COMPUTER NOTES FORM ONE-TOPIC 2-THE COMPUTER
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COMPUTER NOTES FORM ONE-TOPIC 2-THE COMPUTER
Significance of computer
The ComputerDefine a computerA computer can be defined in several ways but the best definition of a computer should contain main terms like
- INPUT,
- PROCESS,
- STORAGE
- OUTPUT.
Definitions of acaomputer
The following are various definitions of the computer
A Computer is:
- An electronic machine that processes raw data to produce information
- Is an electronic device that receives or accept input[data] processes it and then produces output or information
- Is a machine programmed to accept data process it into useful information [output]
- Is an electronic devices that works under the control of stored program, automatically accepting and processing data to produce information.
- Is an electronic machine that accept data from an input device performs arithmetic and logical operation according to predefined programs and finally transfer the processed data to any output devices.
Input is the unprocessed data which enters the computer.Output is the processed data from computer.Storage the computer holds data internally during and after processing.Processing this is the process of converting input(data) into output (information).Summarizing the basic function of computer we have:
Characteristics of computer
- Speed: computer works in speed.
- Accuracy: computer never makes errors..Errors are made by human being who use the computer.
- Storage: computer has memory for keeping data.
- Versatility:a computer can perform job logically and step by step.
The need for the computer
Explain the need for the computerComputer has many applications in real life.
COMPUTERS IN EDUCATION
- Gathering information from internet.
- Developing science projects.
- Teaching projects and learning process.
COMPUTER IN HEALTH
- In health computer can be used for Diagnosing illness.
- Modifying parent health development.
- Assisting surgeons.
COMPUTERS AT HOME
- Writing letters.
- Listening music
- Playing games
- Watching movie
COMPUTERS IN LAW ENFORCEMENT
- Store information.
- Making documents and printing documents.
- DNA and finger printing.
COMPUTERS IN MUSIC INDUSTRY
- Composing music.
- Editing sound
- Editing videos
COMPUTERS IN TRANSPORTATION
- It can be used for traffic control
- It can be used in driving stimulator
- It can be used for reservation systems
- Computers are embedded in air craft to provide efficiency in flying
COMPUTERS IN GOVERNMENT
- It can be used for internal revenue service’s i.e. to provide reports for tax purposes.
- It can be used for planning, analysis, forecast, sampling, predictions etc.
- It can be used for weather forecasting.
- It can be used for law enforcement.
COMPUTERS IN MILITARY
- It can be used for planning and decision making.
- It can be used by planners to stimulate wars.
- It can be used to guide modern weapons such as missals and field artillery
COMPUTERS IN BANKING AND BUSINESS
- To allow banks clerks and customers to find out bank balance in an account.
- To help bank clerks to record money paid in and out.
- To check computer sensitive cheques.
- To do reservation system for air line travel by checking if there is free seat on a flight.
- To help retailers to check out stock at a super market.
- To allow people to use Automatic Teller Machine in cash withdrawal and transfer funds between accounts.
- To keep track of current prices of market stocks , bonds and currency.
- To create an effective way of producing document example reports, brochures, cards etc.
COMPUTERS IN INDUSTRY AND ENGINEERING
- To design drawing for products using computer aided design (CAD) programs example airplanes , bridges, buildings etc
- To manufacture products using computer aided manufacturing (CAM)
- To plan and control major projects.
- To stimulate or predict what will happen in real life situations from a model situation example turning on/off traffic lights
- To control some operations in automobiles example mixing of fuel and air entering the engine.
- A new technology called artificial intelligence can solve problems in areas like medicine ,law etc.