Major Components of a Computer System

HARDWARE

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. Firmware is a special type of software that rarely, if ever, needs to be changed and so is stored on hardware devices such as read-only memory (ROM) where it is not readily changed (and is, therefore, "firm" rather than just "soft").

SOFTWARE

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.

PEOPLEWARE

It is the term which actually used to name the people behind the softwares and hardwares. They can be also the programmers, technicians, or the ones who's using the computers.

CSCI01- EF Prelim Exam

I'm Jemimah Pamela A. Goc-ong. I'm 17 years of age living at Green Meadows Subd. Tugbok Dist. Mintal, Davao City. I was born on March 23, 1990 in the land of promise- Davao. Everyone call me -jemz-, so you can call me like that too. My parents are Leo Goc-ong and Rose Goc-ong. I only have one sibling and she's a girl. Her name is Keziah Mae.

Most first impression of people to me is that I am not friendly and "masungit". But I'm not. I am friendly and I love to have a lot of friends around me willing to help me in the times I needed them most. I love to surf the net and play online games together with Jessa, Lala and Cris. Others tell me that I'm intelligent but I'm not like that. I just study the things that was discussed and that's it! My score depends on my luck! Hahahaha..^^

When I was in my elementary years, I was studying in DCLC and MILC. In my high school years, I was in DRANHS and for now, still in my college years, I'm pursuing BS Computer Engineering in AMACC Davao. I want to be a successful computer engineer someday working abroad to earn money and give some to my family. I have a lot of dreams to achieve and for now, all I can do is to study hard and get high grades!


____C++ Code and It's Output____

# include
#include
main()
{
int wat, a;
float far;
printf("Enter temperature in Celcius:");
scanf("%d", &a);
far=9*a/5+32;
wat=a+273;
printf("\n\nFahrenheit=%.2f", far);
printf("\n\nKelvin=%d", wat);
getch();
}

OUTPUT

Enter temperature in Celcius: 25

Fahrenheit: 77.00

Kelvin: 298

Computer Hardware and Software

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.

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. Firmware is a special type of software that rarely, if ever, needs to be changed and so is stored on hardware devices such as read-only memory (ROM) where it is not readily changed (and is, therefore, "firm" rather than just "soft").

Exercise 2

COMPUTER SYSTEM- is a combinatin of software and hardware

---HARDWARE---

__CPU- Central Processing Unit__ The processor chip that runs your computer.

__RAM- Random Access Memory__ The part of the computer that temporarily holds a program and related files and manipulates data (non permanent).

---PERIPHERALS---

INPUT DEVICES

__Keyboard__ Keyboards are designed for the input of text and characters and also to control the operation of a computer.

__Mouse__ A mouse functions as a pointing device by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of a small case, held under one of the user's hands, with one or more buttons.

__Scanner__ Scanner is a device that analyzes images, printed text, or handwriting, or an object (such as an ornament) and converts it to a digital image. Most scanners today are variations of the desktop (or flatbed) scanner.

OUTPUT DEVICES

__Monitor__ Monitor is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record.

__Printer__ Printer produces a hard copy (permanent human-readable text and/or graphics) of documents stored in electronic form, usually on physical print media such as paper or transparencies.

__Speakers__ Speakers are external speakers, commonly equipped with a low-power internal amplifier. The standard audio connection is a 3.5mm (1/8 inch) stereo jack plug often colour-coded lime green, following the PC 99 standard) for computer sound cards.

STORAGE DEVICES

__Hard Drive__ Hard drive a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces.

__Floppy Drive__

__Zip Drive__ Zip drive is a medium-capacity removable disk storage system, introduced by Iomega in late 1994. Originally it had a capacity of 100 MB, but later versions increased this to first 250 MB and then 750 MB.

__CD-ROM__ CD-ROM is a Compact Disc that contains data accessible by a computer. While the Compact Disc format was originally designed for music storage and playback, the format was later adapted to hold any form of binary data. CD-ROMs are popularly used to distribute computer software, including games and multimedia applications, though any data can be stored (up to the capacity limit of a disc).

Bachelor of Science in Computer Engineering