Hacker Hacker
Keen to research, write the program professionals, and must have the willing to get to the bottom, read all the documents the characteristics of the problem.
In hacker circles, hacker term is no doubt with a positive meaning, such as the system hacker familiar with the operating system design and maintenance; password hacker skilled in identifying the user's password, if the computer hacker is proficient in computers, will allow the computer obediently obey a master.
Hacker is basically a hobby, often for their own interest, not for money or work needs.
The term hacker outsiders or the media is usually defined as: specific wrongful act of hacking into the system computer expert. However, such a person in the hacker's eyes are a lower level of the cracker (cracker).
According to Eric Raymond, founder of open source projects to this interpretation of the words, hacker and cracker can be divided into ethnic groups belong to two different worlds, the basic difference is, hacker is constructive, while the cracker was devoted to acts of sabotage.
hacker intent is to use an ax to chop wood workers, Computer Space may be the first to be introduced retroactively since the 1960s.
University of California at Berkeley, Professor Brian Harvey computer word when he wrote that in studying this, when the Massachusetts Institute of Technology (MIT) students who are usually divided into two groups, one tool, meaning Guaiguai Pai students are taking A-level results ; The other is the so-called hacker, which is often skipping classes and school love to sleep, but at night but energetic students who like to engage in extra-curricular activities.
This computer has anything to do with? A start and did not. But at the time hacker also distinguish between levels, just as arch-competitor, the same tool with the results. A real hacker is not a first-class all day long ignorant and incompetent, but rather keen to pursue a particular hobby, such as the study of telephone, railroad (model or real), science fiction, radio, or is the computer. And therefore have the so-called computer hacker was there, meaning the computer expert.
HAMR (Heat Assisted Magnetic Recording)
HAMR combination of self-sorting of iron - platinum (iron-platinum) molecular magnetic array, magnetic recording technology is expected to break through the so-called super-magnetic limit (superparamagnetic limit) for more than 100 times and eventually will reach up to 50 terabits per square inch storage density. This will allow people to be able to print the Library of Congress all the content stored on a notebook computer a single hard drive.
HAMR technology will significantly increase the use of digital data read-write heads to a rotating disc of a modern disk drive capacity. If the storage density (in the disk unit surface area on top of stored data bits) continues its amazing growth rate, then the next five to ten years, the data bit will become very small extent that may be due to the phenomenon of super-magnetism and unstable. On this point, the solution is to adopt a more stable media, but today's head can not write data in such media. HAMR to solve this problem, which uses laser beams to precisely where in the data bits recorded heat. When the media when the heat that is easier to write, but since then has written by rapid cooling in order to stabilize the data. Thermally-assisted recording using this approach will significantly increase the areal density of hard disk drives.
Hand-Held Computer
Handheld computers, also known as palmtop computers (PALMTOP) can be single-handedly control a computer device, typically a personal digital assistant (PDA).
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