Lanner electronics TEM-370B Series, Руководство пользователя

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Mouse –
The keyboard is a barrier to learn how to use a computer. Xerox Corporation
first developed the concept of a pointing device, something a computer user could move
with his or her hand, causing a corresponding move on screen. Because of its size and
tail like cable, the device was named for the mouse. Apple Computer made the mouse a
standard feature of its Macintosh computers, and with the popularity of Windows, a mouse
is becoming standard equipment on all PCs, as well. “
Trackballs
” have survived more
awkward methods of navigating with the keyboard. “
Digitizing tablets
” are popular with
architects and engineers who must translate precise movements of a pen into lines on the
screen. “ Touch screens “, on which you press either your finger and a special light pen
to control the software, are too tiring to use for any length of time.
MMX
Ô
–
CPU’s with MMX
Ô
technology are optimized to run multimedia applications, and
therefore, offer faster multimedia playback than standard CPUs. However, when
manufacturers introduce any new hardware technology the software makers need to catch
up. At this time of compilation most applications cannot yet take advantage of MMX
Ô
capabilities.
Parallel port –
Parallel ports (labeled
LPT1
,
LPT2
, and so on) are usually for plugging in
printers. It is also often called a
Centronics port
– has been almost synonymous with
printer port
. Although a serial port can also be used to send data from a PC to some
models of printers, the parallel port is faster. A serial port sends data one bit at a time
over a single one-way wire; a parallel port can send several bits of data across eight
parallel wires simultaneously. Take note that a serial connection sends a single bit, a
parallel port send an entire byte.
PCI Bus (Peripheral Component Interconnect) – It is a connection slot in a motherboard
that supports 32-bit bus transfer rates. The now standard PCI Local Bus
carries data along at least 32 lines, that is, at least 32 bits at a time. Local bus computer
designs add special buses so the CPU can communicate directly with key components like
the monitor, resulting in much better performance. You should look for PCI local bus
capabilities in any system you buy, especially PCI local bus video (which helps the monitor
display more quickly).
POST (Power-On Self-Test) –
is the first thing your PC does when you turn it on, and it’s
your first warning of trouble with any of the components. When the POST detects an
error from the display, memory, keyboard, or other basic components, it produces a
warning error in the form of a message on your display and — in case your display is part
of the problem — in the form of a series of beeps.
RAM (Random Access Memory) –
consists of a bank of chips that act as “ working
memory ”, holding program instructions and data only while your computer is turned on.