Prelim-Exam

sample of c++

#include
using namespace std;
int main ()
{
cout << "Hello World! ";
cout << "I'm a C++ program";
return 0;
}

Prelim-Exam

My Autobiography

I am Robert B. Moral Jr. I was born on March 25,1991. My father's name is

Robert R. Moral Sr. And my mother's name is Elma B. Moral I have a sister her name is Catherine Mae B. Moral. She is older my older sister. I am a freshmen college student of AMACC of davao. I lived at R.Castillo st. Agdao DAvao City. When I finished my study i want to help my parents and have a nice job.

So I will study hard to get high grade and graduate.

Computer Systems
1. Mother Board- A motherboard is the central or primary circuit board making up a complex electronic system, such as a modern computer.

2. CPU- is A central processing unit (CPU), or sometimes simply processor, is the component in a digital computer that interprets computer program instructions and processes data.

3.Power Supply- A computer power supply unit (Computer PSU), or Modular Power Supply Unit (MPS) is the component that supplies power to a computer.

4.Video Display Controller- that produces the output for the computer display. This will either be built into the motherboard or attached in its own separate slot (PCI, PCI-E or AGP), requiring a Graphics Card.

COMPUTER SYSTEM
Mother Board is the central or primary cicuit board making up a complex electronic system, such as a modern compter.

CPU or sometimes simply processor, is the component in a digital computer that interprets computer program instuctions and processes data.



System Unit is the core of a computer system. Usually it's a rectangular box placed on or underneath your desk. Inside this box are many electronic components that process information. The most important of these components is the central processing unit (CPU), or microprocessor, which acts as the "brain" of your computer. Another component is random access memory (RAM), which temporarily stores information that the CPU uses while the computer is on. The information stored in RAM is erased when the computer is turned off.

Hard Disk Drive stores information on a hard disk, a rigid platter or stack of platters with a magnetic surface. Because hard disks can hold massive amounts of information, they usually serve as your computer's primary means of storage, holding almost all of your programs and files. The hard disk drive is normally located inside the system unit.

CD and DVD Drives usually located on the front of the system unit. CD drives use lasers to read (retrieve) data from a CD, and many CD drives can also write (record) data onto CDs. If you have a recordable disk drive, you can store copies of your files on blank CDs. You can also use a CD drive to play music CDs on your computer.

Floppy Disk Drive store information on floppy disks, also called floppies or diskettes. Compared to CDs and DVDs, floppy disks can store only a small amount of data. They also retrieve information more slowly and are more prone to damage. For these reasons, floppy disk drives are less popular than they used to be, although some computers still include them.

Assignment

What is computer hardware and software?

Computer hardware is the physical part of a computer, including the digital circuitry, as distinguished from the computer software that executes within the hardware. The hardware of a computer is infrequently changed, in comparison with software and data, which are "soft" in the sense that they are readily created, modified or erased on the computer.

Computer software, consisting of programs, enables a computer to perform specific tasks, as opposed to its physical components (hardware) which can only do the tasks they are mechanically designed for. The term includes application software such as word processors which perform productive tasks for users, system software such as operating systems, which interface with hardware to run the necessary services for user-interfaces and applications, and middleware which controls and co-ordinates distributed systems.