Your computing experience consists of interactions with the hardware and software. The material is a tangible computer equipment, such as the monitor, CPU, keyboard and mouse. The main body is a computer CPU. If the CPU is home to a number of essential components.Enlarge
1The central processing unit (CPU) is responsible for processing of most computer data, turning input output.As you can imagine, the speed and performance of the CPU is one of the biggest factors that determines how a computer works. A processor is a very small, thin silicon wafer which is enclosed in a ceramic chip, and then mounted on a printed circuit board.
processor speed is measured in gigahertz (GHz). Over this measure, the faster the processor can run. One hertz is one cycle per second; gigahertz is one billion cycles per second. CPU speed is not the only measure of its performance, though; different processors have technologies to increase the efficiency built into them that can increase the data rate in a number of ways.A fairer comparison between the different processors is the number of instructions per second they can perform.Enlarge
2Memory consists of computer chips that contain data.A type of memory, random access memory (RAM), forms the central pool of memory that uses a computer to function. The more RAM a computer has, the more applications it can have open at once without the computer's performance starts to get bogged down. More RAM can also make some applications work better in general.The memory capacity is measured in gigabytes (GB), which is a billion bytes. Most basic computers have at least 4 GB today, with high-end systems with 16 GB or more. As the CPU, memory consists of small, thin silicon wafers, locked ceramic chips and mounted on circuit boards. Memory cards hold circuits are called DIMMs, which means dual inline memory module.
3A software disk drive stores.When the computer is off, everything on the hard drive is still there, so you do not have to reload the software every time you turn on the computer. The operating system and applications loaded from the hard disk into memory, where they run.The hard disk capacity is measured in gigabytes (GB), such as memory. A typical hard drive could be 500 GB or even 1 terabyte (1000 GB) or more. Most hard drives sold today are the traditional mechanical using metal trays to store data with magnetic polarity, but a newer type called a hard drive in the solid state (SSHD), uses a type of memory, resulting in a fast, quiet, and reliable (but expensive) replacement of storage.Enlarge
4In addition to the components of the system unit, a computer may have one or more input devices.Devices include keyboards, mice, trackballs, touchpads and.Enlarge
5Each computer has a certain type of the display screen.Depending on the computer, the display can be integrated, or may be a separate device called a monitor with its own power cord, as shown. Some screens are touch screen, so you can use your finger on the screen to make a contribution to the computer.The display quality is measured in the resolution - that is, the number of pixels (individual points of color) that include the display to its highest resolution. A typical resolution for a notebook PC is 1920 x 1080, for example. The first number is the horizontal resolution and the second is the vertical resolution.The aspect ratio of a display is the ratio of its width to its height in pixels. Displays can be either standard (4: 3) or widescreen (16: 9). For example, a small device could have a maximum resolution of 800 x 600; if you simplify it to a fraction, it comes out to 4/3.
6Most desktop and notebook computers come with an optical drive, which is a player that will play CDs, DVDs, records and / or Blu-ray.Optical drives get their name from the way the data is written and read from disk. Laser light shines on the surface, and a sensor measures the amount of light is sent from a certain place.Some laptops are without DVD capabilities because you can download and install software or play videos and music in the cloud (that is, via the Internet), it is possible to agree very although without the ability to play DVDs. However, most desktop computers always come with a DVD player.
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Whatever computer you have, you probably want to use to connect to the Internet. That means you want it to have a network card in it.This capacity can be built into the computer, or it can be added to the computer with an expansion card or device that plugs into a port.Internet connectivity can be wired or wireless. A wired connection requires you to connect a computer cable to the device that provides your Internet connection (such as cable modem). This type of cable and the connection is known as Ethernet.A wireless link allows the computer to communicate with the connection device to the Internet via radio waves. The type of wireless connection used for Internet connectivity is called Wi-Fi or wireless Ethernet.