Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which supports application software that performs the operator's desired functions. Operating systems usually communicate with devices through hardware buses by using software device drivers.
Motherboard
The motherboard is the main component inside the case. It is a large rectangular board with integrated circuitry that connects the other parts of the computer including the CPU, the RAM, the disk drives (CD, DVD, hard disk, or any others) as well as any peripherals connected via the ports or the expansion slots.
Components directly attached to the motherboard include:
Power supply
A power supply unit (PSU) converts alternating current (AC) electric power to low voltage DC power for the internal components of the computer. Some power supplies have a switch to change between 230 V and 115 V. Other models have automatic sensors that switch input voltage automatically, or are able to accept any voltage between those limits. Power supply units used in computers are nearly always switch mode power supplies (SMPS). The SMPS provides regulated direct current power at the several voltages required by the motherboard and accessories such as disk drives and cooling fans.
Removable media devices
Secondary storage
Hardware that keeps data inside the computer for later use and remains persistent even when the computer has no power.
Sound card
Enables the computer to output sound to audio devices, as well as accept input from a microphone. Most modern computers have sound cards built-in to the motherboard, though it is common for a user to install a separate sound card as an upgrade. Most sound cards, either built-in or added, have surround sound capabilities.
Input and output peripherals
Input and output devices are typically housed externally to the main computer chassis. The following are either standard or very common to many computer systems.
Input
Output
BUS
system unit is used to control the parts of the computer system
System Unit
system unit
A computer circuit board is used to connect the electronic components and circuits inside of a computer. Computer circuit boards are composed of laminates, copper clad laminates, and copper foil.
Input devices of a computer are all the components which are used to feed data into the system, such as a mouse, keypad, joystick, etc.
An information has five main components. These are the hardware or physical components, the software or the programs that allow the processing of data, the data which is the information that is used and processed by the system, the users of the system and the networks that connect the system to other information systems.
Uses Of System Unit: The system unit is used to control the parts of the computer system. It also holds the different components of the computer together. The system unit stores information that controls the overall activities of the computer.
computer is a electronic machine which is used to process the data and get output.More Information:A computer system is a networked aggregation of components (a machine) which is used to input, store, and process data. It must have a processing unit, and devices for data input, output and storage.
The Multi-serial IO card is used to connect modems and other components to the main computer. Hylafax is a commonly used Multi-serial IO card.
System Bus, Address Bus & Control Signals.
Firmware, Operating System, and Utilities.
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