UTF

Reading: U tea f
Full spelling: UCS Transformation Format
Field:
Expression of information > letter/font > character code > UTF

The computer to handle the character string which is described UCS-2 and UCS-4 (Unicode) with making use of the character set which is defined the system which it will be the byte line (the line of numerical value) is converted easily. 1 letters 1 - 6 bytes (under present conditions the longest 4 bytes) numerical value of variable length (the byte line) UTF-7 in order to use UTF-16 and Unicode in order to imbed the letter of the portion of UCS-4 in the gathering of UTF-8 and UCS-2 which are converted with the mail, there are 4 types of UTF-32 which expresses all UCS-4 letters at 4 bytes.

UTF-16

Reading: U tea f [ji] [yu] [u] [ro] [ku]
Full spelling: 16-bit UCS Transformation Format
Field:
Expression of information > letter/font > character code > UTF-16

In the character string which is described UCS-2 and UCS-4 (Unicode) with making use of the character set which is defined, encoding system in order to imbed the letter of the portion of UCS-4. It is possible such as UTF-8 to jointly use with other UTF. With UTF-16 it expresses the range of UCS-2 basically, that way as for the part of UCS-4 using individual encoding system, it expresses at 4 bytes. With UTF-16 the method of writing the 1st byte of 2 byte letter first (big endian) with the method of writing the 1st byte afterwards (Little endian) is prepared. But, because as for these two methods distinction is not attached that way, distinction that has tried is attached by the fact that the sign which is called to the forefront of the document the byte order mark is made to insert.

UTF-8

Reading: U tea f bee
Full spelling: 8-bit UCS Transformation Format
Field:
Expression of information > letter/font > character code > UTF-8

One of the systems which convert the character string which is described making use of the character set which with UCS-2 and UCS-4 (Unicode) is defined to the byte line (line of numerical value). With UTF-8 1 letters it has reached the point where it converts to the numerical value (byte line) of variable length of 1 - 6 bytes, but when the Unicode letter which presently is defined is expressed with UTF-8, being longest, it is converted to the byte line of 4 bytes.

With UTF-8, because the result of converting the first 128 letters (from U+0000 as it is called in UCS-2 U+007F) of Unicode completely becomes same as ASCII, there is a merit that affinity of the former processing system is high. On the one hand, as for letter such as Japanese because those which originally are 2 bytes are expressed at 3 bytes and 4 bytes, there is a fault that data size becomes large in comparison with UTF-16.

UTM

Reading: U tea m
Full spelling: Unified Threat Management
Field:
Security > network > UTM
Security > virus/worm > UTM

The fire wall and VPN function in the base, the anti virus, manage the plural security functions such as illegitimate invasion defense and Web contents filtering integrated. In addition, it is the equipment where those security functions are integrated. Especially it assumes that in the talent and the cost aspect the introduction effect is high in IT investment in the severe ordinary small and medium-sized business market.

The UTM equipment simplification of time of setting and management and simplification of introduction, actualizes low operational cost by stuffing plural security functions in one. Maintenance and the like such as update job the equipment itself because one there is an advantage where it can do efficiently.

But because various functions are gathered and summarized in one, when individual function and efficiency are compared, UTM compared to the single unit product efficiency and expandability is higher, the case where the optimum security functional choices increase is many. In addition, when UTM knocks down, being a possibility knocking down to also Internet connection one of the weak points.

UTP <From non seal twisted pair line>

Reading: The u tea tweet
Full spelling: Unshielded Twist Pair cable
Field:
Network technology > cable > UTP
LAN > Ethernet > UTP

One of types of communication cable. With the cable which adjusts the wire rod each which it is possible with the copper from 2, the seal those which have not been done. It is used for the wiring of Ethernet and the like. It is cheaper than the amount STP which the seal is not done, but in anti- noise efficiency it is inferior to STP. With general home and usual office environment UTP is used, but at the place where such as factory noise is many STP is used.