Thursday, April 29, 2010
FUNCTIONS OF THE MAIN COMPONENTS OF A SYSTEM UNIT
SYSTEM UNIT
1.Box-like case that contains computer’s electronic components
2.Sometimes called the chassis
INPUT OUTPUT PORT
FRONT VIEW OF SYSTEN UNIT
INSIDE VIEW OF SYSTEM UNIT
Functions of the main components of a system unit
1.Input/Output port(I/O port):
A port is the point at which a peripheral attaches to a system unit
so that the peripheral can send data to or receive information from
the computer.
2.Power button:
To start on computer
3.Motherboard:
Main circuit board of the system unit, which has some electronic components
attached to it and others built into it.
4.Power Supply:
Convert standard electrical power into the form that computer can
use. If a power supply is not providing the necessary power, the
computer will not function properly.
5.DVD-ROM drive:
A device that reads DVD-ROM, also can read audio CDs, CDROMSs,
CD-Rs and CD-RWs.
6.CD-ROM drive :
A device that reads audio CDs, CD-ROMs, CD-Rs and CD-RWs.
7.DVD/CD-RW drive
It is a combination drive that reads DVD and CD media, it also
writes to CD-RW media. This drive also allows watching a DVD or burn a CD.
8.Reset button:
Kick of soft boot, instructing the computer to go through the process of
shutting down, which would clear memory and reset devices to their initialized
state. It simply removes power immediately.
9.Zip drive
A high-capacity disk drive that reads from and writes on a Zip disk
10.Floppy drive
A device that reads from and writes on a floppy disk
11.Hard disk drive
Type of storage device that contains one or more inflexible, circular platters
that store data, instructions and information. Also called a hard disk.
1.Box-like case that contains computer’s electronic components
2.Sometimes called the chassis
INPUT OUTPUT PORT
FRONT VIEW OF SYSTEN UNIT
INSIDE VIEW OF SYSTEM UNIT
Functions of the main components of a system unit
1.Input/Output port(I/O port):
A port is the point at which a peripheral attaches to a system unit
so that the peripheral can send data to or receive information from
the computer.
2.Power button:
To start on computer
3.Motherboard:
Main circuit board of the system unit, which has some electronic components
attached to it and others built into it.
4.Power Supply:
Convert standard electrical power into the form that computer can
use. If a power supply is not providing the necessary power, the
computer will not function properly.
5.DVD-ROM drive:
A device that reads DVD-ROM, also can read audio CDs, CDROMSs,
CD-Rs and CD-RWs.
6.CD-ROM drive :
A device that reads audio CDs, CD-ROMs, CD-Rs and CD-RWs.
7.DVD/CD-RW drive
It is a combination drive that reads DVD and CD media, it also
writes to CD-RW media. This drive also allows watching a DVD or burn a CD.
8.Reset button:
Kick of soft boot, instructing the computer to go through the process of
shutting down, which would clear memory and reset devices to their initialized
state. It simply removes power immediately.
9.Zip drive
A high-capacity disk drive that reads from and writes on a Zip disk
10.Floppy drive
A device that reads from and writes on a floppy disk
11.Hard disk drive
Type of storage device that contains one or more inflexible, circular platters
that store data, instructions and information. Also called a hard disk.
Monday, April 26, 2010
SYSTEM UNIT
What is system unit?
Box-like case that contains computer’s electronic components
Sometimes called the chassis
Front view of system unit
Inside view of system unit
Input/Output port (I/O port)
Box-like case that contains computer’s electronic components
Sometimes called the chassis
Front view of system unit
Inside view of system unit
Input/Output port (I/O port)
Thursday, April 22, 2010
COMPUTER ETHIC
ETHICS :
1. Computer can use for both good and bad intentions 2.
2.The standards that determine whether an action is good or bad are known as ethics
TEN COMMANDMENTS OF COMPUTER ETHIC
1) You should not use a computer to harm other people
2) You should not interfere with other people's computer work
3) You should not snoop around in other people's files
4) You should not use a computer to steal
5) You should not use a computer to bear false witness
6) You should not use or copy software for which you have not paid
7) You should not use other people's computer resources without authorization
9) You should think about the social consequences of the program you write
10) You should use a computer in ways that show consideration and respect
UNETHICAL IN USING COMPUTER
1.Use any computer account other than the one assigned to you.
2.Copy, distribute or remove copies of software from any computer.
3.Use computers inappropriately.
4.Modify data not specifically assigned to or created by the modifier.
5.Destroy data or property that is not owned by the destroyer
6.Use another persons programs or data without their permission.
7.Send or make available for viewing obscene.
8.Abuse or improperly use hardware or public software.
9.Commit any other act that is irresponsible or infringes upon the rights of others.
10.Upload and download unauthorized files or software (including viruses).
1. Computer can use for both good and bad intentions 2.
2.The standards that determine whether an action is good or bad are known as ethics
TEN COMMANDMENTS OF COMPUTER ETHIC
1) You should not use a computer to harm other people
2) You should not interfere with other people's computer work
3) You should not snoop around in other people's files
4) You should not use a computer to steal
5) You should not use a computer to bear false witness
6) You should not use or copy software for which you have not paid
7) You should not use other people's computer resources without authorization
9) You should think about the social consequences of the program you write
10) You should use a computer in ways that show consideration and respect
UNETHICAL IN USING COMPUTER
1.Use any computer account other than the one assigned to you.
2.Copy, distribute or remove copies of software from any computer.
3.Use computers inappropriately.
4.Modify data not specifically assigned to or created by the modifier.
5.Destroy data or property that is not owned by the destroyer
6.Use another persons programs or data without their permission.
7.Send or make available for viewing obscene.
8.Abuse or improperly use hardware or public software.
9.Commit any other act that is irresponsible or infringes upon the rights of others.
10.Upload and download unauthorized files or software (including viruses).
COMPUTER HARDWARE
Hardware:
Hardware is the name for the mechanical and electronic components of a computer.
Monitors –
1.The monitor shows information on the screen when you type.
2.This is called outputting information.
3.Monitors come in many types and sizes from the simple monochrome (one color)
screen to full color screens.
Keyboard -
1.The keyboard is used to type information into the computer or input information.
2.There are many different keyboard layouts and sizes with the most common for Latin
based languages being the QWERTY layout (named for the first 6 keys).The standard
keyboard has 101 keys.
Mouse –
1.Most modern computers today are run using a mouse-controlled pointer.
2.Generally, mouse has two buttons the left one is used to select objects and text
and the right one is used to access menus.
3.One type of mouse has a round ball under the bottom of the mouse that rolls and
turns two wheels that control the direction of the pointer on the screen
4.Another type of mouse uses an optical system to track the movement of the mouse.
Printers –
1.The printer takes the information on your screen and transfers it to paper or a
hard copy.
Speakers-
1.Speakers give out information in the form of sound.
2.Computer speakers range widely in quality and price.
System Unit
1.A system unit is also known as a base unit.
2.It is the main body of a desktop computer . Containing the:
>motherboard,
>power supply,
>cooling fans,
>internal disk drives,
>and expansion cards (such as video and network cards)
Hardware is the name for the mechanical and electronic components of a computer.
Monitors –
1.The monitor shows information on the screen when you type.
2.This is called outputting information.
3.Monitors come in many types and sizes from the simple monochrome (one color)
screen to full color screens.
Keyboard -
1.The keyboard is used to type information into the computer or input information.
2.There are many different keyboard layouts and sizes with the most common for Latin
based languages being the QWERTY layout (named for the first 6 keys).The standard
keyboard has 101 keys.
Mouse –
1.Most modern computers today are run using a mouse-controlled pointer.
2.Generally, mouse has two buttons the left one is used to select objects and text
and the right one is used to access menus.
3.One type of mouse has a round ball under the bottom of the mouse that rolls and
turns two wheels that control the direction of the pointer on the screen
4.Another type of mouse uses an optical system to track the movement of the mouse.
Printers –
1.The printer takes the information on your screen and transfers it to paper or a
hard copy.
Speakers-
1.Speakers give out information in the form of sound.
2.Computer speakers range widely in quality and price.
System Unit
1.A system unit is also known as a base unit.
2.It is the main body of a desktop computer . Containing the:
>motherboard,
>power supply,
>cooling fans,
>internal disk drives,
>and expansion cards (such as video and network cards)
Subscribe to:
Posts (Atom)