Computer Cooling:
A. Choose the coldest place in the room to place the computer. Conditions permitting, the lower the floor where the computer is placed (hot air rises). The computer has to be placed against the wall, and it chooses the wall of the east that rises to the sun. Do not place a large calorific value around the appliance.
B. The specific positioning of the host, to choose the location conducive to air circulation. There is room on the top of the
letters, and is still represented by 1 bytes, while for example Chinese it is represented in 2 bytes. English and Chinese can be processed uniformly, and the method of distinguishing whether to encode in Chinese is 2 bytes in the first place of the high byte is 1, You must check the byte that follows it, and 2 bytes are interpreted as 1 characters. GB2312,GBK to GB18030 all belong to DBCS. In addition, ANSI encoding in Simplified Chinese windows is usually referred to as GBK (code page 936).The
Standardization) and uicode Association (an association of software manufacturers) started their work respectively. That is, the ISO 10646 project of ISO and the Unicode project of Unicode Association. Later, they began to merge the work results of both parties, using the same font and word code. However, both projects have their own standards.
UCs (Unicode Character Set ):This is the name of uicode in ISO, with two sets of encoding methods in mind.
of string manipulation, which is a very important reason for Java to use UTF-16 as a character storage format for memory.UTF-8The UTF16 is fixed using 2 bytes (or 4 bytes) to represent characters, which makes it incompatible with earlier, heavily used ASCII code, while some special characters have special meanings in UNIX systems, such as '/0 ' or '/', which have special meanings in filenames and other C library function parameters. In addition, some of the most commonly used characters (Wester
(Hebrew)-Hebrew (visual order)
* ISO 8859-8-i-Hebrew (logical order)
* ISO 8859-9 (Latin-5 or Turkish)-it wraps Latin-1 Icelandic letters and joins the Turkish alphabet.
* ISO 8859-10 (Latin-6 or Nordic)-North Germanic branch, used to replace Latin-4.
* ISO 8859-11 (Thai)-Thai, evolved from the TIS620 standard Word set in Thailand.
* ISO 8859-13 (Latin-7 or Baltic Rim)-Baltic languages
* ISO 8859-14 (Latin-8 or Celtic)-Celtic languages
* ISO 8859-15 (Latin-9)-Western European languages,
But I this feature is the principle of investigation, I care about things want to understand, so the QQ group in turn send information, no one heeded. Alas, depressed. Had to own Google it and teach myself. The following is a detailed description.
There is no one to ask for help, I have some personal thoughts. Nowadays people have very few to delve into theory, people's idea is to muddle along, people usually just know what, do not know why. For programming, individuals think this is a sad thin
Xena,xena Networks Company's network tester, can also cover the Ethernet L2~L7 layer tester, but the function is simple, the interface is very concise, use it more intuitive and convenient.Automated test scenarios for 1.XenaTest the at frame on the PC-->TCL Drive Library SIG_TEQ_XENA.TCL-----(Ethernet cable)----->xena ChassisPC on the Xena not install the client Xenamanager can. Xena's chassis internal command is not a TCL-formatted command, but a Xen
contains all the character sets known to humans, it can theoretically parse all the text.
Unicode
Unicode Character Set is actually an International StandardISO 10646. The Unicode Character Set is published by the Unicode Association.
ISO 10646DefinedUniversal Character Set). UCOS is a superset standard for all other character sets. ISO 10646 defines a 31-bit character set. however, in this huge encoding space, only the first 65534 code bits (0x0000 to 0 xfffd) are allocated so far ). the 16-
UTF encoding
The UTF-8 is to encode the UCS as a 8-bit unit. The encoding from UCS-2 to UTF-8 is as follows:
UCS-2 encoding (16 binary)
UTF-8 byte stream (binary)
0000-007f
0xxxxxxx
0080-07ff
110xxxxx 10xxxxxx
0800-ffff
1110xxxx 10xxxxxx 10xxxxxx
For example, the Unicode encoding of the word "Han" is 6c49. 6c49 is between 0800-ffff, so I'm sure to use a 3-byte te
hard drive is the most afraid of vibration, light affects data security, the entire hard drive reimbursement. Therefore, you are not recommended to use this hard drive fan. low price and quality hard drive fan is not How should we give the hard disk heat? The most basic, do not and other accessories such as floppy drive too close; If you're a friend of a new machine, it is highly recommended to buy a chassis with a fan seat in front of the hard d
1, the fatal weakness--vibration
Hard disk is a mechanical product, vibration can be said to be a hard enemy, hard disk internal structure is quite sophisticated, the head from thousands of rpm per minute of the surface of the disc only a few microns high, once the vibration is stronger then there will be read and write anomalies or even caused the disk or magnetic head physical damage, the consequences are quite serious.
Hard disk reading and writing is forbidden to move: In fact, the hard di
Computer chassis is an indispensable part of the computer, it plays a fixed, protect the role of various parts of the computer, in addition, the computer chassis with electromagnetic radiation shielding important role. Because the computer chassis has CPU, graphics cards, motherboards and other accessories to develop fast, so in the assembly of computers has not
Summer computer fever serious how to do? Computer chassis due to the long running, inadvertently accumulated thick dust, these dust sipilailian in the various hardware of the heatsink and fan, resulting in uneven thermal conductivity, heat dissipation effect. This is the principle of fouling with the kettle is probably consistent, but the heat is a reverse engineering, loose dust attached to the heatsink, so that the heat on the surface accumulati
The characters defined in BMP can be encoded by 16 characters, that is, a UTF-16 of only one word (word, 2 bytes.Plane 0 (0000-ffff ):Basic multilingual plane(BMP)Therefore, Windows API, wchar/w_char (w_char can be 4 bytes from the Language Perspective), and char in Java/C # only supports BMP.
Although the UTF-16 is variable-length encoding, it is not like the UTF-8, it can be 1, 2, 3, 4 bytes, it can only be 2 or 4 bytes.
8. How many characters can Unicode contain? Is it dubyte?U
at the number of encoding formats supported by iconv. It seems that there are many formats:
Apple @ kissAir: ruby_src $ iconv-l
ANSI_X3.4-1968 ANSI_X3.4-1986 ASCII CP367 IBM367 ISO-IR-6 ISO646-US ISO_646.IRV: 1991 US US-ASCII CSASCII
UTF-8
UTF-8-MAC UTF8-MAC
ISO-10646-UCS-2 UCS-2 CSUNICODE
UCS-2BE UNICODE-1-1 UNICODEBIG CSUNICODE11
z-coordinate)
Specifies the z-coordinate of the current viewport's center point, read-only
Height (altitude)
Specifies the height of the current viewport, read-only
Width (breadth)
Specifies the width of the current viewport, read-only
Misc (Other)
Table 8-7 Description of attribute entries
Entry
Description
UCS icon on (open
interfaces, but generally only four interfaces are provided in the back panel, the remaining four must be installed on the USB interface in front of the chassis for ease of use. Currently, the front-end USB interface is provided on the motherboard. For details, see:
Is the front USB interface provided on the motherboard. For example, there are two groups of USB interfaces, each of which can be connected with two external USB interfaces: USB 4, 5, U
How to solve the computer noise?
The noise of the computer comes from these aspects: the power supply fan, the CPU fan, the chassis fan, the video card, the noise of the power supply fan, the noise of the hard disk and the optical drive, and the sound of the chassis resonance. We hear the computer running "hum" sound, is the superposition of these sounds, to effectively reduce computer noise, the use of
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.