System Unit

Flash memory

       Flash Memory is a long-lived, non-volatile (in the case of power outages can maintain the stored data) of memory, data deletion is not a single byte as a unit but as a fixed block as a unit, 256KB block size is generally to 20MB. Flash memory is a variant of e-erasable EEPROM, EEPROM and flash memory is different is that it can be removed at the byte level rather than the entire chip and rewrite the flash, so flash memory to update faster than EEPROM. Because of its power can still save the data when the flash is often used to save the settings information, such as in the computer's BIOS, PDA, digital cameras save information. 

Graphic cards

        A graphics processing unit or GPU (also occasionally called visual processing unit or VPU) is a specialized processor that offloads 3D graphics rendering from the microprocessor. It is used in embedded systems, mobile phones, personal computers, workstations, and game consoles.

Sound cards

       A sound card (also known as an audio card) is a Computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education, and entertainment (games). Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability.

Network interface care (NIC) 

          A network interface card (NIC) is a computer circuit board or card that is installed in a computer so that it can be connected to a network. Personal computers and workstations on a local area network (LAN) typically contain a network interface card specifically designed for the LAN transmission technology, such as Ethemet or token ring. Network interface cards provide a dedicated, full-time connection to a network. Most home and portable computers connect to the Internet through as-needed dial-up connection. The modem provides the connection interface to the Internet service provider.

Plug & Play 

          In the world of computing, plug and play is a term used to describe the characteristic of a universal serial bus, or device specification, which facilitates the discovery of a hardware component in a system, without the need for physical device configuration, or user intervention in resolving resource conflicts.

          Plug and play refers to both the boot-time assignment of device resources, and to hot plug systems such as USB and Fire wire^.

Bus line

          In computer architecture, a bus is a subsystem that transfers data between computer components inside a computer or between computers.

          Early computer buses were literally parallel electrical buses with multiple connections, but the term is now used for any physical arrangement that provides the same logical functionality as a parallel electrical bus. Modern computer buses can use both parallel and bit-serial connections, and can be wired in either a multidrug (electrical parallel) or daisy chain topology, or connected by switched hubs, as in the case of USB.

HDMI

          HDMI, High Definition Multimedia Interface is an all-digital video and audio transmission   interface, you can send uncompressed audio signals and video signals. HDMI can be used for set-top boxes, DVD players, personal computers, video games, integrated amplifier, digital audio and TV. HDMI can transmit audio and video signals, audio and video signals using the same cable, greatly simplifying system installation.

 

Cache memory

          Main memory size than the small but fast memory used to receive instructions from the main to keep a copy of - is likely needed for the processor in the next step - a dedicated buffer.

          Cache (Cache) its original meaning refers to the access speed than the average random access memory (RAM) a faster RAM, it generally did not use the system main memory DRAM technology, while expensive, but Faster SRAM technology, but also the name of the cache.