5
12 Browser
A web browser is an application for accessing websites. When
a user requests a web page from a particular website, the
browser retrieves its files from a web server and then displays
the page on the user's screen.
13 CPU (central processing unit)
A central processing unit (CPU), also called a central processor
or main processor, is the most important processor in a given
computer. Its electronic circuitry
executes instructions of a
computer program, such as arithmetic, logic, controlling, and
input/output (I/O)
operations
14 RAM (random access memory)
Random
-
access memory
is a form of computer memory that can
be read and changed in any order, typically used to store working
data and machine code.
15 ROM (read only memory)
ROM, is a type of computer storage containing non-volatile,
permanent data that, normally,
can only be read, not written to.
16 Encryption
Encryption is the method by which information is converted
into secret code that hides the information's true meaning
17
Database
A database is an organized collection of structured information,
or data, typically stored electronically in a computer system
18 Back up
a backup, or data backup is a copy of computer data taken and
stored elsewhere so that it may be used to restore the original
after a data loss event.
19
Server
server is a piece of computer hardware or software (computer
program) that provides functionality for other programs or
devices, called "clients"
20 Cloud computing
Cloud computing is the on-demand
availability of computer
system resources, especially data storage (cloud storage) and
computing power, without direct active management by the
user
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