Friday, July 20, 2007
PRELIM EXAM
hi! i'm jayson rey viovicente. i was born on december 14,1990. i graduated high school from davao city national high school just last march. i am presently enrolled at AMA with the course BSIT.
i am living with my mom and dad with two younger sisters (i'm the eldest). i love playing online games with friends, basketball, table tennis and badminton, climbing or trecking...and i'm proud to say i've already been to Epol and Puting Bato at Samal Island. during saturdays, it's my gimik time with my friends. i am usually found at Autoshop or at Halo. i have no "love life" for now. kapoy pa!
PRELIM EXAM
SAMPLE PROGRAM OF C++
#include
using namespace std;
using namespace std;
int main()
{
cout << "Welcome to the wonderful world of C++!!!\n";
return 0;
}
{
cout << "Welcome to the wonderful world of C++!!!\n";
return 0;
}
OUTPUT:
Welcome to the wonderful world of C++!!!
Monday, July 16, 2007
Parts of Computer system
Computer System
Monitor
Another term for display screen. The term monitor, however, usually refers to the entire box, whereas display screen can mean just the screen. In addition, the term monitor often implies graphics capabilities. There are many ways to classify monitors. The most basic is in terms of color capabilities, which separates monitors into three classes:
RAM
Pronounced ramm, acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printers.
CPU
Abbreviation of central processing unit, and pronounced as separate letters. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system.
MOUSE
A device that controls the movement of the cursor or pointer on a display screen. A mouse is a small object you can roll along a hard, flat surface. Its name is derived from its shape, which looks a bit like a mouse, its connecting wire that one can imagine to be the mouse's tail, and the fact that one must make it scurry along a surface. As you move the mouse, the pointer on the display screen moves in the same direction. Mice contain at least one button and sometimes as many as three, which have different functions depending on what program is running. Some newer mice also include a scroll wheel for scrolling through long documents.
HARD DISK
A magnetic disk on which you can store computer data. The term hard is used to distinguish it from a soft, or floppy, disk. Hard disks hold more data and are faster than floppy disks. A hard disk, for example, can store anywhere from 10 to more than 100 gigabytes, whereas most floppies have a maximum storage capacity of 1.4 megabytes.
KEYBOARD
The set of typewriter-like keys that enables you to enter data into a computer. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. The keys on computer keyboards are often classified as follows:
MOTHERBOARD
The main circuit board of a microcomputer. The motherboard contains the connectors for attaching additional boards. Typically, the motherboard contains the CPU, BIOS, memory, mass storage interfaces, serial and parallel ports, expansion slots, and all the controllers required to control standard peripheral devices, such as the display screen, keyboard, and disk drive. Collectively, all these chips that reside on the motherboard are known as the motherboard's chipset.
Monitor
Another term for display screen. The term monitor, however, usually refers to the entire box, whereas display screen can mean just the screen. In addition, the term monitor often implies graphics capabilities. There are many ways to classify monitors. The most basic is in terms of color capabilities, which separates monitors into three classes:
RAM
Pronounced ramm, acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printers.
CPU
Abbreviation of central processing unit, and pronounced as separate letters. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place. In terms of computing power, the CPU is the most important element of a computer system.
MOUSE
A device that controls the movement of the cursor or pointer on a display screen. A mouse is a small object you can roll along a hard, flat surface. Its name is derived from its shape, which looks a bit like a mouse, its connecting wire that one can imagine to be the mouse's tail, and the fact that one must make it scurry along a surface. As you move the mouse, the pointer on the display screen moves in the same direction. Mice contain at least one button and sometimes as many as three, which have different functions depending on what program is running. Some newer mice also include a scroll wheel for scrolling through long documents.
HARD DISK
A magnetic disk on which you can store computer data. The term hard is used to distinguish it from a soft, or floppy, disk. Hard disks hold more data and are faster than floppy disks. A hard disk, for example, can store anywhere from 10 to more than 100 gigabytes, whereas most floppies have a maximum storage capacity of 1.4 megabytes.
KEYBOARD
The set of typewriter-like keys that enables you to enter data into a computer. Computer keyboards are similar to electric-typewriter keyboards but contain additional keys. The keys on computer keyboards are often classified as follows:
MOTHERBOARD
The main circuit board of a microcomputer. The motherboard contains the connectors for attaching additional boards. Typically, the motherboard contains the CPU, BIOS, memory, mass storage interfaces, serial and parallel ports, expansion slots, and all the controllers required to control standard peripheral devices, such as the display screen, keyboard, and disk drive. Collectively, all these chips that reside on the motherboard are known as the motherboard's chipset.
Saturday, July 14, 2007
What is computer software and hardware?!
What is computer hardware?!
Computer Hardware
Processors (CPUs)Pentium-4, Xeon, Itanium, Celeron, 486, Athlon, K6, PowerPC, etc.MotherboardsMotherboard Information, Manufacturers, and Form FactorsChipsetsMotherboard Chipset Information.Bus and I/O StandardsPCI Express, RapidIO, Hypertransport, PCI, ISA, EISA, VL, Micro Channel, PCMCIA, CardBus, AGP, I2O, USB, IDE, SCSI, Fibre Channel, Firewire, HIPPI, HSSI, etc. BIOSBIOS Vendors and BIOS Information.MemoryMemory Information.StorageHard Disks, CD-ROM, DVD, Floppy Drives, and Removable Storage.VideoGraphics Cards and Monitors.AudioSound Card Information.ModemsModem Information.ScannersScanner Information.PrintersPrinter Information.Computer StandardsPlug and Play, On-Now, NetPC, Device Bay, PC99, etc.Other Computer TopicsInput Devices, Cameras, Cases, Cables, Switch Boxes, Power Supplies, Serial & Parallel Ports, etc.
What is computer software?!
COMPUTER SOFTWARE
Professor John A. Nairn, Wood Science & Engineering
Scientific Software
See my Computational Mechanics web site for documentation and downloads for finite element analysis (FEA) and material point method (MPM) software. My Other Software web site also lists some other scientific software.
Other Software
My Other Software web site lists all software packages that are available on the internet. This software includes scientific software and non-scientific, commercial software.
Java Applications
The following applications can be clicked to launch on your computer using Java Web Start technology.
Oregon State Laminates - A graphical interface for doing laminated plate theory calculations of composites. This is a draft version of a work in progress. It will be updated as it progresses.
Click image to launch
Units Converter Application - Convert almost any type of units into all other related units with a single click.
Click image to launch
Heat Transport Calculations - One-dimensional simulation of heat transport in slabs, cylinders, and spheres with convection boundary conditions.
Click image to launch
Java Applets
The following is a list of some JAVA Applets. These are some trial applets; more will be posted if they prove worthwhile.
Units Converter - enter any number of any units and convert to a wide range of other units.
Copolymer Equation - explore an equation that gives the composition of a copolymer from monomer properties.
Notes on Java Web Start Technology
Java Web Start is a new method to deliver Java Applications over the internet without need to involve the browser. In brief, the links for each of the above applications will initiate Java Web Start. The following will happen when clicked:
A small XML file with extension .jnlp will be downloaded to computer.
Your browser should then automatically launch the Java Web Start application on your computer (if you do not have that application, it is available for free from www.sun.com. You should download the latest Java Runtime Environment (JRE). If you think you might develop Java applications, you can download the latest Java Development Kit (JDK) instead.
The Java Web Start application will download the Java application to a cache on your computer and run the application.
You can re-run that application at any future time without logging on to the Internet simply be running the Java Web Start application and selecting it from the list. As an added bonus, everytime you run it (and you are connected to the Internet), the Java Web Start application will automatically check if a newer version is available and download it if needed.
If you are running the application frequently, you can use the Java Web Start application to create a desktop version of the application for easier launching.
Java Web Start applications are also secure. They are not allowed to do anything that can cause damage unless the application is "signed" and you verify and accept an authentication request. All above applications are "unsigned" and therefore can not modify you computer.
Computer Hardware
Processors (CPUs)Pentium-4, Xeon, Itanium, Celeron, 486, Athlon, K6, PowerPC, etc.MotherboardsMotherboard Information, Manufacturers, and Form FactorsChipsetsMotherboard Chipset Information.Bus and I/O StandardsPCI Express, RapidIO, Hypertransport, PCI, ISA, EISA, VL, Micro Channel, PCMCIA, CardBus, AGP, I2O, USB, IDE, SCSI, Fibre Channel, Firewire, HIPPI, HSSI, etc. BIOSBIOS Vendors and BIOS Information.MemoryMemory Information.StorageHard Disks, CD-ROM, DVD, Floppy Drives, and Removable Storage.VideoGraphics Cards and Monitors.AudioSound Card Information.ModemsModem Information.ScannersScanner Information.PrintersPrinter Information.Computer StandardsPlug and Play, On-Now, NetPC, Device Bay, PC99, etc.Other Computer TopicsInput Devices, Cameras, Cases, Cables, Switch Boxes, Power Supplies, Serial & Parallel Ports, etc.
What is computer software?!
COMPUTER SOFTWARE
Professor John A. Nairn, Wood Science & Engineering
Scientific Software
See my Computational Mechanics web site for documentation and downloads for finite element analysis (FEA) and material point method (MPM) software. My Other Software web site also lists some other scientific software.
Other Software
My Other Software web site lists all software packages that are available on the internet. This software includes scientific software and non-scientific, commercial software.
Java Applications
The following applications can be clicked to launch on your computer using Java Web Start technology.
Oregon State Laminates - A graphical interface for doing laminated plate theory calculations of composites. This is a draft version of a work in progress. It will be updated as it progresses.
Click image to launch
Units Converter Application - Convert almost any type of units into all other related units with a single click.
Click image to launch
Heat Transport Calculations - One-dimensional simulation of heat transport in slabs, cylinders, and spheres with convection boundary conditions.
Click image to launch
Java Applets
The following is a list of some JAVA Applets. These are some trial applets; more will be posted if they prove worthwhile.
Units Converter - enter any number of any units and convert to a wide range of other units.
Copolymer Equation - explore an equation that gives the composition of a copolymer from monomer properties.
Notes on Java Web Start Technology
Java Web Start is a new method to deliver Java Applications over the internet without need to involve the browser. In brief, the links for each of the above applications will initiate Java Web Start. The following will happen when clicked:
A small XML file with extension .jnlp will be downloaded to computer.
Your browser should then automatically launch the Java Web Start application on your computer (if you do not have that application, it is available for free from www.sun.com. You should download the latest Java Runtime Environment (JRE). If you think you might develop Java applications, you can download the latest Java Development Kit (JDK) instead.
The Java Web Start application will download the Java application to a cache on your computer and run the application.
You can re-run that application at any future time without logging on to the Internet simply be running the Java Web Start application and selecting it from the list. As an added bonus, everytime you run it (and you are connected to the Internet), the Java Web Start application will automatically check if a newer version is available and download it if needed.
If you are running the application frequently, you can use the Java Web Start application to create a desktop version of the application for easier launching.
Java Web Start applications are also secure. They are not allowed to do anything that can cause damage unless the application is "signed" and you verify and accept an authentication request. All above applications are "unsigned" and therefore can not modify you computer.
Monday, July 9, 2007
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