The correct answer: Data independence
Data independence<span> is the type of </span>data<span> transparency that matters for a centralised DBMS. It refers to the immunity of user applications to changes made in the definition and organization of </span>data<span>. Physical </span>data independence<span> deals with hiding the details of the storage structure from user applications.
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The logical<span> structure of the data is known as the 'schema definition'. In general, if a user application operates on a subset of the </span>attributes<span> of a </span>relation<span>, it should not be affected later when new attributes are added to the same relation. Logical data independence indicates that the conceptual schema can be changed without affecting the existing schemas.
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<span>The physical structure of the data is referred to as "physical data description". Physical data independence deals with hiding the details of the storage structure from user applications. The application should not be involved with these issues since, conceptually, there is no difference in the operations carried out against the data.</span>
Answer:
Convey more factual data that helps facilitate decision making - REPORTS
Reports are made with factual data to show the condition of the subject so convey more factual data that helps in decision making.
Are one page long - MEMORANDUMS
Memorandums are used to convey new information and are usually brief which means they take one or two pages.
Are written in a block style, with the body text aligned along the left margin - BUSINESS LETTERS
Business letters are to be as formal as possible and this includes writing them block style and aligning the text to the left margin.
Allow attachments of files, such as images - EMAILS
As emails are softcopy and computer based, they allow for the attachment of other files such as images, documents, audio, etc.
Answer:
"Feedback" is the correct answer for the above question.
Explanation:
- Feedback is used in any information system or any communication system to tells that any process is doing in the right direction.
- It is used in communication channels to tell the sender that the message is received by the receiver.
- It is a type of message which is sent by the user to the system that he gets the correct or wrong output by that system.
- The above question asked about the term which is used in the information system which suggests changing the processing activity. This is known as feedback which is described above.
Answer:
they send electrical signals to the buzzer. The buzzer changes those electrical signals into sound. You hear the buzzer sound and know that someone is calling you.
Explanation:
Peripheral Bus is not associated with the SATA function on a computer as they are not universal to each other. If you can go more into context, that would be great.
