تويت
comper ut
What is the computer?
Computer is the machine used for electronic data processing of the input device, through the CPU to obtain useful information, and is done through programs known to be computer.
Computer types: --
1. Computers Network (Network) is a group of computers linked with each other and more than one user can work with.
2. PC (Personal Computer) and used for only one person.
What is the computer?
The term (PC) can be explained in several ways, namely:
V defined as an electronic computer.
V detailed explanation on the computer science of modern science.
V detailed explanation on the personal computer (PC).
(1) computer as an electronic
Computer is the electronic device is able to hold a vast number of very mathematical and logical operations in record time too (millions of operations in a fraction of a second), and differs from the human mind (which he is the author) that there Tires and not give up the Global.
(2) computer science
Computer science is divided into two main themes:
Ü Section equipment Hardware
Ü Section programmes Software
First: Section equipment (Hardware):
Equipment is significant components of the computer, which can be touched by hand is electronic or electrical components or mechanical.
And also can be divided into four sections:
Input Devices (Input):
Used in data entry and information in their various forms to the computer, a basic introduction (Standard Input) is the keyboard (Keyboard) and is used to enter orders, texts and the introduction of other devices are used to introduce other forms of data such as Scan Image Scanner to introduce, for the introduction of digital camera images and movies , the optical pen to Edjalaltokiat The line manual mapping, the Plotter to introduce three-dimensional figures, microphone to introduce voices and music, mouse Mouse to enter orders through the click or drag and dumping (Drag & Drop), Joystick control stick is used to control programs and games used to send orders to programmes Games on the image of electrical impulses parallel.
Processing equipment (Processing):
The treatment is the main CPU (CPU) and shortening of the term (Central Processing Unit) is a CPU as a reason for humans where the most basic computer operations, such as controlling the functioning of data and identify memory addresses to be reading or writing and identify any units or data precedence in the implementation and other processes, and divided CPU into two main themes:
The control unit (CU) ControlUnit: It is responsible for controlling all the organs and computer data.
The calculation and logic unit (ALU) & Arithmetic Logic Unit: which is responsible for the performance and implementation of all mathematical and logical operations inside the computer.
* Note:
(Calculations are combined (+) and subtractions (-) and the quotient (/) and battery (*)).
(Logical operations are) <,>,> =, =>, =, NOT, OR, AND, XOR (
Storage devices (Storage Device):
And where data storage and information permanently or temporarily divided into two parts:
A. Internal storage: storage of data within the computer itself is divided into two parts namely:
1. procedure Permanent storage: either a storage hard drive HardDisk the image of electromagnetic or ROM memory Standing on the image of electric impulses.
2. storage provisional rules of procedure: The cache in the RAM where the computer scan all the contents of the RAM as soon as the electricity was cut off, which must be completely empty of RAM when you start your computer.
B. External storage: The conservation data Floppy diskettes or CDs or tapes Tape CDROM or Zip Drive hard disk or hard disk maintenance of the computer outside the Hard Disk.
1. Directed finished off (Output Device):
Used to pull data from computer to the user in various forms of data.
Output devices: the screen is called the BIOS StandardOutput used to get data on the image of the invisible, and the handset is used to get data in the form of audible voice, the printer used to get data on paper and can be printing research, books and envelopes, envelopes, cards and many types of securities in different forms.
Second: Programme (Software):
Programmes are part of the intangible world of computers, which can not touch Hand words a million references electrical and magnetic patches, the computer data transfer to or watch audio so the user can understand and benefit from them.
The software is divided into three main sections are:
1. Operating systems (Operation System)
Programs operating systems is the most important type of programmes and rely on the rest of software in their work, and without operating system can not work the computer, nor can any programme of work without a computer operating system, the operating system is a link between the user and the computer, which contains system Operating on all orders, which enables the user to create and open, filing and design special programmes and so on.
Systems are months following operating systems:
V disk operating system (MS DOS) Microsoft Disk Operation System
Operating systems of the strongest and most stable and widespread.
V Windows 95
The leap in the world of operating systems and a turning point of great environmental text to the graphical environment.
V operating systems Windows NT, Windows 98, Windows 2000 misfortune advanced versions of the Windows 95.
V There are many other operating systems, such as multiple UNIX, LINUX, OS / 2, Novel NetWare.
1. Programming languages (Programming ******** s):
Programming languages fall to levels as they develop:
V machine language is the mother tongue of all programming languages.
V assembly language is the development and streamlining of the language of the machine.
V High languages are closer to human language (such as basic, Fortran, Pascal, C, Cobol, etc.).
V languages is a very affluent languages working on graphical environments and are easily and force (such Vijul basic, Delphi, Vijul C + +, Vijul Fu ** Pro .... etc.).
2. Applications (Applications):
Applications are the widest door to enter the world of computers and design of these programmes by individuals and companies and that such programmes are very large and with a remarkable capacity to meet the wishes of the user.
No application software user serve in all areas of life (such as medicine, engineering, accounting, economics, science programs and games for children and many many others).
We have completed the definition of computer science of modern science and move to the second section of the definition of the personal computer as a.
(3). Personal computer (PC):
When we look at any computer ordinary note that the phenomenon of the things are:
¨ screen.
¨ keyboard.
¨ mouse.
¨ unit (CPU) system.
¨ headphones.
¨ printer.
This will be available in the computer after collecting and delivering it to the ordinary user.
Q: But when maintenance engineer wish compile a computer, it needs the following things:
¨ Fund Case.
¨ motherboard Motherboard.
¨ processor + fan Processor + Fan.
¨ RAM memory.
¨ cards Cards (Fax modem, Sound, VGA).
¨ Hard Disk hard drive.
¨ operator Disks Floppy Drive Disk.
¨ laser DVD player CDROM Drive.
¨ Keyboard Keyboard.
¨ Mouse mouse.
¨ Speakers Speakers.
¨ Screen Monitor.
¨ printer Printer.
1. Fund Case:
Case with ATX Power Supply Case with AT Power Supply
Is inside the container, which contains most of the most important parts of the computer, and the figure for the Outer Case comes many designs for a taste of the user because the outer appearance for the Case when the user pays an attractive purchase price, and there are at the forefront of Case from the inside group wires to deliver motherboard with the following sections of the Case:
(Note: Each wire is written by the end of a plastic name)
¨ Power to connect with key Power SW.
¨ Reset to connect with the key SWReset.
¨ SPK (Speaker) to connect with the handset for the Interior Case.
¨ Power LED to connect with the green light at the forefront of Case, which indicates the arrival of the energy system.
¨ HD LED to connect with the red light at the forefront of Case, which shows the work of the Hard Disk (read or write).
¨ Turbo to connect with the key in the old Turbo.
¨ Turbo LED to connect with the orange light which indicates the presence of Turbo button in the development of any organ ON maximum speed.
¨ contains the Case also in the ass to the Power Supply unit energy.
What is the computer?
Computer is the machine used for electronic data processing of the input device, through the CPU to obtain useful information, and is done through programs known to be computer.
Computer types: --
1. Computers Network (Network) is a group of computers linked with each other and more than one user can work with.
2. PC (Personal Computer) and used for only one person.
What is the computer?
The term (PC) can be explained in several ways, namely:
V defined as an electronic computer.
V detailed explanation on the computer science of modern science.
V detailed explanation on the personal computer (PC).
(1) computer as an electronic
Computer is the electronic device is able to hold a vast number of very mathematical and logical operations in record time too (millions of operations in a fraction of a second), and differs from the human mind (which he is the author) that there Tires and not give up the Global.
(2) computer science
Computer science is divided into two main themes:
Ü Section equipment Hardware
Ü Section programmes Software
First: Section equipment (Hardware):
Equipment is significant components of the computer, which can be touched by hand is electronic or electrical components or mechanical.
And also can be divided into four sections:
Input Devices (Input):
Used in data entry and information in their various forms to the computer, a basic introduction (Standard Input) is the keyboard (Keyboard) and is used to enter orders, texts and the introduction of other devices are used to introduce other forms of data such as Scan Image Scanner to introduce, for the introduction of digital camera images and movies , the optical pen to Edjalaltokiat The line manual mapping, the Plotter to introduce three-dimensional figures, microphone to introduce voices and music, mouse Mouse to enter orders through the click or drag and dumping (Drag & Drop), Joystick control stick is used to control programs and games used to send orders to programmes Games on the image of electrical impulses parallel.
Processing equipment (Processing):
The treatment is the main CPU (CPU) and shortening of the term (Central Processing Unit) is a CPU as a reason for humans where the most basic computer operations, such as controlling the functioning of data and identify memory addresses to be reading or writing and identify any units or data precedence in the implementation and other processes, and divided CPU into two main themes:
The control unit (CU) ControlUnit: It is responsible for controlling all the organs and computer data.
The calculation and logic unit (ALU) & Arithmetic Logic Unit: which is responsible for the performance and implementation of all mathematical and logical operations inside the computer.
* Note:
(Calculations are combined (+) and subtractions (-) and the quotient (/) and battery (*)).
(Logical operations are) <,>,> =, =>, =, NOT, OR, AND, XOR (
Storage devices (Storage Device):
And where data storage and information permanently or temporarily divided into two parts:
A. Internal storage: storage of data within the computer itself is divided into two parts namely:
1. procedure Permanent storage: either a storage hard drive HardDisk the image of electromagnetic or ROM memory Standing on the image of electric impulses.
2. storage provisional rules of procedure: The cache in the RAM where the computer scan all the contents of the RAM as soon as the electricity was cut off, which must be completely empty of RAM when you start your computer.
B. External storage: The conservation data Floppy diskettes or CDs or tapes Tape CDROM or Zip Drive hard disk or hard disk maintenance of the computer outside the Hard Disk.
1. Directed finished off (Output Device):
Used to pull data from computer to the user in various forms of data.
Output devices: the screen is called the BIOS StandardOutput used to get data on the image of the invisible, and the handset is used to get data in the form of audible voice, the printer used to get data on paper and can be printing research, books and envelopes, envelopes, cards and many types of securities in different forms.
Second: Programme (Software):
Programmes are part of the intangible world of computers, which can not touch Hand words a million references electrical and magnetic patches, the computer data transfer to or watch audio so the user can understand and benefit from them.
The software is divided into three main sections are:
1. Operating systems (Operation System)
Programs operating systems is the most important type of programmes and rely on the rest of software in their work, and without operating system can not work the computer, nor can any programme of work without a computer operating system, the operating system is a link between the user and the computer, which contains system Operating on all orders, which enables the user to create and open, filing and design special programmes and so on.
Systems are months following operating systems:
V disk operating system (MS DOS) Microsoft Disk Operation System
Operating systems of the strongest and most stable and widespread.
V Windows 95
The leap in the world of operating systems and a turning point of great environmental text to the graphical environment.
V operating systems Windows NT, Windows 98, Windows 2000 misfortune advanced versions of the Windows 95.
V There are many other operating systems, such as multiple UNIX, LINUX, OS / 2, Novel NetWare.
1. Programming languages (Programming ******** s):
Programming languages fall to levels as they develop:
V machine language is the mother tongue of all programming languages.
V assembly language is the development and streamlining of the language of the machine.
V High languages are closer to human language (such as basic, Fortran, Pascal, C, Cobol, etc.).
V languages is a very affluent languages working on graphical environments and are easily and force (such Vijul basic, Delphi, Vijul C + +, Vijul Fu ** Pro .... etc.).
2. Applications (Applications):
Applications are the widest door to enter the world of computers and design of these programmes by individuals and companies and that such programmes are very large and with a remarkable capacity to meet the wishes of the user.
No application software user serve in all areas of life (such as medicine, engineering, accounting, economics, science programs and games for children and many many others).
We have completed the definition of computer science of modern science and move to the second section of the definition of the personal computer as a.
(3). Personal computer (PC):
When we look at any computer ordinary note that the phenomenon of the things are:
¨ screen.
¨ keyboard.
¨ mouse.
¨ unit (CPU) system.
¨ headphones.
¨ printer.
This will be available in the computer after collecting and delivering it to the ordinary user.
Q: But when maintenance engineer wish compile a computer, it needs the following things:
¨ Fund Case.
¨ motherboard Motherboard.
¨ processor + fan Processor + Fan.
¨ RAM memory.
¨ cards Cards (Fax modem, Sound, VGA).
¨ Hard Disk hard drive.
¨ operator Disks Floppy Drive Disk.
¨ laser DVD player CDROM Drive.
¨ Keyboard Keyboard.
¨ Mouse mouse.
¨ Speakers Speakers.
¨ Screen Monitor.
¨ printer Printer.
1. Fund Case:
Case with ATX Power Supply Case with AT Power Supply
Is inside the container, which contains most of the most important parts of the computer, and the figure for the Outer Case comes many designs for a taste of the user because the outer appearance for the Case when the user pays an attractive purchase price, and there are at the forefront of Case from the inside group wires to deliver motherboard with the following sections of the Case:
(Note: Each wire is written by the end of a plastic name)
¨ Power to connect with key Power SW.
¨ Reset to connect with the key SWReset.
¨ SPK (Speaker) to connect with the handset for the Interior Case.
¨ Power LED to connect with the green light at the forefront of Case, which indicates the arrival of the energy system.
¨ HD LED to connect with the red light at the forefront of Case, which shows the work of the Hard Disk (read or write).
¨ Turbo to connect with the key in the old Turbo.
¨ Turbo LED to connect with the orange light which indicates the presence of Turbo button in the development of any organ ON maximum speed.
¨ contains the Case also in the ass to the Power Supply unit energy.
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