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Computer Terminology
Questions and answers about different terms related to computers, as well as computer language that is popularly used today.
11,612 Questions
What does the greek word 'atmos' mean?
The word "atmos" is the Greek translation of the word "vapor." The word "atmosphere" translates from Greek literally as "vapor sphere."
In metric system does MB equals MB?
In the metric system, MB typically refers to megabytes. It is a unit of digital information storage equivalent to 1,000,000 bytes. It is different from MB, which refers to millibars, a unit of pressure equal to one thousandth of a bar.
Prisms and gratings have different dispersive properties. Grating has a linear dispersion of wavelengths meaning the band on the focal plane varies linearly with the wavelength. Prisms are not linear, the shorter the wavelength the greater the dispersion. Thus, when a spectrum is being scanned, the dispersive device needs to rotates different amounts depending on whether it is prism or grating to focus light on the exit slit. If its grating, the slit width will need to be varied minimally; if it is a prism, the slit width will need larger changes as the dispersion gets greater.
The hertz, named after Heinrich Hertz, is a measure of frequency. It means cycles per second. In mathematical terminology its 1/s or s^-1. Giga is the same standard SI prefix meaning 10^9. So 1 gigahertz is 1,000,000,000 (cycles) per second. The FCC has a 'hole' in the frequency spectrum opened up for 'free range' use around 2.4 GHz. This is why most all modern devices you see operate in this range. A good general overview of frequencies is over at wikipedia. http://en.wikipedia.org/wiki/Hertz
Dogs can hear from what hertz to what hertz?
I researched this question and apparently: "Dogs hear high tones in particular much better than humans do. Humans can pick up an average of 20,000 acoustic vibrations per second (kHz), whereas a dog is able to perceive between 40,000 and 100,000 vibrations." Although dogs can hear pretty well compared to humans, bats can detect twice as high a pitch as dogs.
How many gigabytes is there in one terabyte?
1000 or 1024
When referring to ACTUAL SPACE on a storage device or in memory, each "unit" is 1024 of the previous unit.
1024 bytes = kilobyte
1024 kilobytes = megabyte
1024 megabytes = gigabyte
1024 gigabytes = terabyte
etc.
When selling storage devices (such as CDs or USB drives), the packaging will use a 1000 rule (same as above, but with 1000 instead of 1024), thus giving the appearance of having slightly more capacity. This is considered acceptable because in standard english, the prefixes kilo-, mega-, giga-, use the "1000 rule."
Computers use 1024 because it is the perfect power of 2 closest to 1000. Using a power of 2 is important because computers are binary (base 2) systems.
To help make this difference less ambiguous, a new set of prefixes was proposed to represent powers of 1024 (rather than 1000). They are kibi-, mebi-, gibi-, tebi-, etc.
Ernest Rutherford Did he become famous straightaway?
Ernest Rutherford discovered that atoms have a very dense nucleus, which contains protons.
Rutherford eventually coined the terms for some of the most basic principles in the field: alpha, beta, and gamma rays, the proton, the neutron, half-life, and daughter atoms
he found that all known radioactive elements emit two kinds of radiation: positively and negatively charged, or alpha and beta. He showed that every radioactive element decreases in radioactivity over a unique and regular time, or half-life, ultimately becoming stable.
He discovered the atomic nucleus and developed a http://wiki.answers.com/dp13at.htmlelof the atom that was similar to the solar system.
Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is, it was roughly the same consistency throughout, with negatively-charged electrons scattered about in it like raisins in a pudding. As part of an experiment with x-rays in 1909, Rutherford was shooting a beam of alpha particles (or alpha rays, emitted by the radioactive element radium) at a sheet of gold foil only 1/3000 of an inch thick, and tracing the particles' paths. Most of the particles went right through the foil, which would be expected if the atoms in the gold were like a plum pudding. But every now and then, a particle bounced back as though it had hit something solid. After tracing many particles and examining the patterns, Rutherford deduced that the atom must have nearly all its mass, and positive charge, in a central nucleus about 10,000 times smaller than the atom itself. All of the negative charge was held in the electrons, which must orbit the dense nucleus like planets around the sun.
He was the New Zealand physicist who split the atom
From: Bradwell Institute Information
What are the advantages and disadvantages of OMR?
Advantages:1.There is a large number of document to justify designing and printing them.2.The user can only make marks and cannot write any information.
Disadvantages:1.Document for mark reader are complicated to design.2.input of the data to computer is slow.3.it is difficult for a computer to check marked data.4.the person putting the marks on the document has to follow the instruction.
Difference between inverted lists and multi lists?
In a Multi-list organisation an index entry points to the first data record in the
list, whereas in inverted index file an index entry has address pointers to all the
data records related to it.
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A multi-list index has fixed length records, whereas an inverted index contains
variable length records
How many hertz are in a Playstation?
In America we use 60 hertz power. It is changed to d.c. to operate the unit. Their processors run at high frequencies. Many megahertz. You have to know which system to know that frequency.
What factors determine the quality of soap?
The quality of soap is determined by the ingredients used, ratio of fats to lye, curing time, scent, colorants, and additives like exfoliants or moisturizers. The method of production, such as hot process or cold process, can also affect the quality of the final soap product. Additionally, personal preferences and skin sensitivities play a role in determining the quality of soap for individual users.
How does MB compare to kb compare to gb?
Quite simply, a kb is 1024 b (bits), a mb is 1024 kb, a gb is 1024 mb. You may have learned in school that kilo- means a thousand, and mega- means a million. This is basically true but needs further explanation.
When referencing data, a kilobit typically is 210 (two to the tenth power), a megabit is 220, and gigabit is 230, etc., etc... Now, mB or MB (notice the caps) means megabyte which is 8 megabits; every 8 bits equals 1 byte.
As far as megabytes go, 1024 bytes = 1 Kilobyte, 1024 KB = 1 MB, 1024 MB = 1 GB, etc.
One byte can typically refer to one typed character (ASCII text is represented by 7 bits) and one bit is only a single 1 or 0, the basis of digital information.
look up "brumate" on google, its close to hiberating but for lizards. They should also be eating, every few days
6-x is a mathematical expression representing the result of subtracting x from 6.
What is a difference between broadband ISDN and narrowband ISDN?
Here are some differences between broadband ISDN and narrowband ISDN:
1) Narrowband ISDN uses 64 kb/s channel, while broadband ISDN uses 100 mb/s channels.
2) Broadband uses call relay, while narrowband uses frame relay.
3) In narrowband, ISDN information carries narrow frequency, while in broadband, ISDN uses a wide band of frequency.
What is the fastest mainframe?
IBM z15 is considered to be one of the fastest mainframes available in the market. It offers high performance, scalability, and security features tailored for mission-critical workloads.
What does you all live down stream mean?
That every person is affected by others.
The analogy is that people who live upriver believe they can foul the water and not be bothered by it, it only hurts the people downriver.
The reality is that we are all 'down stream' from someone and harmful actions hurt us all.
Is a gig more than a gigabyte?
In the context of data storage, a "gig" is usually referring to gigabyte (GB), which represents a unit of digital information equal to 1,073,741,824 bytes. "Gig" can also sometimes refer to a job or task performed for pay, often in the context of the gig economy.
Brain mapping is a set of neuroscience techniques predicated on the mapping of quantities or properties onto spatial representations of the brain resulting in maps. It is conceived as the higher form of neuroimaging.
What does the abbreviation 'CPU' stand for?
The abbreviation cpu can stand for many things. Most commonly known as standing for "Central Processing Unit" which is a part of a computer system, the "CPU" is the "brain" of the computer, or what controls it.
What is the difference between migration and hibernation?
Migration is movement from one place to another. Birds migrate to warmer climates when winter comes.
Hibernation is sleeping or becoming dormant in the winter. Bears hibernate in the winter, they don't move to anther location but hibernate in the area where they have lived.
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Hibernation is to go to sleep for the winter.
Migration is to travel to other locations as the seasons require.
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Hibernation is when the body of an animal begins to slow down so it goes into a state of sleep when the body is still living but the body itself is asleep.
Migration is when animals travel to another place to escape weather conditions
When animals migrate it means they are moving to a different place for one reason or another e.g Geese fly south to warmer weather in the winter because they do not like the cold. Hibernation is where an animal sleeps throughout the whole of a period of time. E.g bears hibernate during winter due to the cold, they wake up when spring starts. They eat loads and loads before winter then because they've eaten so much it sustains them throughout winter.
The number of characters that can fit in a 5MB file can vary widely depending on the encoding used. As a rough estimate, you can fit around 5 million to 6 million characters if using UTF-8 encoding. However, this number can be significantly higher for simpler encodings like ASCII.
What are the different kinds of CPU?
There are many types of CPU's..
For Intel, you have socket 775, and a bunch of others I'm blanking on right about now.
For AMD, you have AM2.
If you're talking about types (e.g. Pentium), you have AMD Phenom, Opteron, Athlon, Sempron, Duron. On the Intel side, you have Celeron, Pentium(s), CoreDuo, Core2Duo, Core2Quads.
