You are browsing through the computer section at a local brick and mortar in a search for a new computer. You look all around at the different sizes, makes, and models and finally decide on which computer you will be bringing home. One thing that really catches your eye is the 1TB HDD. You think about all the possibilities of a drive of this capacity. The pictures, the music, the videos, the documents, all can be saved onto one drive—finally. As you walk up to pay for your laptop, you notice a similar computer being sold with only 256GB HDD at a much higher price. You then see the sign: SSD.
Benefits to using a SSD:
1) Significantly faster loading times
2) Snappier program performance
3) Less Power Consumption
4) Faster Read/Write Speeds
5) No Moving Parts=Quieter
6) More Reliable/Resilient
7) Smaller and Lightweight
8) Not susceptible to magnetic fields
Drawbacks to using a SSD:
1) Considerably more expensive
2) Limited Capacity
3) Transfer Speeds Decrease over time
4) Needs Additional Adapters for Desktops
5) Total Data Loss After Failure
Is it Right for Me?
That would depend on your personal needs and how much you are willing to spend. If the performance gains do not warrant the hefty price tag than you may want to wait. If you are building a computer with the hopes to squeeze all the advantages of your hardware, then you will truly enjoy the offerings that SSD’s offer. Installations of these drives are nearly identical to installing a standard HDD with a few minor exceptions. If you experience any problems installing one of these drives, contact a computer repair company to assist you. In addition, new hybrid drives are being pushed out into the market. These combine the large capacities of a standard HDD with the performance of a SSD. However, it is important to note that you will see the same performance differences as a true SSD but certainly a major upgrade to a standard
Showing posts with label Informations. Show all posts
Showing posts with label Informations. Show all posts
What is laptop
Laptop computers generally cost more than desktop computers with the same capabilities because they are more difficult to design and manufacture. A laptop can effectively be turned into a desktop computer with a docking station, a hardware frame that supplies connections for peripheral input/output devices such as a printer or larger monitor. The less capable port replicator allows you to connect a laptop to a number of peripherals through a single plug.
Laptops usually come with displays that use thin-screen technology. The thin film transistor or active matrix screen is brighter and views better at different angles than the STN or dual-scan screen. Laptops use several different approaches for integrating a mouse into the keyboard, including the touch pad, the trackball, and the pointing stick. A serial port also allows a regular mouse to be attached. The PC Card is insertable hardware for adding amodem or network interface card to a laptop. CD-ROM and digital versatile disc drives may be built-in or attachable.
Wi-fi from laptops could damage sperm say scientists
Scientists are questioning if using wi-fi on a laptop to searh the internet could harm a man's fertility, after lab work suggested ejaculated sperm were significantly damaged after only four hours of exposure.
The benchside tests showed sperm were less able to swim and had changes in the genetic code that they carry. Experts stress this does not mean the same would occur in a real-life setting and say men should not worry unduly. But they are recommending more studies.
The preliminary research, published in the journal Fertility and Sterility, looked at semen samples from 29 healthy donors. Each donor sample was separated out into two pots. One of these pots was then stored for four hours next to a laptop that was wirelessly connected to the internet. The other was stored under identical conditions, minus the laptop.
The scientists, from Argentina and the US, suspect that the effect seen is unrelated to the heat kicked out by a laptop, although heat can damage sperm.
The UK's Health Protection Agency has been closely monitoring the safety of wi-fi.
It says people using wi-fi, or those in the proximity of wi-fi equipment, are exposed to the radio signals it emits - and some of the transmitted energy in the signals is absorbed in their bodies. However, the signals are very low power.
The HPA says there is no consistent evidence to date that exposure to radio signals from wi-fi adversely affects the health of the general population.
UK fertility expert Dr Allan Pacey, senior lecturer in andrology at the University of Sheffield, said: "The study is very well conducted, but we should be cautious about what it may infer about the fertility of men who regularly use laptops with wi-fi on their laps.
"Ejaculated sperm are particularly sensitive to many factors because outside the body they don't have the protection of the other cells, tissues and fluids of the body in which they are stored before ejaculation. Therefore, we cannot infer from this study that because a man might use a laptop with wi-fi on his lap for more than four hours then his sperm will necessarily be damaged and he will be less fertile.
"We need large epidemiological studies to determine this, and to my knowledge these have not yet been performed."
He said men should still be cautious about balancing a laptop on their thighs for hours on end.
"We know from other studies that the bottom of laptops can become incredibly hot and inadvertent testicular heating is a risk factor for poor sperm quality.
"There is a case report of a man who burnt his penis after using a laptop resting on his lap for a long time. Therefore, there are many reasons to try and use a laptop on a table where possible, and this may in itself ameliorate any theoretical concerns about wi-fi."
"The study is very well conducted, but we should be cautious about what it may infer about the fertility of men who regularly use laptops with wi-fi on their laps” UK fertility expert Dr Allan Pacey
The benchside tests showed sperm were less able to swim and had changes in the genetic code that they carry. Experts stress this does not mean the same would occur in a real-life setting and say men should not worry unduly. But they are recommending more studies.
The preliminary research, published in the journal Fertility and Sterility, looked at semen samples from 29 healthy donors. Each donor sample was separated out into two pots. One of these pots was then stored for four hours next to a laptop that was wirelessly connected to the internet. The other was stored under identical conditions, minus the laptop.
The scientists, from Argentina and the US, suspect that the effect seen is unrelated to the heat kicked out by a laptop, although heat can damage sperm.
The UK's Health Protection Agency has been closely monitoring the safety of wi-fi.
It says people using wi-fi, or those in the proximity of wi-fi equipment, are exposed to the radio signals it emits - and some of the transmitted energy in the signals is absorbed in their bodies. However, the signals are very low power.
The HPA says there is no consistent evidence to date that exposure to radio signals from wi-fi adversely affects the health of the general population.
UK fertility expert Dr Allan Pacey, senior lecturer in andrology at the University of Sheffield, said: "The study is very well conducted, but we should be cautious about what it may infer about the fertility of men who regularly use laptops with wi-fi on their laps.
"Ejaculated sperm are particularly sensitive to many factors because outside the body they don't have the protection of the other cells, tissues and fluids of the body in which they are stored before ejaculation. Therefore, we cannot infer from this study that because a man might use a laptop with wi-fi on his lap for more than four hours then his sperm will necessarily be damaged and he will be less fertile.
"We need large epidemiological studies to determine this, and to my knowledge these have not yet been performed."
He said men should still be cautious about balancing a laptop on their thighs for hours on end.
"We know from other studies that the bottom of laptops can become incredibly hot and inadvertent testicular heating is a risk factor for poor sperm quality.
"There is a case report of a man who burnt his penis after using a laptop resting on his lap for a long time. Therefore, there are many reasons to try and use a laptop on a table where possible, and this may in itself ameliorate any theoretical concerns about wi-fi."
"The study is very well conducted, but we should be cautious about what it may infer about the fertility of men who regularly use laptops with wi-fi on their laps” UK fertility expert Dr Allan Pacey
The advantage and disadvantages for using laptop and single sex education
Using Laptop:
The laptop is a nice modern machine. Almost of people use laptop. But, there are some advantages and disadvantages.
On one hand, the advantages of use laptop in class are: We can use it to search the information quickly. Also, it helps us to do home work on time. In addition, help it us to learn typing and writing quickly. Also, we can use it in anywhere and in any time.
On the other hand, the disadvantages of using laptop in class are: it doesn’t let us to be attention in class when the teacher teaches us. It helps to loss the time in study. Also, it helps to go a bad website. Also, it steals a look and be headache when we used it more. It effects to our body.
The laptop very wonderful if the students try to use perfect in class. Also, we should divide the time between study and free time.
Single sex education:
The education is a very important for all people that it helps them to improves their mind. The educations in some countries are mixed and some countries are single sex education. There are some advantages and disadvantages of single sex education.
On one hand, the advantages of single sex education are: the women sex is move easy and don’t have berried when they study alone. It help them to avoid to do any things wrong. Also, it helps to be free and do any things without shying for man or woman.
On the other hand, there are some disadvantages like: firstly, it doesn’t know more things about what the other sex thinks. Secondly, it doesn’t help to be contact with other sex without shying. Also, the educations for boy’s school are easy.
All family will feel safe when they put their sons in school and their daughter in other school.
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