Be Smart & Healthy (Lesson 15) (I Can Do All Things Character Building Collection)
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This system is considered information processing. Data can also come in other forms including figures, experiments, and surveys. Most everything that is entered into a computer becomes data, which is why this term is so vital to understanding computers and how they operate. When most people think of information, the first source that comes to mind is Google. Google allows you to access a lot of information in a short amount of time.
What most do not know is that is exactly what a computer does behind the scenes every time you are entering data into a computer, most of the time without even considering it to be "data. Many online sources provide endless amounts of information. Without information, people will not have reliable sources for school and their career.
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Work can be made much easier with information, including jobs which need to calculate employee's total hours worked, or any "total data" that needs to be found or calculated. Data and information are very valuable, and is most certainly the backbone of a computer. These two components may help your computer to be user-friendly by working behind what you are typing to make data useful and organized. The Industrial Age: First general mechanical computer was proposed and partially built by the English inventor Charles Babbage in It was programmed using punch cards, and also featured integrated memory.
Historians consider it to be the first design concept of a general-purpose computer. Unfortunately, because of funding issues the Analytical Engine was never built while Babbage was alive. It wasn't until that Henry Babbage, Charles Babbage's youngest son, was able to complete a portion of this machine which was able to perform basic calculations. The Analytical Engine was to be a general-purpose, fully program-controlled, automatic mechanical digital computer. It was designed to consist of four components: the mill, the store, the reader, and the printer- which are all essential components of every computer today.
Digital computing was invented by Claude Shannon in late 's. What he envisioned was a computer built from electrical circuits instead of motors. Today, it is difficult for any student to imagine life without a computer. However, computers have only been around since the mid 's. The computer industry went from making computers that took up an entire classroom to currently being able to fit into a student's backpack.
Also, computers used to be much more expensive and required a greater amount of energy than today's computers. Finally, in the s, people began placing these foreign objects into their home. During this time, people had to really study and be patient with this handy device. Computers today are much smaller, lighter, require less energy, and cheaper. However, in today's generation, computers are second nature to most people, and one could not imagine life without them. Computers in our generation seem to be integrated in our every day life to assist in multiple tasks related to our many needs.
So much so, it is difficult to picture our world without them. However, with great success comes great patience.
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In the first computer model for example, the machine required certain inputs, referred to as punch cards, and physical work to reprogram the computer. The computer itself was nowhere near as helpful, simple, nor convenient as it is today. The first generation computers were built with thousands of vacuum tubes, required physical effort to re-wire the computer, and could only solve one problem at a time. The second generation of computers introduced transistors, which replaced the vacuum tubes.
Transistors simply acted as a light switch, allowing the electronic circuits to either open or close. Both first generation computers, and second generation computers continued to use punch cards for their input.
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Soon after, , the third generation used a system of integrated circuits, which incorporated many transistors and electronic circuits on a single silicon chip. The third generation of computers started the innovative trend of smaller and more reliable computers.
Finally, the development of our current computers, used by practically everyone in society, began. The fourth generation of computers began in , when it was possible to place far more transistors onto a single chip- the microprocessor.
This discovery led within the decade to the creation of IBM's personal computers, as well as the popular Apple Macintosh. Consumers currently use inputs, outputs, and storage that consist of: keyboards, mice, monitors, printers, speakers, hard drives, flash memory media, and optical disks. Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today.
The use of parallel processing and superconductors is helping to make artificial intelligence a reality.
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Quantum computation and molecular and nanotechnology will radically change the face of computers in years to come. The goal of fifth-generation computing is to develop devices that respond to natural language input and are capable of learning and self-organization.
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Although the movement from vacuum tubes to microprocessors seemed to take a while, compared to the beginning of civilization thousands of years ago, this advancement happened very quickly. However, it also opens the human mind to realize that innovation takes trial, error, and patience. The term hardware refers to the components used to build a computer.
Breaking down the components into categories, you will find four main groups:. Although these are the four main categories, there are three more components to consider that do not fit into those main four:.
A computer case is used to put the essential components of a computer in. This provides an enclosed space and easier organization for the components to go.
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A power supply unit PSU is used to power all components inside the case. What this means is that each component needs a certain amount of volts to work and the power supply will regulate the volts accordingly. An expansion card is used to enhance certain attributes of the system. For example, a sound card can enhance sound by giving you surround sound capability. Another example is a video card, this will enhance the graphics of your system. This category refers to the components a computer uses that receive data and send information.
Input devices do the receiving and the output devices do the sending. Some examples of input devices are a keyboard, mouse, and a gaming controller. Examples of output devices are a printer, monitor, and speakers. The memory within a computer can be broken down into two categories: short term memory and long term memory. RAM can be tapped into immediately by programs on a computer allowing it to compute faster, but if the user needs to save information for later use, using the HDD or CDD is required.
The central processing unit CPU is used to calculate the commands sent to it by the programs used on the system.
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It performs all the arithmetic and logical operations. This comes in the form of a small chip that is connected into the computer motherboard. The motherboard is where all other devices are connected so they can speak with each other. Communications hardware is important when it comes to letting computer users access information from the Internet, put information onto the Internet, or interact with other computer users on a network.
This type of hardware includes modems, routers, and network adapters. Modems and routers are the devices that connect computer users to the Internet: Signals go from the Internet service provider to the modem, which then converts them into an appropriate form and sends them through the router to the computer or, when the computer user is sending information to the Internet, signals are sent via the router to the modem, which converts them and sends them to the Internet service provider.
Network adapters are what allow computers to communicate on a small, local network. Sometimes, however, a computer may have a network adapter that consists entirely of software, called a virtual adapter. If this is in use, such as on a virtual private network VPN , then no hardware component is needed. Computer software is used to communicate with the computer processor to direct certain operations to be performed.