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Seven Major Parts of a Computer
Transcript of Seven Major Parts of a Computer
Even though there are many add ons that make up a computer , here are the simple and basic components that a computer must have.
a device attached to a host computer, but not part of it, and is more or less dependent on the host. It expands the host's capabilities, but does not form part of the core computer architecture.
The motherboard is like the engine of an automobile. It provides support for the internal components and also passes information between the computer parts.
Most of the mathematical manipulations that make computers operate are done by the CPU. Other components like high performance graphic cards, may also have their own processors, but their results still have to be passed through the CPU.
The monitor is a display peripheral that allows the user to see a computer's visual output. Older desktop computers used large CRT (Cathode Ray Tube) monitors, which function much like traditional television sets. Modern computers, however, have almost entirely transitioned to LCD flat panels, which are much thinner and use much less energy.
Video hardware is often integrated into the motherboard, however all modern motherboards provide expansion ports to which a video card can be attached.
The mouse is an input peripheral that allows a user to move a cursor around the computer screen in order to interact with virtual buttons or select text.
Random Access Memory
Central Processing Unit
The component in the computer that stores information the computer needs while it is operating. It is Random Access because the computer can get the data in any order, not necessarily the order in which it is stored. Generally speaking, the more RAM the better. All the data contained in RAM is lost when the computer is turned off
Long term memory
Open Hard Drive
Zoomed in view of open hard drive
Hard drive enclosure
Since ram loses it’s data when the computer is shut down , there has to be a place to store the data permanently. This is where the hard disk comes in. The hard disk drive or “hard drive” is an encased unit of disks that look like cds, that stores data and provides relatively quick access to large amounts of data as requested by computer programs.
Examples are computer printers, image scanners, tape drives, microphones, loudspeakers, webcams, and digital cameras.
There are other input devices
There are other input devices
The keyboard is a peripheral device that allows for text input by the user. The most common English keyboard layout is known as "QWERTY," named for the first five letters in the first alphabetic row. Many keyboards also have additional buttons that can expedite common tasks, such as opening an Internet browser or playing/pausing music.
A power supply unit (PSU) supplies direct current (DC) power to the other components in a computer. It converts general-purpose alternating current (AC) electric power from the mains to low-voltage DC power for the internal components of the computer.
In computing, an optical disc drive or CD drive is a disk drive that uses laser light as part of the process of reading or writing data to or from optical discs.
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