Computers are electronic devices, operating under the command handler
stored in computer memory, can receive data, process the data based on
specific rules, print the results and store data for future use. Understanding
in general, the computer processes the data into information, while the
data is a collection of something that has not been processed, which
can be text, numbers, audio and video. While the meaning and convey information useful for humans.
The advantages of using a computer, among them:
1. Speed:
Operating a computer occurs through electronic circuits, timing of
data, command and information flowing through the circuit, then the
data, commands and information are transferred with incredible speed. Most computer processes billions and even trillions of operations per second.
2. Belief:
The electronic components of a modern computer is reliable and
trustworthy because these components are rarely damaged, and the
information provided computers is also quite accurate.
3. Consistency: consistency which is not possessed by humans. But
the computer has it, for example, if given the same input, then the
computer will produce the same results consistently, and the computer
generates an error-free results provided the input and the command
correctly.
4. Storage: a computer capable of storing a lot of data and makes this data available to be processed whenever needed.
5. Communication:
The computer can now communicate with other computers, even without the
use of cables, the computer allows users to communicate with each other
without being limited by time and distance.
However, the computer also have flaws or damages that can be generated, such as:
1. Violation of privacy: Notes and confidential information stored in the computer and should be adequately protected. However, in certain ways confidential data can be stolen by using certain methods.
2. The impact on employment:
Although computers improve productivity and create hundreds of
thousands of new oekerja throughout the industry, the expertise of the
millions of workers have been replaced by computers.
3. Health risks: the use of computers for a long time or not in the right way can cause injury or illness.
4. Impact on the environment: The process of making and waste from the computer to produce natural resources and pollute the environment. Strategies
that can help protect the environment include recycling, the rules on
computer-making process, the extension of the computer age, and donating
unused computer.
Computer is not something foreign to the people today, almost every
house in the big cities in Indonesia already have a computer as a tool
in doing something.
For students of computer science, engineering informatics, information
systems majors even others who use the computer, you should know about
computers and how the computer works. But keep in mind, the computer can do a command from the user with the operating system.
A computer can work with the involvement of 3 (three) major components in everyday computer use, these components are often encountered such as:
1. HARDWARE (Hardware), such as: Desktop PC, Laptop, Tablet, PC, Server. Hardware basically consists of three main parts:
·
Input Unit,
·
Process Unit, dan
·
Output Unit.
2. SOFTWARE (Software). Consists of two parts:
·
Operating system,
·
Application.
3. Brainware (User / Human Resources), which uses a computer that is categorized according to skill or profession, such as:
·
Operator (Data Entry/EDP),
·
System Programmer,
·
Systems Analysis(Program, Database and Network),
·
Systems Administrator, Network Engineer,
·
Technical Engineer
(Technical Support),
·
Web Developer / Web
Designer,
·
Animator, dll
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