Part 1:
- "Blue screen of Death" indicates that you might have a problem with your RAM
- You turn on your computer and nothing happens
- Internet doesn't work
- Pop ups that say you have a virus when your computer doesn't have one
- When your software doesn't work on your computer
- Older games won't load onto newer versions of Windows
- Mouse freezes when moving to the left.
- The task bar has disappeared
- The system has messages that say you don't have enough memory
- Your keyboard beeps when you press the buttons
Part 2:
Pop ups say you have a virus:
Identify the problem- ask the customer what has gone wrong. Have they done anything new to the computer recently? Ask questions about what has been going on with the computer. Ask them if they actually have a virus on their computer.
Re-create the problem- Get the customer to repeat every action that they have taken with their computer to help you re-create the problem onto another computer.
Isolate the cause- Eliminate factors that didn't have anything to do with the problem.
Formulate a correction- Figure out one or more solutions to the problem.
Apply the correction- Apply your solution to the problem.
Test the solution- When you apply the correction and nothing changes then you will have to go back and try to figure out if there is a different problem with the computer.
Document the problem and solution- Create a detailed record of the problem and solution that you have used.
Provide feedback- Ask the customer if your service has been good. Does the customer have any questions? If so then you must answer them in the best way you can think of.
Wednesday, September 26, 2007
Friday, September 21, 2007
Assignment #3
Assignment #3
The "theory" of electricity states that electricity is the term used to describe the flow of an electrical charge.
A conductor is an object that electric current can easily pass through. An insulator is an object that electric current can not pass through easily.
Voltage potential is the difference of electrical potential between two points of an electric or electronic circuit.
The two most common voltages used in computer parts are 120 volts and 230 volts. Current is the flow if electric charge.
The 1-10-100 rule is the cost to repair a defect increases exponentially the later in development lifecycle that is identified.
You calculate the amount of current through a circuit by using an ammeter to find the current and then using the formula I=V/R (Current = Voltage divided by Resistance.
The difference between AC and DC is AC current can change its direction where DC current can not.
The relationship between electric power and energy: electric power is the rate where electrical energy is transferred.
Resistance is a measure in which the degree of passing electric current changes into heat. Impedance is just like resistance but it happens in Alternating Current.
The human body’s resistance capability is 0.1A before it becomes fatal.
5 safety precautions for avoiding electric shock are: make sure your equipment is turned off before moving it, keep your tools and other equipment insulated, make sure all the equipment you are using is grounded before using, make sure you are grounded before working on anything, and make sure all the equipment is well covered that you are using.
Static Electricity is the build up of electrons on an object. It can be very dangerous to people because it can cause a heart attack and it can wipe out a computer with the static jump.
5 ways to prevent static discharge are: use hand moisturisers on a regular basis, wear a metal thimble and make sure it is always in contact with your skin, wear leather shoes, carry a coin and use it to touch metal, wear a grounded wrist band-you will never build up a charge.
5 ways to prevent static build-up are: don’t wear wool, don’t drag your feet while walking on carpet, don’t wear rubber shoes, use dryer sheets, and keep the air in the room you are working in humid.
2 things that are found in an ESD-prevention kit are: a rubber mat to work on and a grounding wire strap for your wrist.
The job of the PC’s power supply is to covert Alternating Current into Direct Current for computer use.
Specific Power Supply requirements for:
Motherboard- 240V-300V
Memory- 5-10 watts
CPU- 45 watts
Hard Drive- 1 amp of +12v
CD ROM drive- 360 watts
Floppy drive- 10-20 watts
The motherboard is the component that the power light goes on when it is started up. It is important because then the computer has power for all the components to work and think and make the computer work.
Different Power Connectors:
Molex- most common power connector, 4-pin connector
Berg- used to connect the floppy disk to the power supply, 4-pin connector
ATA-connected to the power supply and connects to serial connectors, 4-pin connector
Bibliography:
http://en.wikipedia.org/wiki/Electricity
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/conins.html
http://en.wikiepdia.org/wiki/Voltage
http://en.wikipedia.org/wiki/Power_supply
http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci21181,00.html
http://en.wikipedia.org/wiki/Electric_current
http://blog.softwareproject.org/the-110100.rule-6.html
http://en.wikipedia.org/wiki/Alternating_current
http://en.wikipedia.org/wiki/Electric_power
http://en.wikidepia.org/wiki/Resistanc
http://www.newton.dep.anl.gov/askasci/phy00/phy00367.htm
http://www.bbc.co.uk/dna/h2g2/A6378744
http://computer.howstuffworks.com/power-supply.htm
The "theory" of electricity states that electricity is the term used to describe the flow of an electrical charge.
A conductor is an object that electric current can easily pass through. An insulator is an object that electric current can not pass through easily.
Voltage potential is the difference of electrical potential between two points of an electric or electronic circuit.
The two most common voltages used in computer parts are 120 volts and 230 volts. Current is the flow if electric charge.
The 1-10-100 rule is the cost to repair a defect increases exponentially the later in development lifecycle that is identified.
You calculate the amount of current through a circuit by using an ammeter to find the current and then using the formula I=V/R (Current = Voltage divided by Resistance.
The difference between AC and DC is AC current can change its direction where DC current can not.
The relationship between electric power and energy: electric power is the rate where electrical energy is transferred.
Resistance is a measure in which the degree of passing electric current changes into heat. Impedance is just like resistance but it happens in Alternating Current.
The human body’s resistance capability is 0.1A before it becomes fatal.
5 safety precautions for avoiding electric shock are: make sure your equipment is turned off before moving it, keep your tools and other equipment insulated, make sure all the equipment you are using is grounded before using, make sure you are grounded before working on anything, and make sure all the equipment is well covered that you are using.
Static Electricity is the build up of electrons on an object. It can be very dangerous to people because it can cause a heart attack and it can wipe out a computer with the static jump.
5 ways to prevent static discharge are: use hand moisturisers on a regular basis, wear a metal thimble and make sure it is always in contact with your skin, wear leather shoes, carry a coin and use it to touch metal, wear a grounded wrist band-you will never build up a charge.
5 ways to prevent static build-up are: don’t wear wool, don’t drag your feet while walking on carpet, don’t wear rubber shoes, use dryer sheets, and keep the air in the room you are working in humid.
2 things that are found in an ESD-prevention kit are: a rubber mat to work on and a grounding wire strap for your wrist.
The job of the PC’s power supply is to covert Alternating Current into Direct Current for computer use.
Specific Power Supply requirements for:
Motherboard- 240V-300V
Memory- 5-10 watts
CPU- 45 watts
Hard Drive- 1 amp of +12v
CD ROM drive- 360 watts
Floppy drive- 10-20 watts
The motherboard is the component that the power light goes on when it is started up. It is important because then the computer has power for all the components to work and think and make the computer work.
Different Power Connectors:
Molex- most common power connector, 4-pin connector
Berg- used to connect the floppy disk to the power supply, 4-pin connector
ATA-connected to the power supply and connects to serial connectors, 4-pin connector
Bibliography:
http://en.wikipedia.org/wiki/Electricity
http://hyperphysics.phy-astr.gsu.edu/hbase/electric/conins.html
http://en.wikiepdia.org/wiki/Voltage
http://en.wikipedia.org/wiki/Power_supply
http://searchsmb.techtarget.com/sDefinition/0,,sid44_gci21181,00.html
http://en.wikipedia.org/wiki/Electric_current
http://blog.softwareproject.org/the-110100.rule-6.html
http://en.wikipedia.org/wiki/Alternating_current
http://en.wikipedia.org/wiki/Electric_power
http://en.wikidepia.org/wiki/Resistanc
http://www.newton.dep.anl.gov/askasci/phy00/phy00367.htm
http://www.bbc.co.uk/dna/h2g2/A6378744
http://computer.howstuffworks.com/power-supply.htm
Friday, September 7, 2007
Assingment #1
Timeline of the Computer- Assignment #1
In 1936, the first freely programmable computer was invented by Konrad Zuse. It was called the Z1 computer. Also invented in 1963 was the first keyboard, called the Dvorak keyboard. In 1937 John Vincent Atanasoff and Clifford Berry started to work on their ABC computer. 1938 was the year that the Hewlett Packard company created the first printer, the HP 200A. In 1941 Konrad Zuse finished his Z3. The Harvard-MARK 3 was invented in 1949. Electric Controls Company- first computer company- was founded by J. Persper Eckert and John Mauchly in the same year as the Harvard-MARK 3 was invented. Doug Englebart invented the first computer mouse in 1963. In 1969, Gary Starkweather invented the first laser printer. 1981 was the year that Hewlett-Packard super-chip, the first 32-bit, was introduced to the world. Adobe was invented in 1982. The first search engine was founded in 1990, it was called Archie. In 2005 Microsoft introduced Windows XP.
Bibliography:
http://www.computerhope.com/history/2000.htm
In 1936, the first freely programmable computer was invented by Konrad Zuse. It was called the Z1 computer. Also invented in 1963 was the first keyboard, called the Dvorak keyboard. In 1937 John Vincent Atanasoff and Clifford Berry started to work on their ABC computer. 1938 was the year that the Hewlett Packard company created the first printer, the HP 200A. In 1941 Konrad Zuse finished his Z3. The Harvard-MARK 3 was invented in 1949. Electric Controls Company- first computer company- was founded by J. Persper Eckert and John Mauchly in the same year as the Harvard-MARK 3 was invented. Doug Englebart invented the first computer mouse in 1963. In 1969, Gary Starkweather invented the first laser printer. 1981 was the year that Hewlett-Packard super-chip, the first 32-bit, was introduced to the world. Adobe was invented in 1982. The first search engine was founded in 1990, it was called Archie. In 2005 Microsoft introduced Windows XP.
Bibliography:
http://www.computerhope.com/history/2000.htm
Wednesday, September 5, 2007
Lab Log Entry #1
My early thoughts on this course are: this course sounds like it would be a good thing for me to do. Even though I don’t know a thing about computers. I am taking this course because it sounds like a good thing for me to know for what I want to do after I finish school. I would like to know how a computer actually works. I think that I am going to learn about it in the course. I don’t think I know anything that I can offer throughout this course. My computer ‘strengths’ are that I know how to use a word document and I know how to find information on the Internet. My computer ‘weaknesses’ are pretty much everything else about how a computer works.
Subscribe to:
Comments (Atom)