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Q: Which identifer measures an idividuals unique physical characteristics or behavior and compares it to a stored digital template to authenticate the identity of the individual?
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How do you identify old postage stamps with no wording on them just pictures?

{| |- | The first step is to try and identify the country the stamp was issued in. There are some 'stamp identifer' sites on the web that can provide clues. Consult a stamp catalog such as Scott's, which include pictures and descriptions of all the stamps. It also provides details on identification as well as a description on how stamps are rated and graded. |}


What is a system for a library?

Dewey decimal is an example of a library system. It was first published by Melvil Dewey in 1876. The Dewey Decimal System first identifies subject matter of a book or other material (example: stereo record)--this is called a Class. It contains classes from 000 to 900. For example, Class 100 is Philosophy and psychology. Then it adds a unique identifer for that one item, listed under the subject matter coding. This identifies the specific book or other item.


What type of project is Asset Management?

An Asset Management type project is a process that is put in place in order to track and manage the equipments (including hardware and software items). They can be quite complicated, especially if the equipments are to be distributed to a number of places and used by a number of people. Some of the unique things that should be considered when putting an Asset Management project in place are: 1. Develop an appropriate architecture up front that has future expansion capabilities that are easy and cheap to implement. Asking for everything to be recalled to update the system is not generally really feasible once you have deployed the system. 2. Have an appropriate computer systems that allows real-time tracking (otherwise your asset could appear in two places and you will not know the real location), allows remote synchronization (changes in the field can be sent back to the back office computer system) and has back-up and change history capability (so you can look at previous records). 3. Unique Codification so each individual items has a serial type identifer and a group type identifier. Make sure that these can be read in the field and can be updated in the field, without having to bring all the assets back to the original manufacturing facility. Remember, in future items will be added and removed so make sure any new items have a new number and try not to use old numbers again (it can cause confusion if some old items are still fielded). If you are involved with software versions, make sure you have two different numbers for the hardware item without software on, and one with the software loaded onto it. People will need to differentiate between the two versions. Have an appropriate configuration management system in-place, because software items often get up-dated with new versions/updates. 4. Think about how you will manage the items once they are deployed. The processes people follow and the electronic systems used to accept items under their control, how they log any problems, how they do returns for damaged items, how they request new or updated items, how you do product recalls, how you manage software licenses, how you send request reminders for them to do things, and how data is regularly synchronized to make sure you have the most up to date picture. Remember anything with people involved in making changes is liable to introduce errors into the system, so make the system electronic, auditable and self-checkable if possible.


Why is the hard drive labeled C?

C:/ c is the hard drive a brilliant question, as a computer tech, i always just accepted it as fact upon contemplation i would answer that it is a randomly chosen identifer for the local drive you would probably have had to be there when the engineer was configuring, for all intents and purposes, one of the first artificial intelligence prototypes and, well, "i'll name it C" you could probably get the correct answer from a archived computer book, documentary, etc you will never see "his" notes c (lower case) is the constant for the speed of light Note: This is a correct answer but somebody changed the question on you...It has been reverted back to the original. Answer 2: The earliest computers operating under the various DOS versions were not equipped with a hard drive. They operated, in some cases by running the operating system out of one floppy drive and using the second floppy for applications. The floppies were addressed as A and B. After hard drives began to be installed, it was still common for computers to have two floppies. After the old 5-1/4 floppy format gave way to the new 3-1/2, it was common to find both drives on computers because the user was assumed to have all their important stuff still on the old 5-1/4's. That created a bit of a problem because the A and B were so firmly entrenched in their use for addressing the floppy drives that it was impractical to use A or B for anything else. Also, software was written to default to the C-drive when programs were installed. C:\ does not always refer to a hard drive, it is used to address the first un-hidden DOS sector on an IDE or SATA device. As such, a hard drive may be partitioned to have many partitions and those partitions can be assigned letters of your choosing by using drive management programs. Networked computers can also map different letters to various network locations. Optical drives are generally going to take a higher letter if the system has a hard drive. The C-drive does not always have to refer to a hard drive. When a virtual drive is created in memory, as when you use Windows' recovery, it can be addressed as C. Linux, Unix and MacOS do not use any drive letters.


Importance of IP address?

Like every home in the real world has his own address, every computer in the Internet has it's own address - an IP address. Just like when you can't receive anything via mail if nobody knows your address, nobody can send you any information (like e-mails) if nobody knows your computer's address. If you do not know your IP address, see your system's properties. Hope you find this useful.


Which are valid identifiers?

Identifiers can be composed of letters, numbers, _ and $. Identifiers can only begin with a letter, _ or $. The identifer can be of mixed case. also. read page 51, paragraph titled"User- Defined Identifiers" in the book ITT gave you. The answer to your homework is clearly stated there.


What is the differentiate between dbms and rdbms?

RDBMS.RDBMS is based on relation between data. Data the "belongs together", are "related" and where multiple data are related in the same way, one way of viewing these is as a row in a table, and where data of the same category are placed underneath one another as column. A single row is here called a "tupple". All the relational operators are defined from their mathematical properties, where you find addition, subtraction, division and multiplication. Beware that multiplication is not commutative, the order of the what you "join" matters. Then on to ODBMS...First, an object is an autonymous instance of a class tht contains data, methods and reference and relationship to other objects. Object can contain one or more other objects, and its methods or "procedures" can operate on data local to the object or on other object.The dominant relationship between objects is their construction mode, or "inheritance". You may hide data in an object - "encapsulate" it, you make a new class, based on an existing class, creating a new object type. The new object type ("class") need not contain new data, may be just a change in the actions. Like "Parents: are still considered people but have one of more "children" - also people.So, to be a proper ODBMS, the database must contain methods and procedures beside just data. There are some ODBMS around but most just makes claims to capability to support object oriented programming. The programming is where you keep all the logic, the methods and procedures, and the objects are "populated" with data from the database. The database can be anything - RDBMS and Codasyl DBTG type. Codasyl supports object reference, and allows People to have "Parents" that has "Children" - where this has to be implemented either by a special table that maps a "parent" to their "children" or make a column implement this.A database is a repository of data in one place, allowing this to be used by all. Your address book is a repository of names, addresses, telephone numbers and how this is used is determined by the methods in the various applications - it is not held in the address book. The email client knows how to use the email address, the VoIP how to use the phone number, the IM how to use user ID - the methods are scattered around. This is not how it was intended in a object oriented context. To be blunt, the OO worried less about the "persistency" of data, that was considered "solved" but definitely not with a relational database system.Good RDBMS contains extensions that supports referential integrity and logic consistency checks such as "every child must have parents". The RDBMS may better be considered as a special object that is used to hold data, abd retain consistency. Claims of ODBMS are usually a hogwash of marketing gimmickry and misunderstanding.