miércoles, 4 de septiembre de 2013

Review exam 1

Review Exam 1
The difference between analog and digital: The main difference between analogy and digital signals is that an analogue signal is continuous and a digital signal is discrete. Analog technologies record waveforms as they are, while digital technologies convert analog signals into numbers. Digital communication systems offer much more efficiency, better performance, and much greater flexibility than analog.

Random Access Memory (RAM) - access memory is a form of computer data storage.

Read-Only Memory (ROM) -  computer memory on which data has been prerecorded.

World Wide Web – an information system on the Internet that allows documents to be connected to other documents by hypertext links, enabling the user to search for information by moving from one document to another

Data (computer) –  large quantities of standard information used for reference

Program - A software application or software program is the most commonly found software on the computer

Hypertext – A simple method of organizing and accessing text and other data through the use of hyperlinks

Hardware – The machines, wiring, and other physical components of a computer or other electronic system.

 Software – The programs and other operating information used by a computer.

Title (resource) –

Creator (resource) –

Subject (resource) -

Publisher (resource) -
Contributor (webpage) –
Format (resource) -

MP3 – Means of compressing a sound sequence into a very small file, to enable digital storage and transmission.

 Cyberbully Cyberbullying is bullying that takes place using electronic technology
Database - 
 
Desktop
 - background image of a display screen on which windows icons and other graphical items appear.
  
E-mail messages distributed by electronic devices by an account.

Home page - the main page of a website

Keyword -  word or concept of great significance.

 Password - words or numbers to get in an account

Paste - To insert (text, graphics, or other data) into a document or file.

Search Engines - computer software used to search data 

 URL Address Abbreviation of Uniform Resource Locator (URL) it is the global address of documents and other resources on the World Wide Web.

 
User name - name used to access a webpage and view people.
 
File format – a way that information is encoded for storage in a computer file.

Hacker - someone who gets in someone else account

Keyboard - it is used for typing in the computer
Retrieve (document) - the ability to search for documents by keywords and ither attributes such as date and author.

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