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Introduction To The
Personal Computer
- Personal Computer Systems
- Cases and Power Suplies
- The computer case contains the framework to support the
internal components of a computer while providing an
enclosure for added protection
- The power supply must provide enough power to the components that
are currently installed. the power supply converts Alternative Current
(AC) power into Direct Current (DC)
- The power supply must provide enough power to the components that
are currently installed. the power supply converts Alternative Current
(AC) power into Direct Current (DC)
- The computer case contains the framework to support the
internal components of a computer while providing an
enclosure for added protection
- Cases and Power Suplies
- Ohm's law
- Four basic units of electricity
- Voltage (V)
- Voltage is a measure of work required to move a
chart to one location to another. Voltage is measure in
Volts (v)
- Voltage is a measure of work required to move a
chart to one location to another. Voltage is measure in
Volts (v)
- Current (I)
- Current is a measure of the amount of electrons moving
through a circuit per second. Current is measure in Amperes
or Amps (A)
- Current is a measure of the amount of electrons moving
through a circuit per second. Current is measure in Amperes
or Amps (A)
- Power (P)
- Power is a measure of the work required to move electrons through a
circuit (voltage), multiplied by the number of electrons going through
that circuit per second (current). Power is measure in Watts (W).
- Power is a measure of the work required to move electrons through a
circuit (voltage), multiplied by the number of electrons going through
that circuit per second (current). Power is measure in Watts (W).
- Resistance (R)
- Resistance is the opposition to the flow of current in a
circuit. Resistance is measure in Ohms
- Resistance is the opposition to the flow of current in a
circuit. Resistance is measure in Ohms
- Voltage (V)
- A basic equation, known as the Ohm's law, expresses how three of
the terms relate to each other. It states that voltage is equal to the
current multiply by the resistance: V=CR
- Four basic units of electricity
- Internal PC Components
- Motherboards
- The Motherboard is the main printed circuit board and contains the buses, or electrical pathways,found in a
computer. The Motherboard accommodates the central processing unit (CPU), Random access memory (RAM),
Expansion Slots, Heat Sink, Fan Assembly and the Basic Input/Output System (BIOS) chip
- CPUs
- Cooling System
- ROM
- RAM
- Memory Medules
- Memory Medules
- RAM
- ROM
- Cooling System
- The Motherboard is the main printed circuit board and contains the buses, or electrical pathways,found in a
computer. The Motherboard accommodates the central processing unit (CPU), Random access memory (RAM),
Expansion Slots, Heat Sink, Fan Assembly and the Basic Input/Output System (BIOS) chip
- Motherboards
- External Ports and Cables
- Video ports and cables
- A video port connects a monitor to a computer using a cable. Video
ports and monitor cables transfer analog signals. digital signals, or both
- Other ports and Cables
- Input/Out (I/O) ports on a computer connects peripherals devices
such as Printers,Scanners and portable devices the following ports
and cables are commonly used: Serial, USB, FireWire, Parallel,
SCSI, Network, PS/2 and Audio
- Input/Out (I/O) ports on a computer connects peripherals devices
such as Printers,Scanners and portable devices the following ports
and cables are commonly used: Serial, USB, FireWire, Parallel,
SCSI, Network, PS/2 and Audio
- A video port connects a monitor to a computer using a cable. Video
ports and monitor cables transfer analog signals. digital signals, or both
- Video ports and cables
- Input and output devices
- Input devices
- An input device enters data or instructions into a computer.
Here are some examples of Input devices: Mouse and
Keyboard, Joystick, Scanner
- An input device enters data or instructions into a computer.
Here are some examples of Input devices: Mouse and
Keyboard, Joystick, Scanner
- Output devices
- An out put device presents information to the user from a computer. Here are
some examples of Output devices: Monitors and Projectors, Printers and Fax
Machines
- An out put device presents information to the user from a computer. Here are
some examples of Output devices: Monitors and Projectors, Printers and Fax
Machines
- Input devices
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