what is a computer ? 100-200 lines
Answers
Answer:Below is a picture of a computer with each of the main components. In the picture below, you can see the desktop computer, flat-panel display, speakers, keyboard, and mouse. We've also labeled each of the input devices and output devices.
Desktop computer
Tip
You can find further information about other types of computers and get a breakdown of the components that make up a desktop computer later in this page.
History of the computer
The first digital computer and what most people think of as a computer was called the ENIAC. It was built during World War II (1943-1946) and was designed to help automate the calculations being done by human computers. By doing these calculations on a computer, they could achieve results much faster and with fewer errors.
Early computers like the ENIAC used vacuum tubes and were large (sometimes room size) and only found in businesses, universities, or governments. Later, computers began utilizing transistors and smaller and cheaper parts that allowed the ordinary person to own a computer.
When was the first computer invented?
How are computers used today?
Today, computers make jobs that used to be complicated much simpler. For example, you can write a letter in a word processor, edit it anytime, spell check, print copies, and send it to someone across the world in seconds. All these activities would have taken someone days, if not months, to do before. Also, these examples are a small fraction of what computers can do.
How are computers used?
How does a computer work?
What are the advantages of using a computer?
What components make up a desktop computer?
Today's desktop computers have some or all of the below components (hardware) and peripherals. As technology advances, older technologies, such as a floppy disk drive and Zip drive (both shown below), are no longer required or included.
Example of front of computer case
Bay
Case or Chassis
Case Fan
Optical drive: Blu-ray, CD-ROM, CD-R, CD-RW, or DVD.
CPU (processor)
Floppy disk drive
Hard drive
Keyboard
RAM (random access memory)
Microphone
Monitor, LCD, or another display device.
Motherboard
Mouse
Network card
Power Supply
Printer
Sound card
Speakers
Video card
Wearable
What parts are needed for a computer to work?
A computer does not require all the components mentioned above. However, a computer cannot function without having at the very minimum the parts listed below.
Processor - Component that executes instructions from the software and hardware.
Memory - Temporary primary storage for data traveling between the storage and CPU.
Motherboard (with onboard video) - Component that connects all components.
Storage device (e.g., hard drive) - Slower secondary storage that permanently stores data.
However, if you had a computer with only the minimum parts above, you would be unable to communicate with it until you connected at least one input device (e.g., keyboard). Also, for you to see what is happening, you would need at least one output device (e.g., monitor).
Tip
Once a computer is set up, running, and connected to a network, you could disconnect the keyboard and monitor and remotely connect. In fact, this is how most servers and computers in data centers are used.
What does the inside of a computer look like?
Computer connections
All computers have different types of connections. An example of the back of a personal computer and a brief description of each connection is found on our computer connections page.
How to set up a new computer.
Answer:
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