Click on each object for further information
• A motherboard, also known as a mainboard, logic
board, or system board, and sometimes abbreviated as
mobo, is the central or primary circuit board making up a
complex electronic system, such as a computer.
• A typical computer is built with the microprocessor, main
memory, and other basic components on the
motherboard. Other components of the computer such
as external storage, control circuits for video display and
sound, and peripheral devices are typically attached to
the motherboard via ribbon cables, other cables, and
• A mouse is a handheld pointing device for
computers, being a small object fitted with one
or more buttons and shaped to sit naturally
under the hand. The underside of the mouse
houses a device that detects the mouse's motion
relative to the flat surface on which it moves.
The mouse's 2D motion is typically translated
into the motion of a pointer on the display.
• It is called a mouse primarily because the cord
on early models resembled the rodent's tail, and
also because the motion of the pointer on the
screen can be mouse-like.
• A computer keyboard is a peripheral modeled after the typewriter
keyboard. Keyboards are designed for the input of text and
characters, and also to control the operation of the computer.
Physically, computer keyboards are an arrangement of rectangular
or near-rectangular buttons, or "keys". Keyboards typically have
characters engraved or printed on the keys; in most cases, each
press of a key corresponds to a single written symbol. However, to
produce some symbols requires pressing and holding several keys
simultaneously, or in sequence; other keys do not produce any
symbol, but instead affect the operation of the computer, or the
keyboard itself. See input method editor.
• A 102-key PC US English QWERTY keyboard layout
• Roughly 50% of all keyboard keys produce letters, numbers or signs
(characters). Other keys can produce actions when pressed, and
other actions are available by simultaneously pressing more than
one action key.
• Computer speakers, or multimedia speakers, are
external speakers and are usually equipped with a male-
end phone plug for computer sound cards; however,
there are some that have female RCA (phono) plug
ports, and some people link computer sound cards to
nearby stereo systems. Computer speakers are usually
a simplified stereo system without a radio or other media
sources built in.
• Typically, the simplest computer speakers come with
computers. There are advanced forms of computer
speakers that have graphic equalization features (bass,
treble, etc.) for dynamic audio flexibility.
• A drive is a peripheral device attached to a computer to
access the information stored on a mass storage
medium. In some types of drive, the storage medium is
permanently sealed inside the device. In others, the
medium can be replaced with varying levels of difficulty.
Also, some drives with permanently attached media are
designed to be portable as a whole.
• Mass storage devices are characterized by:
• Transfer speed
• Seek time
Floppy Drive and Disk
A floppy disk is a data storage device that
is composed of a ring of thin, flexible (i.e.
"floppy") magnetic storage medium encased
in a square or rectangular plastic wallet.
Floppy disks are read and written by a
floppy disk drive or FDD, the latter
initialism not to be confused with "fixed disk
drive", which is an old IBM term for a hard