminum </li></ul><ul><li>They can be either liquid or air cooled </li></ul>
25. Random-Access Memory (RAM) <ul><li>RAM is a type of computer chip that stores all of the dynamic data on the computer </li></ul><ul><li>By storing all of your dynamic date in RAM, it makes data access faster than a hard drive </li></ul>http://im3.ebidst.com/upload_big/6/4/4/1214619692-30617-0.jpg
26. Hard Disk Drive <ul><li>A hard drive is a device that magnetically stores data on a spinning disk </li></ul><ul><li>It is a non-volatile type of storage </li></ul>
27. Solid State Drive <ul><li>It is a data storage device that uses solid-state memory to store data instead of a spinning disk </li></ul><ul><li>The technology has been around for years, but only available to the military </li></ul>(SSD)
28. Motherboard <ul><li>It is a printed circuit board that holds all of the principle components that make up a computer </li></ul>
29. Video Card <ul><li>It is a expansion card that generates images to be displayed on a monitor </li></ul><ul><li>Many modern video cards have capabilities to display 3D images, and live TV </li></ul>
30. Sound Card <ul><li>It is a card in the computer case that translates computer code into audio signals </li></ul><ul><li>Most computers have sound cards built into the motherboard, but some require a separate card </li></ul>
31. Optical Disk Drive <ul><li>It is a type of disk drive that uses laser light to read to and from disks </li></ul><ul><li>Most drives today commonly can read & write to disks </li></ul><ul><li>The most common name for a optical disk drive are: CD burner & DVD burner </li></ul>
32. Computer Case <ul><li>It is the enclosure that holds all the main components for a computer </li></ul><ul><li>It is also the protective covering that prevents the components inside from getting damaged </li></ul>
33. Network Card <ul><li>A Network Card is a device that enables a computer to communicate with other computers on a network or the internet </li></ul>(NIC) Wireless Wired
34. Printer <ul><li>It is a device that accepts text or graphics from a computer and outputs the information on paper </li></ul>
35. Monitor <ul><li>It’s a device that displays images that are generated by a computer </li></ul><ul><li>There are two types of Computer Monitors </li></ul>http://star-techcentral.com/archives/2007/5/29/prodit/Philips_1b.jpg http://www.samsung.com/us/system/consumer/product/2009/08/22/ls24kizkfvza/2494SW_Front_Medium.jpg
36. Screen Burn-In
37. Types of Monitors
38. CRT Monitor <ul><li>A CRT monitor creates a picture by that it has many rows of colored dots </li></ul>(Cathode Ray Tube)
39. LCD Monitor <ul><li>One of the most popular flat screen monitors </li></ul><ul><li>Th </li></ul>(Liquid Crystal Display)
40. Conclusion <ul><li>I learned more about how and when computers were invented </li></ul><ul><li>My project had changed my opinion on computers because I never knew how big of a major role that computers played in our daily lives </li></ul>
41. Application Website
42. Class Activity
43. Works Cited <ul><li>Henderson, Harry. Career opportunities in computers and cyberspace. New York: Facts on File, 1999. Print. </li></ul><ul><li>Otfinoski, Steven. Computers. New York: Benchmark, 2008. Print. </li></ul><ul><li>Dunn, John M. The Computer Revolution. San Diego: Lucent, 2002. Print. </li></ul>
45. Works Cited <ul><li>Galas, Judith C. Computers and the internet. San Diego: Greenhaven Press, 2002. Print. </li></ul><ul><li>http://www.computers.about.com </li></ul><ul><li>http://www.simplyheatsinks.com/simheat/Basics/Principle.aspx </li></ul><ul><li>http://compreviews.about.com/od/storage/a/SSD.htm </li></ul><ul><li>http://www.wisegeek.com / </li></ul><ul><li>http://www.dictionary.com </li></ul>