Contemporary computer put ALU and control units into a single integrated circuit known as the Central Processing Unit or CPU. Typically, the computer memory is placed in the top few small integrated circuits near the CPU. Tool which occupies most of the computer room is ancilliary system (for example, to provide electrical power) or instrument I / O.
Some larger computers differ from the above model in one main thing - they have multiple CPUs and control units working simultaneously. Moreover, several computers, used largely for research purposes and scientific computing, have differed significantly from the above model, but they have found little commercial use.
The function of the computer, in principle, is actually quite simple. Computer reaching the command and data from memory. Command conducted, the results are stored, and subsequent orders achieved. This procedure is repeated until the computer is turned off.
Showing posts with label computer components. Show all posts
Showing posts with label computer components. Show all posts
Saturday, October 10, 2009
Instruction
Commands discussed above is not a command like human language. Computers only have a limited number of simple commands well defined. Ordinary command is understood most of the computer is "copy the contents of cell 123, and a place in the cell clone 456", "add the contents of cell 666 to cell 042, and the result in 013 cells", and "if the contents of cell 999 is 0, the next command you in 345 cells ".
Instructions represented in the computer as a number - code for "copy" may be 001, for example. A set of special commands that are supported by a particular computer is known as machine language. In practice, people usually do not write instructions for computers directly in machine language but use the programming language "high level" is then translated into machine language automatically by special computer programs (interpreters and compilers). Some programming languages are closely related to machine language, such as an assembler (low level languages); on the other hand, languages like Prolog are based on abstract principles far removed from actual implementation details of the engine (high-level language)
Instructions represented in the computer as a number - code for "copy" may be 001, for example. A set of special commands that are supported by a particular computer is known as machine language. In practice, people usually do not write instructions for computers directly in machine language but use the programming language "high level" is then translated into machine language automatically by special computer programs (interpreters and compilers). Some programming languages are closely related to machine language, such as an assembler (low level languages); on the other hand, languages like Prolog are based on abstract principles far removed from actual implementation details of the engine (high-level language)
Input and results
I / O allows the computer to get information from the outside world, and put his work there, can the physical form (hardcopy) or non-physical (softcopy). There are various kinds of devices I / O, from the familiar keyboards, monitors and disk drives, to the more unusual such as a webcam (web camera, printer, scanner, and so on.
Which is owned by all the usual input devices is that they encode (change) information of a kind to the data can be further processed by a digital computer system. Instrument output, decoding the data into information that can be understood by computer users. In this sense, the digital computer system is an example of data processing systems.
Which is owned by all the usual input devices is that they encode (change) information of a kind to the data can be further processed by a digital computer system. Instrument output, decoding the data into information that can be understood by computer users. In this sense, the digital computer system is an example of data processing systems.
Processing
Central processing unit or CPU (central processing unit) contributes to process referrals, perform calculation and deal with excessive menerusi information computer system. Processing units or devices will also communicate with the device input, output and storan to implement directives related.
Image: CPU with pins.jpg
Example of a CPU in packaging Ball Grid Array (BGA) is displayed upside down by showing her legs
In the von Neumann architecture of the original, he describes an Arithmetic and Logic Unit and a Control Unit. In modern computers, the two units are located in a single integrated circuit (IC - Integrated Circuit), which is usually called the CPU (Central Processing Unit).
Arithmetic and Logic Unit, or Arithmetic Logic Unit (ALU), is a device that performs the basic implementation as the implementation of arithmetic (addition, subtraction, and the like), the implementation of logical (AND, OR, NOT), and the implementation of comparison (eg, compare the contents of two slots for equality). In this unit performed "work" is real.
Save the command control unit is now done by computers, orders for the implementation of the ALU and get back information (from memory) needed to execute the command, and move back the results to the appropriate memory location. Once that happens, the control unit to go to the next command (usually located in the next slot, except if the order is a jump command that tells the computer that the next order placed at other locations
Image: CPU with pins.jpg
Example of a CPU in packaging Ball Grid Array (BGA) is displayed upside down by showing her legs
In the von Neumann architecture of the original, he describes an Arithmetic and Logic Unit and a Control Unit. In modern computers, the two units are located in a single integrated circuit (IC - Integrated Circuit), which is usually called the CPU (Central Processing Unit).
Arithmetic and Logic Unit, or Arithmetic Logic Unit (ALU), is a device that performs the basic implementation as the implementation of arithmetic (addition, subtraction, and the like), the implementation of logical (AND, OR, NOT), and the implementation of comparison (eg, compare the contents of two slots for equality). In this unit performed "work" is real.
Save the command control unit is now done by computers, orders for the implementation of the ALU and get back information (from memory) needed to execute the command, and move back the results to the appropriate memory location. Once that happens, the control unit to go to the next command (usually located in the next slot, except if the order is a jump command that tells the computer that the next order placed at other locations
Operating systems
The operating system is a combination of such a useful piece of code. As a kind of computer code can be used simultaneously by a wide range of computer programs, after many years, programmers finally menmindahkannya into the operating system.
Operating system, determining which program is run, when, and which tools (such as memory or I / O) that they use. The operating system also provides services to other programs, such as code (drivers) that allows programmers to write programs for a machine without needing to know the details of all electronic devices connected.
[edit] Use of computers
Operating system, determining which program is run, when, and which tools (such as memory or I / O) that they use. The operating system also provides services to other programs, such as code (drivers) that allows programmers to write programs for a machine without needing to know the details of all electronic devices connected.
[edit] Use of computers
Monday, June 1, 2009
Tips use the keyboard
In the current period has a range of products available keyboard
directed so that you feel comfortable typing, although in a long time.
But more important is how you set the postures
and the position of your body, especially your arms, so that you can
avoid fatigue and injury.
To have a good idea to follow that advice, Stephanie Brown, a
American home piano teacher, in the magazine "Her World". "Follow the discipline
piano player is in stage, "he said. Stephanie gave five
instructions to apply when you type on the keyboard.
1. Sejajarkan wrist with the palm
Strive always your wrist in line with the
hand. Lemaskan your wrist as
float. Do not tense.
2. Position elbow hang
Make sure your elbow in a position free swing.
Lean on the elbow back seat while typing, in addition to
Please continue to learn and
practice exercises in this module
MODUL of teaching materials
All Program Expertise
10-finger typing skills
19
to to type, you also create a tense and
tired quickly.
3. Lemaskan index finger and your ring finger
Hot-key without typing is tired accommodate all fingers
you. Do not be rigid and tense. Leave the weak, rileks, is.
4. Press the button with the quiet
Do not press the button with a strong stream or strength
on your hands full. Remember, you're typing, not
hit the button keyboard.
5. When you're not typing
Lemaskan whole hand when not push the button
on the keyboard. The situation before you type the
affect the condition of your time in typing
directed so that you feel comfortable typing, although in a long time.
But more important is how you set the postures
and the position of your body, especially your arms, so that you can
avoid fatigue and injury.
To have a good idea to follow that advice, Stephanie Brown, a
American home piano teacher, in the magazine "Her World". "Follow the discipline
piano player is in stage, "he said. Stephanie gave five
instructions to apply when you type on the keyboard.
1. Sejajarkan wrist with the palm
Strive always your wrist in line with the
hand. Lemaskan your wrist as
float. Do not tense.
2. Position elbow hang
Make sure your elbow in a position free swing.
Lean on the elbow back seat while typing, in addition to
Please continue to learn and
practice exercises in this module
MODUL of teaching materials
All Program Expertise
10-finger typing skills
19
to to type, you also create a tense and
tired quickly.
3. Lemaskan index finger and your ring finger
Hot-key without typing is tired accommodate all fingers
you. Do not be rigid and tense. Leave the weak, rileks, is.
4. Press the button with the quiet
Do not press the button with a strong stream or strength
on your hands full. Remember, you're typing, not
hit the button keyboard.
5. When you're not typing
Lemaskan whole hand when not push the button
on the keyboard. The situation before you type the
affect the condition of your time in typing
Monitor
Types of monitor
Monitor Catoda Ray Tube (CRT)
This monitor is a monitor that has a tube to produce electron
screen shot, so the image created on the screen as I work in television. Monitor this
the 15 pin port with 3 lines.
Monitor Liquid Crystal Display (LCD)
How this is to monitor the flow of electrical stimulation from the outside
To the liquid crystal (material biphenyl), so that will change the properties of light
Skipping crystal.
TFT LCD Monitor
TFT LCD technology such as liquid crystal diisikan between the two plate glass, the color
filter glass and the TFT glass. Color filter glass color filters that have served
emit color, while glass has TFT Thin Film transistor of pixels
are shown. Liquid crystal move in accordance with the voltage difference between the color
glass filter with the TFT glass. The amount of light that dipasok by Back Light is determined by
the amount of movement of liquid crystal which in turn will form the color.
Table-type according to the type of monitor adapter card, the color resolution, and the number of pins.
Description:
= MDA Monochrome Display Adapter
EGA = Enhanced Graphics Adapter
VGA = Video Graphics Array
CGA = Color Graphics Adapter
XGA = X-Graphic Adapter
SVGA = Super Video Graphics Array
3
Monitor Catoda Ray Tube (CRT)
This monitor is a monitor that has a tube to produce electron
screen shot, so the image created on the screen as I work in television. Monitor this
the 15 pin port with 3 lines.
Monitor Liquid Crystal Display (LCD)
How this is to monitor the flow of electrical stimulation from the outside
To the liquid crystal (material biphenyl), so that will change the properties of light
Skipping crystal.
TFT LCD Monitor
TFT LCD technology such as liquid crystal diisikan between the two plate glass, the color
filter glass and the TFT glass. Color filter glass color filters that have served
emit color, while glass has TFT Thin Film transistor of pixels
are shown. Liquid crystal move in accordance with the voltage difference between the color
glass filter with the TFT glass. The amount of light that dipasok by Back Light is determined by
the amount of movement of liquid crystal which in turn will form the color.
Table-type according to the type of monitor adapter card, the color resolution, and the number of pins.
Description:
= MDA Monochrome Display Adapter
EGA = Enhanced Graphics Adapter
VGA = Video Graphics Array
CGA = Color Graphics Adapter
XGA = X-Graphic Adapter
SVGA = Super Video Graphics Array
3
UPS (Uninterruptible Power Supply) & stabilizer
The use of electrical current has become a fundamental requirement, especially
in the industry and offices that use a variety of electrical equipment to support
operation work. Use of this great problem of course will result in the supply line
electricity. And as the solution is the use of UPS (Uninterruptible Power Supply)
as an alternative source of energy while.
UPS (Uninterruptible Power Supply) is a good tool to have installed because
storage battery electric current that can be used if the source of the mainstream of the dead. UPS Capacity
farraginous from 200 watt to kilowatt to a few workstaion to protect
several large servers. Some of the UPS can communicate with the computer software
so that men can be set to shutdown the computer, in case of power failures.
Basically, UPS is a source of alternative energy that replaces the temporary
supply of electricity in this case the main power source PLN. However, UPS is well able to
handle the problems of electrical interference such as voltage transien, voltage spike, or
harmonisa distortion / noise.
UPS system itself is a stand-alone system to supply energy
PLN electricity. UPS is expected to protect critical electronic equipment against harmful
voltage power supply, such as computers, network komouter, even the equipment industry to avoid
from the fatal damage. While the stabilizer / stabilizer is a tool that is also used
to stabilize the current-voltage electricity. Akan But on the stabilizer does not use
Cash On meyimpan electric power sata dead. So stabilizer / stabilizer is a
used to add catudaya used to set the computer.
in the industry and offices that use a variety of electrical equipment to support
operation work. Use of this great problem of course will result in the supply line
electricity. And as the solution is the use of UPS (Uninterruptible Power Supply)
as an alternative source of energy while.
UPS (Uninterruptible Power Supply) is a good tool to have installed because
storage battery electric current that can be used if the source of the mainstream of the dead. UPS Capacity
farraginous from 200 watt to kilowatt to a few workstaion to protect
several large servers. Some of the UPS can communicate with the computer software
so that men can be set to shutdown the computer, in case of power failures.
Basically, UPS is a source of alternative energy that replaces the temporary
supply of electricity in this case the main power source PLN. However, UPS is well able to
handle the problems of electrical interference such as voltage transien, voltage spike, or
harmonisa distortion / noise.
UPS system itself is a stand-alone system to supply energy
PLN electricity. UPS is expected to protect critical electronic equipment against harmful
voltage power supply, such as computers, network komouter, even the equipment industry to avoid
from the fatal damage. While the stabilizer / stabilizer is a tool that is also used
to stabilize the current-voltage electricity. Akan But on the stabilizer does not use
Cash On meyimpan electric power sata dead. So stabilizer / stabilizer is a
used to add catudaya used to set the computer.
Mouse
Mouse Input is a tool that move the pointer Works, bookmark (pointing device)
command or program on the monitor. Use the mouse is the most important part of the system
operations that use the graphics display. At the time of the mouse users often work
used the term "Pointer" to move the work and direct
mouse in the space of the system operasi.Sebagian there are three large buttons, but the
Generally, only two buttons that function key that is most left and the far right.
The influence of the stress or the key is known by the term "Click" depending on the object
(area) that we sight. In addition, we also recognize the mouse with the term "Drag" which means
friction atua interesting. When pressing the left button without releasing the
replace one of the objects, a result will move the object to another object. Kemungkinankeungkinan
This depends on the type of program that we run the application. Mouse connected to the
a cable of the mouse. End of the cable in the input port which is
Computers in the CPU. While the Mouse is comprised of:
Dual button
Three button
Scroll button
Like the keyboard, View from the end of the cable that connects Mouse
with the CPU, in the Mouse serial, PS / 2, USB. In addition, also have the mouse optic and wirelees
(without cable / wireless). On the type of old, there is a rubber ball didalm mouse. Rubber ball
move the mouse responds to movement on a surface. This rubber ball movement akan
changes provide the signal detected by a contact sensor, which is then converted by
CPU into cursor movement on the screen.
Then the optical mouse is shown. In the mouse of this type of mouse does not use the ball again
rubber, but have been using optic sensors to respond to mouse movement. With the optic sensor,
mouse free from dust, dirt stick to a regular ball on the rubber, so that the
errors in the movement of the cursor on the monitor layer.
Then again appear in the mouse pemakaiannya without using the cable,
with this technology the user is not dependent on the length of cable from the mouse, so it can
utilize more free mouse
command or program on the monitor. Use the mouse is the most important part of the system
operations that use the graphics display. At the time of the mouse users often work
used the term "Pointer" to move the work and direct
mouse in the space of the system operasi.Sebagian there are three large buttons, but the
Generally, only two buttons that function key that is most left and the far right.
The influence of the stress or the key is known by the term "Click" depending on the object
(area) that we sight. In addition, we also recognize the mouse with the term "Drag" which means
friction atua interesting. When pressing the left button without releasing the
replace one of the objects, a result will move the object to another object. Kemungkinankeungkinan
This depends on the type of program that we run the application. Mouse connected to the
a cable of the mouse. End of the cable in the input port which is
Computers in the CPU. While the Mouse is comprised of:
Dual button
Three button
Scroll button
Like the keyboard, View from the end of the cable that connects Mouse
with the CPU, in the Mouse serial, PS / 2, USB. In addition, also have the mouse optic and wirelees
(without cable / wireless). On the type of old, there is a rubber ball didalm mouse. Rubber ball
move the mouse responds to movement on a surface. This rubber ball movement akan
changes provide the signal detected by a contact sensor, which is then converted by
CPU into cursor movement on the screen.
Then the optical mouse is shown. In the mouse of this type of mouse does not use the ball again
rubber, but have been using optic sensors to respond to mouse movement. With the optic sensor,
mouse free from dust, dirt stick to a regular ball on the rubber, so that the
errors in the movement of the cursor on the monitor layer.
Then again appear in the mouse pemakaiannya without using the cable,
with this technology the user is not dependent on the length of cable from the mouse, so it can
utilize more free mouse
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