Basic computer operations

                                INTRODUCTORY

     Electronic technology advances increasingly penetrated almost every aspect of human life, both in the field of telecommunications, information, administration and offices,companies and even household goods can not be separated from the electronic technology.

Computer technology offers a variety of convenience with the sophistication to work on processing data quickly, accurately, and efficiently. Even the current computer technology combined with the ability of communication technologies to explore corners of the world information such as the Internet.

     Talking about computers, then in the right frame of mind we can not be separated from what is called a system. System is a collection of parts (subsystems) are related to oneand establish mechanisms that provide specific functions and benefits.

What is Computer

The computer is an electronic circuit that works together. The computer can do the jobautomatically through a series of instructions (program) is given, and the data processing devices into information through a specific process.

For more information please read article about :

1. Computer's Components

2. Charles Babbage, The inventor of the computer

3. Parts of the computer devices that are harmful

4. The negative impact of computers on health

5. Arrangement of computer equipment

6. Using a computer with the correct position

7. CPU

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CPU

     CPU stands for Central Processing Unit, refers to computer hardware to understand and carry out the instructions and data from the microprocessor is a CPU that is produced in integrated circuits, often in a single-chip package. Since the mid-1970s,single-chip microprocessors have been commonly used and an important aspect in theimplementation of the CPU. CPU functions like a calculator, it's just more powerful CPU processing power. The main function of the CPU is to perform arithmetic and logic operations on data retrieved from memory or from the information entered via some hardware, such as keyboard, scanner, lever dick, and mouse. CPU controlled using a set of instructions the computer software. Such software can be executed by the CPU to read from the storage media, such as hard disks, floppy disks, compact discs, or tape recorder. instruction is then stored in advance in physical memory (RAM), where each instruction is assigned a unique address called a memory address. Next, the CPU can access data in RAM to determine the address of the desired power.

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Parts of the computer devices that are harmful

Anti-glare screen

1. Monitor

     Computer monitors typically use a picture tube (CRT) which can cause the intensity of light emitted by the monitor high enough to be accepted by the human eye retina.Therefore, part of the computer should have anti-glare screen, in order to avoid eyedamage due to the radiation beam of light from the computer earlier

2. CPU (Central Processing Unit)

Part of the computer is not directly in contact with the hand (wet) because electricity isthere on the CPU can electrocute you.

3. Computer Cables

     part of computer equipment that should be avoided from the water because it can cause a short circuit. This short circuit can cause electrical short circuit that can cause fires.

4. Keyboard

Avoid spilling water on the keyboard because it can cause the keyboard hangs / not functioning as it should. Therefore, the keyboard consists of a set of tools that are electrically charged, the keyboard is exposed to water or wet materials can give rise toshort circuit. If it is being operated and can electrocute you.

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Computer's Components

     The basic components contained in a computer system, comprising hardware, software and brainware

1. Hardware

Hardware consists of several parts such as :
a. Input devices: mouse, keyboard

b. tool processes: CPU (Central Processing Unit) and storage media
c. The output device: monitor and printer

2. Software

     Software is a program containing instructions written in computer language that is understood by the computer hardware.
Software types are as follows:

A. Operating system software

operating system software will be deployed to :

1. Interpreter: translates commands understood by the application software so that hardware

2. Hardware configuration: recognize peripherals (computer support equipment)

3. file management: the management of file (data / program)

B. Application Software

Software applications, among others, used to process electronic data. Many softwareapplications offered in the market, but we can group software applications according totheir use are as follows:

1. Software for word processing
2. Software for processing the numbers / data table
3. Software for statistical data processing
4. Software for database processing
5. Software for engineering drawing
6. Software for image processing
7. Software programming language to create their own applications

3. Brainware

     Brainware is a term used to refer to people who work associated with the computercomprising:
a. User / operator: people who can operate a computer
b. Administrator: the person who set up / design of work systems, work orders,management of data to output.

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Charles Babbage, The inventor of computer

     Charles Babbage was one of the scientists in the world, which has a lot to work on human life, especially in the computer field. Calculating machines (Difference Engine No. 1) which was discovered by Charles Babbage (179-1871) is one of the most famousicon in the history of computers and is the first automatic calculator. Babbage also knownby the nickname the father of the computer. The Charles Babbage Foundation to use his name to honor his contributions to the world of computers.

Charles Babbage was born in what is now known as Southwark, London, December 26, 1791, son of Benjamin Babbage, a banker. The surplus in mathematics is veryprominent. Upon entering Trinity College at Cambridge in 1811, he found that mathematical ability is much better, even than his own tutor.

     At the age of 20 years Babbage worked as a mathematician, especially in the field of calculus functions. In 1816, he was elected as a member of the "Royal Society" (an organization of independent academic science and Great Britain, is still active today)and play an important role in the foundation "Astronomical Society" (Organization of Astronomy and Geophysics Great Britain, still exists today) in the year 1820. At this timebecame interested in Babbage's calculating machines, which continued until his death.

In 1821 Babbage invented the Difference Engine, a machine that can sort the tableMathematics while completing it in 1832, he conceived the idea of ​​a better machine,which will be able to solve not just one but many different types of arithmetic operations.This machine is called the Analytical Engine (1856), which is intended as a general manipulation symbol machines, as well as having some characteristics of modern computers. Among them is the use of punched cards, a memory unit to enter a numberand variety of the basic elements of the other computer.

     Years 1829 to 1839, he conceived the Lucasian Chair earned Of Mathematics (mathprofessor important degree the most prestigious in the world) from the University of Cambrdige. In addition to calculating machines, Babbage also provide various other contributions. Among British created the modern postal system, compiled the first tablesof reliable insurance, find a locomotive cowcatcher (a triangular structure in front of the train, which is able to clean the rails of the disorder) and several others. BesidesBabbage also contribute their ideas in economics and politics. Babage died at his home in London on October 18, 1871.

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Arrangement of computer equipment

     Setting a good position and is a surefire way to avoid discomfort and health problems.Here is an arrangement or device is working properly.

1.Workplace

Set the components of our work to fit the needs of the most important factor to get comfortable working conditions. Take a few minutes before you work. Consider and determine the best layout and position of your work device (computer monitor, mouse, keyboard, printer, etc.) that can be utilized effectively. This step will save time and effort, especially in completing the work. To make sure that the following things.

a. Arrange the most convenient position on the table for the CPU (Central Processing Unit), monitor, keyboard, mouse, printer, book stand, and other devices such as telephones, and so forth.

b. Set the table to consider how the device will be used. The most commonly used devices such as mouse, placed in the position of the most easily accessible.

c. adjust the lighting in an optimal workspace. The light is too strong resulting in the monitor's display is not sharp. Low light the potential to cause disruption in our eyes. Avoid lights that highlight directly to the monitor because it will bring up the reflection on the screen. Try to position parallel to the window, do not deal or their backs.

d. Books, reports, or other molds are needed in working with computers should be placed near the monitor. Can be under or beside

2. Chair

The chair is one Important component in the workplace. A good chair will be Able to Provide good posture and circulation and will help avoid discomfort. Choose a comfortable chair, adjustable, and has a back brace

3. Keyboard

The right chair for computer users

As an input device, the device is absolutely necessary and always we hold when we work with computers. Convenient to use try the following positions.

a. Position the keyboard so that your arms in a relaxed and comfortable position.

b. Use the keyboard that is designed to be set according to the size of the finger and hand positions

4. Mouse

Place the mouse close to the surface and at the same time with the keyboard so that we can reach and use without having to stretch out the hand to different positions. Consider using a scroll-point mouse, so the scrolling motion on the screen can be more easily done. Also use an optical mouse to obtain a more precise cursor movement. Jobs in graphic should use this type of mouse.

5. Monitor

The monitor screen is set in such a way as to reduce the reflection of light from lamps, windows or other light sources. If it is not possible to adjust the screen position, consider installing a filter in front of the monitor screen. For convenience, set the monitor so that our eyes are the same height as the top edge of the screen, about 5-6 cm below the top of the monitor casing. The monitor is too low causes neck pain and us shoulder. Adjust the position so that our distance and ranges from 50cm-60cm monitor. Monitors that are too close result in eye strain, fatigue Fast, and potential vision problems. Exact position of the monitor straight in front of us, not to force the heads turn to look at the screen. Then slightly tilt the monitor so the top of the monitor slightly to the rear. Adjust the brightness and contrast level monitor with comfortable, not too dim nor too bright and. When the light conditions in your room changed, adjust the monitor brightness and contrast again. Clean the monitor screen periodically. Dirty screen effect and look blurry reflections. If you are having trouble seeing the display screen with a distance of 50-60 cm, try enlarging the display or screen resolution. If a resolution of 1024x768 is too small, change it to 800x600. Also set the color and font size if necessary.

if you've read this you should also read about Using Computer With Correct Position and about Parts of the computer devices that are harmful

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