What Does A Computer Equipment Repair Make A Year
Estimator
Updated: 02/07/2022 by Computer Promise
A computer is a programmable device that stores, retrieves, and processes data. The term "computer" was originally given to humans (homo computers) who performed numerical calculations using mechanical calculators, such as the abacus and slide rule. The term was later given to mechanical devices equally they began replacing human computers. Today's computers are electronic devices that have data (input), procedure that data, produce output, and store (storage) the results (IPOS).
Computer overview
Beneath is a film of a computer with each of the master components. You can run across the desktop computer, flat-panel display, speakers, keyboard, and mouse in the picture below. We've also labeled each of the input devices and output devices.
Tip
You tin can find further information well-nigh other types of computers and become a breakup of the components that brand upwardly a desktop computer later on on this folio.
History of the computer
The outset digital calculator and what nigh people retrieve of as a computer was called the ENIAC. It was congenital during Globe War Two (1943-1946) and was designed to assistance automate the calculations being done past human computers. Past doing these calculations on a calculator, they could attain 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 immune the ordinary person to ain a estimator.
How are computers used today?
Today, computers do jobs that used to be complicated much simpler. For example, you can write a letter in a word processor, edit it anytime, spell bank check, print copies, and send it to someone beyond the earth in seconds. All these activities would take taken someone days, if not months, to do before. Besides, these examples are a small fraction of what computers tin practise.
What components make up a desktop computer?
Today's desktop computers have some or all the components (hardware) and peripherals below. As technology advances, older technologies, such as a floppy deejay drive and Naught drive (shown beneath), are no longer required or included.
- Bay
- Case or Chassis
- Case Fan
- Optical drive: Blu-ray, CD-ROM, CD-R, CD-RW, or DVD.
- CPU (processor)
- Floppy disk drive
- Hard bulldoze
- Keyboard
- RAM (random access retentivity)
- 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 reckoner to piece of work?
A computer does not require all the components mentioned above. However, a figurer cannot function without having at the very minimum the parts listed below.
- Processor - Component that executes instructions from the software and hardware.
- Retentiveness - Temporary master storage for data traveling betwixt the storage and CPU.
- Motherboard (with onboard video) - Component that connects all components.
- Storage device (e.k., hard drive) - Slower secondary storage that permanently stores information.
However, if you had a estimator with simply the minimum parts above, you would exist unable to communicate with information technology until you connected at least ane input device (eastward.g., keyboard). Also, you would demand at least 1 output device (e.yard., monitor) for you lot to encounter what is happening.
Tip
Once a computer is gear up, running, and connected to a network, you could disconnect the keyboard and monitor and remotely connect. Most servers and computers in data centers are used and controlled remotely.
Computer connections
All computers have dissimilar types of connections. An example of the back of a personal computer and cursory descriptions of each connection is constitute on our computer connections page.
Types of computers
Computers can exist classified as 1 of 3 types of computers: a general-purpose figurer, special-purpose computer, or specialized computer.
A full general-purpose computer is what nigh people think of when thinking nearly a reckoner and is what this page covers.
A special-purpose calculator is embedded in about all electronic devices and is the most widely-used computer. This calculator is designed for a specific task and is found in ATMs, cars, microwaves, TVs, the VCR, and other dwelling house electronics. Come across our special-purpose estimator page for further information and examples.
A specialized computer is like a general-purpose calculator simply is designed just to perform ane or a few different tasks. See our specialized calculator for further data and examples of these computers.
When talking virtually a figurer or a "PC," you're usually referring to a desktop computer found in a domicile or office. However, the lines of what makes these computers are blurring. Below are different examples of what's considered a estimator today.
The picture in a higher place shows several types of computers and computing devices and is an example of their differences. Below is a consummate listing of general-purpose computers of by and present.
Note
Some computers could use many different classifications. For example, a desktop reckoner could also be classified as a gaming computer and a personal calculator.
- Custom-congenital PC
- Desktop computer
- Diskless workstation and Sparse customer
- Gaming computer
- Hybrid computer
- Laptop, portable, notebook computer
- Mainframe
- Microcomputer
- Nanocomputer
- Netbook
- PDA
- Personal computer
- Prebuilt computer
- Quantum computer
- Server
- Smartphone
- Stick computer
- Supercomputer
- Tablet
Who makes computers?
Today, there are ii types of computers: the PC (IBM compatible) and Apple tree Mac. Many companies make and build PCs, and if you lot get all the necessary parts for a estimator, y'all can even build a custom PC. However, with Apple computers, only Apple designs and makes these computers. See our computer companies page for a listing of companies (OEMs) that make and build computers.
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Source: https://www.computerhope.com/jargon/c/computer.htm
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