 | Central Processing Unit (CPU)
A
central processing unit (CPU) is the electronic circuitry within a
computer that carries out the instructions of a computer program by
performing the basic arithmetic, logical, control and input/output
(I/O) operations specified by the instructions. The term has been used
in the computer industry at least since the early 1960s.[1]
Traditionally, the term "CPU" refers to a processor, more specifically
to its processing unit and control unit (CU), distinguishing these core
elements of a computer from external components such as main memory and
I/O circuitry. |
 | Motherboard
A
motherboard (sometimes alternatively known as the mainboard, system
board, planar board or logic board,[1] or colloquially, a mobo) is the
main printed circuit board (PCB) found in computers and other
expandable systems. It holds and allows communication between many of
the crucial electronic components of a system, such as the central
processing unit (CPU) and memory, and provides connectors for other
peripherals. Unlike a backplane, a motherboard contains significant
sub-systems such as the chipset, processor and other components. |
 | RAM
Random-access
memory (RAM) is a form of computer data storage. A random-access memory
device allows data items to be accessed (read or written) in almost the
same amount of time irrespective of the physical location of data
inside the memory. In contrast, with other direct-access data storage
media such as hard disks, CD-RWs, DVD-RWs and the older drum memory,
the time required to read and write data items varies significantly
depending on their physical locations on the recording medium, due to
mechanical limitations such as media rotation speeds and arm movement. |
 | Adapter
The
expansion card (also expansion board, adapter card or accessory card)
in computing is a printed circuit board that can be inserted into an
electrical connector, or expansion slot on a computer motherboard,
backplane or riser card to add functionality to a computer system via
the expansion bus. |
