COMPUTER
POTS
These
are the holes or socket on the system unit in which we can plug a hardware
device. These pots are as follows:
a)
USB port; this ports is design to harmonize
hardware connection. That is most hardwares today are design with the USB plug
so as to ease connection on any computer system unit.
b)
Network pot: Use to plug network connection
cable
c)
Serial pot: These ports are usually two on a
computer. One for the serial mouse and the other for the serial keyboard. The
mouse port is usually green in colour while that for the keyboard is usually
purple in colour and position down with respect to the mouse port.
d)
Parallel: This pot was initially designed for
printers, today it is mostly use for the laser jet printer.
e)
Audio pot: They are three of them for three
different purposes.
i)
Audio input pot to receive audio signal from an
external source.
ii)
Audio output pot to send out audio signal to an
external device.
iii)
Microphone pot use to adapt microphone to a
computer.
f)
VGA port: This port is use to the VGA cable
which transmits video and graphics signal from the system unit to the monitor.
The VGA cable has a two sided same plug, one for the SU and the other for
the monitor.
g)
Power port: This where the power cord is being
plugged. Power cord is the cable that supplies the computer system with
electrical energy. We have two power ports, one for the monitor and one for the
SU.
BASIC
CONNECTIONS
The
following cables must be connected before switching on the computer.
Keyboard (serial or USB )
Mouse (serial or USB)
VGA (from SU to monitor)
2 power cords (one for the SU and one for the
monitor.
BOOTING A
COMPUTER
Booting
refers to the process from when the computer power button is press ON to when
the computer finally reaches the desktop stage
There
exist two kind of booting:
a)
Cold booting. This when a computer is turn on
after being off for sometime.
b)
Warm booting. This refers to the process of
restarting the computer
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