www.ustudy.in

Introduction

A computer is a group of interdependent

items that interact regularly to perform a

task.

A computer system refers to the hardware

and software components that run a

computer or computers.

www.ustudy.in

www.ustudy.in

Operating systems

An operating system (commonly

abbreviated OS and O/S) is an interface

between hardware and applications.

The operating system acts as a host for

applications that are run on the machine.

www.ustudy.in

www.ustudy.in

System Types

• The system can be classified as the

following two types

• Desktop Systems

• Laptop Systems

www.ustudy.in

Desktop Systems

• A computer designed to fit comfortably

on top of a desk, typically with the

monitor sitting on top of the computer.

• Desktop models designed to be very small

are sometimes referred to as slim line

models.

www.ustudy.in

www.ustudy.in

Specifications• Processor - Intel Core Duo 3.0 GHZ

processor

• Memory - 2 GB RAM

• Fixed Disk - 160 GB SATA hard drive

• Optical Drive - DVD+/-RW optical drive

• Network Adapter - Integrated ethernet adapter

www.ustudy.in

• Operating System - Microsoft WindowsXP

• Monitor - 19” flat-panel LCD

• Keyboard - USB keyboard

• Mouse - USB optical mouse

• Sound System - Integrated Sound

www.ustudy.in

Advantages

• Cost

• Speed

• Cheaper and easier to repair

• Less easy to damage

• Difficult to steal than a laptop computer

www.ustudy.in

Disadvantages

• It is very complicated with many cords to have to deal with.

• A desktop is not very portable.

• It can be used by only one person at a time.

www.ustudy.in

Laptop Systems

• A laptop computer is a personal computer

designed for mobile use  that is small enough to

sit on one's lap.

• A laptop integrates all of the typical components

of a desktop computer, including a display, a

keyboard a pointing device and a battery into a

single portable unit. www.ustudy.in

Specification

• CPU - Intel Mobile Pentium 4-M 1.7

GHz processor

• Memory - 256 MB RAM

• HDD - 40 GB removable

• FDD - External USB Supply

• I/O Port - Serial, USB, DC input,

DVI – I

www.ustudy.in

• AC adapter - Universal AC adapter

• Audio - AC 97 audio support

Built-in speaker

• Keyboard - Full GWERTY, full sealed

keyboard

• Display - 12.1” X GA LCD Touch

panel or 13.3” LCD touch

panelwww.ustudy.in

Advantages

• A laptop can be used in many places – not only at home and at the office.

• Up-to-date information

• Connectivity

• Laptops are smaller than standard PCs

www.ustudy.in

Disadvantages

• Laptops are more expensive than desktop PCs at the same or even lower performance level.

• Being valuable, common and portable, laptops are to be theft easily.

www.ustudy.in

Desktop vs. Laptop Desktop Laptop

A desktop system usually consists of multiple separate components like the CPU, monitor, keyboard and mouse.

A laptop is a small, self-contained computer.

Desktops and their associated equipment are heavy.

Laptops are generally light and easy to carry around.

A desktop means you've got a lot of separate pieces making up your system.

Small size means you can easily throw it into a bag or carrying case and go.

www.ustudy.in

The End

….. Thank you …

www.ustudy.in