LAB 1: COMPUTER SYSTEM

PREPARED BY:

ANNABELLA

(GROUP: 3A)

PREPARED FOR:

MR.LETCHUMANAN S/O SHANMUGAM

COM 2023

COMPUTER SYSTEM FUNDAMENTAL

LAB 1: COMPUTER SYSTEM

INPUT DEVICES

INPUT DEVICES ADVANTAGES DISADVANTAGES

GRAPHICS TABLET

☺ Much more natural to draw

diagrams with the pencil type

implement (the stylus) rather

than with a mouse.

☺ A great level of accuracy

can be achieved

☺ Advanced models detect

subtle changes in pressure, to

enable thicker lines to be draw.

☺ large desk area need

☺ Price is more expensive

☺ Not really suitable for general

selection work such as pointing.

KEYBOARD

☺ Easy to use and more

familiar to enter the text.

☺ Specialist keyboards are

available e.g. ergonomic,

gaming keyboards.

☺ People are used to using

keyboards to enter data, they

need very little training

☺ It is easy to make mistakes

when typing in data

☺ Not suitable for creating

diagrams

☺ If you can't touch type, it can

be time consuming to enter data

SCANNER

☺ Flatbed scanners are very

accurate and can produce

reasonably high quality

images.

☺ Images once digitised can

be enhanced with a graphics

application.

☺ Any image which is

digitised by the scanner can

then be included on electronic

☺ Images produced by the

scanner can take up a lot of

memory space.

☺ Images lose some quality in

the scanning and digitising

process.

☺ The quality of the final image

is dependent on the quality of the

original image.

documents.

OUTPUT DEVICES

OUTPUT DEVICES ADVANTAGES DISADVANTAGES

HEADPHONE

☺ The sound can only be heard

by the user

☺ Probability - lightweight and

easy to carry around

☺ Can listen to music on the

move

☺ Can be uncomfortable

to wear for long periods of

time

☺ If music is played too

loudly or for long periods of

time there is a risk of

permanent heaving loss.

☺ Often not aware of

surrounding noise such as

cars in traffic or people

talking.

PLOTTER

☺ Drawings are of the same

quality as if an expert drew them

☺ Larger sizes of paper can be

used than most printers can

manage

☺ Plotters are faster than other

types of printing machines,

including the desktop printer.

☺ Plotters are slower than

printers because each line is

drawn separately

☺ They are often more

expensive than printers

☺ They do not produce

very high quality text

printouts

LCD / IFT MONITOR

☺ Run very quietly and produce

less heat.

☺ Beneficial energy-saving

measures consume 25 watts to 50

watts.

☺ Take up much less space.

☺ Expensive and Fragile

☺ Easy to broken or

damage

☺ People who stay in front

of monitors for long can

develop heart diseases and

cancer as results of EFL and

microwaves radiation.

PROCESS

PROCESS ADVANTAGES

CORE i7 ☺ Until recent times, core i7 family processors were

the best particularly for extreme 3D gaming,

intensive graphics tasks, multimedia production in

standard computer level. Now, this processor

becomes previous generation CPU, for the reason

that Intel introduced new and improved processors

called 2nd generation Intel® Core™ processors

family.

☺ Multitasking, for running multiple

programs at the same time

☺ Multithreading applications

☺ Extreme 3D gaming

☺ Creating professional movies and

editing graphical tasks

☺ More than enough for basic tasks such as

word processing, internet browsing and e-mail

INPUT Keyboard

PROCESS Ram

OUTPUT Printer

CONCLUSION

A computer system refers to the hardware and software components that run a

computer or computers. Hardware is physical devices that make up a computer, categories of

the hardware is Input devices provide input to a computer, while output devices provide a way

for a computer to output data for communication with users or other computers. Good

examples of input/output devices are a floppy diskette drive, CD-R/RW drives, Modem, USB

thumb drives, and a hard drive. Meanwhile, software is set of instruction that hardware

executes to carry out a specific task for you, category of software is application software and

system software. Example of output is speaker, headphone, monitor, and plotter.

Alternatively referred to input and Output device is a hardware device that accepts

inputted information and also has the capability of outputting that information. Each computer

connected to the system can operate independently, but has the ability to communicate with

other external devices and computers.