Chapter 6. The System Unit
The System Unit is the most important part of a Pc. It may be called the brain behind every action of a PC, since it controls and executes all the operations performed by the Pc. The keyboard, monitor, mouse, printer, etc. are all linked to the system unit through cables which are plugged into the back of the System Unit. In this section, I will discuss the vital components of the system unit so as to enable you understand the working process of the System. Some examples about The system units:
• Power switch: The power on/off switch is used to turn on or off the power to the PC.
• Reset button: This button helps you restart your computer without disconnecting the power supply.
• Lights: The front panel 'of the system unit may display a variety of colored indicator lights. These lights are used to indicate whether the hard disk, the floppy disk or the CO¬RaM is being read or written.
• Roppy disk drive: The floppy disk drive is used to read the information stored in floppy disks (also called a diskette). The System Unit has a slit in which the floppy disk can be inserted. Floppy disk drive is a component that enables us spin the disk, and a recording/reading device that moves across the disk to read or write data.
• CD-ROM Drive: CD-ROM drive is a device that reads the information stored on CD. A CD-ROM is an abbreviated term for Compact Disk-Read Dn/y Memory.
A system unit includes the following parts:
CAREERS IN IT :
Computer technicians - repair and install computer components and systems. They may work on everything from personal computers and mainframe servers to printers. Some computer technicians are responsible for setting up and maintaining computer networks. Computer technicians can expect an hourly wage $13,50 to $22,50. Opportunities for advancement typically come in the form of work on more advanced computer systems.
A LOOK TO THE FUTURE : As you walk out the door, don't forget your computer...
Wouldn't it be nice if you could conveniently access internet wirelessly at any time during the day? What if you could send and receive e-mail while jogging without touching a screen, or send a friend live video of what you are looking at? Of course, many people currently use wireless phone technology when they are away from their home or office. What if these users could accomplish these tasks with an even smaller, more portable, and less intrusive system?
Nowadays as technology goes far away from an imagination,
its units get more and more complicated, meaning that their shapes getting so
tiny that it is size of tip of our finger.
• Power switch: The power on/off switch is used to turn on or off the power to the PC.
• Reset button: This button helps you restart your computer without disconnecting the power supply.
• Lights: The front panel 'of the system unit may display a variety of colored indicator lights. These lights are used to indicate whether the hard disk, the floppy disk or the CO¬RaM is being read or written.
• Roppy disk drive: The floppy disk drive is used to read the information stored in floppy disks (also called a diskette). The System Unit has a slit in which the floppy disk can be inserted. Floppy disk drive is a component that enables us spin the disk, and a recording/reading device that moves across the disk to read or write data.
• CD-ROM Drive: CD-ROM drive is a device that reads the information stored on CD. A CD-ROM is an abbreviated term for Compact Disk-Read Dn/y Memory.
A system unit includes the following parts:
- Motherboard
- Microprocessor
- Memory Chips
- System Clock
- Buses
- Ports
- Expansion Slots and Cards
CAREERS IN IT :
Computer technicians - repair and install computer components and systems. They may work on everything from personal computers and mainframe servers to printers. Some computer technicians are responsible for setting up and maintaining computer networks. Computer technicians can expect an hourly wage $13,50 to $22,50. Opportunities for advancement typically come in the form of work on more advanced computer systems.
A LOOK TO THE FUTURE : As you walk out the door, don't forget your computer...
Wouldn't it be nice if you could conveniently access internet wirelessly at any time during the day? What if you could send and receive e-mail while jogging without touching a screen, or send a friend live video of what you are looking at? Of course, many people currently use wireless phone technology when they are away from their home or office. What if these users could accomplish these tasks with an even smaller, more portable, and less intrusive system?
Nowadays as technology goes far away from an imagination,
its units get more and more complicated, meaning that their shapes getting so
tiny that it is size of tip of our finger.