Acorn Risc PC Uživatelský manuál stáhnout pdf (Strana 5)

The advantages of OS in ROM

T

he operating system is contained in

ROM. It is located in two 4Mb ROM

chips. It is very small but at the

same time very powerful, because it

was written especially for the ARM pro-

cessors. This gives it a headstart from

the moment you switch on the com-

puter. In addition, hardly any disk

space is needed for the operating sys-

tem to work, and all the infamous vir-

uses that many people are worried

about cannot affect it. Consequently,

re-installing your operating system to

get rid of any bugs or malfunctioning is

never necessary. All programme de-

signers have kept to the original

concept through the years, which

means a pleasant consistency in

design. Routines that apply in one pro-

gramme apply similarly in another.

The art of multitasking

T

he multitasking capabilities are

among the strong points of the RISC

operating system. No matter wheth-

er one, ten, or fifty programmes are

active at any given moment, whether

there are just three or three hundred

windows open on your screen, operat-

ing speed is hardly affected. On top of

that, the whole system has been so

consistently designed that active pro-

grammes can work together because

they were meant to

do so from the out-

set. This makes for

easy and speedy

action.

The desktop

T

he desktop is

the entire work-

ing area visible

on your screen. It

shows the win-

dows of your pro-

grammes. The

large area occupy-

ing most of the

screen is called

the pinboard. It

can be specially

set up at the click

of a button for any

kind of work envir-

onment that a par-

ticular job requires.

To do this, you

drag and drop all

icons representing

the programmes

that you want to

use to the pin-

board, and save

this constellation

under a suitable

name. In this way,

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RISC OS

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