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Computer Science Final
Intro To Information Science Final
9
Computer Science
Undergraduate 1
12/11/2011

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Term
UDP
Definition
User Data Protocol
- a protocol that does not establish connection prior to sending message
- a connectionless protocol, but more efficient
-unlike TCP
Term
Random Access Memeory
Definition
-acts independently of other past operations performed
-component of main memory which is divided into memory cells that the CPU can access
- fast unit of memory that is used for tasks currently in process
-volatile
Term
URL
Definition
Uniform Resource Locator
-contains protocol to communicate with server controlling access of information(http), mnemonic name of machine containing server, directory path that indicates the location of the file within the host system, the name of the document
Term
Abstraction
Definition
- the distinction between the external properties of an entities and the details of the entities internal composition
-allows us to ignore the internal details of a device and take it as a single entity
-->different levels of abstraction
Term
Boolean Operation
Definition
-Operations that manipulate true and false values
-the basics are AND, OR,XOR
-combine true and false values
Term
boolean gate
Definition
- a a device that produces the output of a boolean operation when given an input value

- those drawings
Term
SQL
Definition
Structured Query Language
- a language, interpreted by the DBMS, that is used to query the database
Term
Stored Program Concept
Definition
-programs, instructions, and data can be stored in main memory
-people used to think instructions were only stored in CPU
Term
Link Layer
Definition
- responsible for the recieval and transmission of packets
- determines whose turn it is to speak
-gives message an end and a start
-involved in the intermediate levels along with network layer
-error checking at LAN level
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