    Download is to copy data from a remote                   Router is a hardware connecting two
     computer/internet to a local computer                     networks that use the same protocols,
    E-Mail Electronic mail; a means of                        allowing transfer of data between them
     exchanging messages, which may include                   Telnet is a program that allows users to
     enclosed files and graphics, depending on                 login to other computers on the Internet via
     the sophistication of the system.                         TCP/IP
    File Transfer Protocol; a mechanism for                  Upload is to send data from a local
     transferring files across a network                       computer to a remote computer/internet
    Firewall is a combination of software and                URL or Uniform Resource Locator, are the
     hardware that limits access to a WWW site                 web browser addresses of internet pages
     and provides a degree of security.                        and files.
    HTML : Hypertext Markup Language is                      Web browser is a free software package
     the programmatic language that web pages                  that lets you view web pages, graphics, and
     are based on.                                             most online content.
    http is a technical acronym that means                   WWW or World Wide Web or "Web" for
     "hypertext transfer protocol", the language               short, is the most popular portion of the
     of web pages.                                             Internet.
    https is "hypertext transfer protocol                    XML is eXtensible Markup Language, a
     secured.                                                  cousin to HTML.
    IP Address is the number or name of the
     computer from which you send and receive
     information on the Internet.
                                  COMPUTER SECURITY
    It refers to techniques for ensuring that data stored in a computer cannot be read or compromised
     by any individuals without authorization.
    Most computer security measures involve data encryption and passwords.
    Data encryption is the translation of data into a form that is unintelligible without a deciphering
    A password is a secret word or phrase that gives a user access to a particular program or system.
Computer Virus                                            Computer Anti-Virus
A computer virus is a malware program that,               It is a software that designed to detect and
when executed, replicates by inserting copies of          destroy computer viruses. e.g. Kaspersky,
itself (possibly modified) into other computer            McAfee, Norton and AVG, etc.
programs, data files, or the boot sector of the
hard drive; when this replication succeeds, the
affected areas are then said to be "infected".