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Hardware and Software (Internal components (Memories (ROM (The components…
Hardware and Software
Internal components
C.P.U
It is the most important part of a computer. It is the machine "Brain". It intercepts instruction from program and process data as well as managing and controlling the entire system. The C.P.U or microprocesor, is a chip.(chips consists of many different electronic components)
Memories
ROM
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The components of this type of memory can only be read. It store the data that enables the computer to operate when we turn it on and also let the C.P.U communicate with other components.It is not crased even when we turn off the computer.
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RAM
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Its contents can be change it is read -Write memory and is creased when we turn off the computer RAM temporary stores the programes and data that are being used by their computer.
Storage Devices
Optical
CD Rom, DVD, and Blu Ray Disc (BD) are compact discs that are readed by laser beam. They have a large storage capacity: around 700 MB in case of CD Rom , between 4,7 GB and 17 GB for a DVD and 25 GB in case of the BD
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Solid states devices flash memories( used in pen drives memory shaks and memory cards) Its very compact and has a large storage capacity of up to several TB. It can be acess very quickly.
Peripheral devices
Output
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-Screen or Monitors: it displays images or texts it has button to control the brightness, the contrast...
-Printer : This prints information in different formats normal paper, photographic paper,transparencies. There are also a 3D printer that use plastic.
-Others: Speakers, Projector and headphones.
Input / output
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This make it posible to enter information into or to get information out of a computer. Tablets, Smartphones are proper computer that have a microprocessor, memory and storage devices. They have input devices ( For exaple : a screen, Keyboard, a camara and sensors.) and output devices( a screen) as well a wire. Less corrector for sending data to a computer or other devices.
Input
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-Keyboard: Enters data ( characters, letters and numbers) and use the computer to perform a number of actions by making the pointer or course ( usually an arrow) and pressing a button.
-Mouse: Allows us to perform a number of actions by making the pointer or course ( usually an arrow) and pressing a button.
-Others: Microphone, Webcam, Scanner, Bar code reader, Game controller and Dual shock
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Software
It`s the set of progames or instructions that starts up the computer and process data so the that we can use it. Free software or open source can be used modified and redistribute freely.
Hardware
Physical components of the computer such us the electrical circuits inside the machine, the writing and the monitor.
Operative system
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Allows us to use the different peripheral devices.The OS is localed from the hard drive and store in RAM memory where it remains until the computer is turned off. The most popular Os for computer are Windows, Linux and Mac.
