Elenco Electronics MO-1251 Manual de usuario descargar pdf (Pagina 72)

100

Of course

there's no software

for it now,

but Microsoft, Aldus

(PageMaker), and

Micrografx (De-

signer) are working feverishly

get new

versions of

their prod-

ucts out

the door. Interestingly,

however, it

appears that Borland

will

beat them with

PM version

of SideKick Plus.

addition, like

the character -

based version

of OS /2, special

features

of the 386 go sadly un-

used. That means

there's still

support for only one DOS

ses-

sion, and that it won't run in

window.

Hardware

support is also lim-

ited. Few printers

and

fewer

dis-

play adapters are

supported

(although

IBM will release more

drivers shortly), and PM itself is

much more

selective about the

hardware

it will run

on.

In fact,

most of the non -IBM AT

compati-

bles I

had

the office wasn't able

to get

through

the installation

process.

My AST Premium/286,

which runs

IBM's version of OS /2

1.0 fine,

couldn't even get

through the PM installation pro-

gram without rebooting,

and

had to trick the install program

to complete installation on a Dell

System 300.

In spite

those gripes, there's

something about PM that's high-

ly appealing. For one, it's

like a

grown -up version of Windows.

It's

got a new screen -oriented file

manager

that

makes copying,

moving, creating, and

deleting

files and

subdirectories easy -

better than the

typical

DOS

shell,

in fact.

For purposes

of testing,

I in-

stalled

on Compaq's new

SLT

/286,

a battery- powered 12-

MHz

AT-compatible that has the

first VGA -compatible screen in a

laptop. The machine

had a 40MB

hard disk and 2.6MB

RAM. I

drove an NEC MultiSync monitor

through the

SLT

/286's

external

VGA port.

PM comes on five 1.44MB flop-

py disks. You boot from one; it

copies a minimal system to your

hard disk. Then you boot from

the hard disk; an automatic pro-

cess

prompts you to

insert the

remaining floppies one

one

it copies

each

the

hard disk.

After installation, PM comes up

with

a Start Programs

menu in

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the

center of the screen,

and

three

icons along the bottom.

Those icons allow access

to DOS,

a print spooler,

and PM's task

manager. You make the

process

represented by an icon the

active

one by double

-clicking on the

icon.

As its name suggests,

the Start

Programs

menu allows you

run a program.

Programs

are or-

ganized in groups;

PM comes

with two groups:

Main and Util-

ity. The Main

group includes

File

System (the

file manager), a tu-

torial

called Introducing

/2, a

full- screen OS

/2 command -line

prompt, and

a windowed OS

prompt. The Utility group

in-

cludes the Control

Panel (for set-

ting time,

date, and

mouse

preferences), CHKDSK,

FORMAT,

and the OS

System

Editor.

(Yes!

/2 now includes

a protected -

mode

editor! It's a full

-screen edi-

tor

that's better than

EDLIN, but

that's the best you

can say about

it.) Of course,

you can add

your

own groups and programs

to the

Start

Programs menu.

The task manager

allows you to

switch

among active processes.

In the default

configuration,

that

allows you

to switch

among the

DOS command

prompt, the Start

Programs

menu, and the print

spooler manager.

Of course,

you start

more programs,

their

names are added

to the Task

Manager's

list. You

can call the

Task up at any

time by pressing

Ctrl -Esc.

The

Task Manager

also adds

one

item sorely

missing

from

Windows:

the ability

to arrange

the

currently

active processes

screen,

in either

cascade

(over-

lapping) or

tiled (non-

overlap-

ping)

form. With

Windows,

contrast, you

have to

size and

place each

window manually.

PM also includes

an extensive

on -line help

system that does a

good job of teaching

you about

and

reminding you of the basics

using the system.

The File System

displays a

graphic

representation of your

hard disk's structure.

'lb log into

a particular subdirectory,

just

click on

with

the mouse.

A win-

dow opens

that shows.each

file in

that

directory. You

can list all

files, programs

(BAT, COM,

EXE)

only,

or data files only;

you can

further qualify

the list by

file at-

tribute; you can sort

the list by

name, extension,

date and time,

or by size; you

can display just

file

names, or

complete file

info (size,

time and date of

last modifica-

tion, and file

attributes).

PM provides several

ways of se-

lecting one

or more files or

com-

plete subdirectories;

after select-

ing, you can

copy, move, or delete

any one of them

with a few quick

mouse

motions.

What

good is

It?

Right

now, not much.

But nei-

ther

was MS -DOS

1.0 in

1981. It's

going to take

some time,

maybe

even longer than

it took

DOS to

overtake CP/M;

but

it will, even-

tually.

For now, however,

because

of high RAM prices

and

lack of

applications,

PM is the

most ex-

pensive DOS shell

available.«

A Pair From

Prentice Hall

Books that

provide

a balance

detailed

hardware

and soft-

ware

information

are

hard to

come

by; Jeffrey

P Royer's

Hand-

book

of Software

and

Hardware

Interfacing

for IBM

PCs attempts

bridge the gap.

The

Handbook

well written

and

clearly

illus-

trated; it

includes more

informa-

tion on

PC hardware

and

less

BIOS

and DOS

than

Peter

Nor-

ton's

guide.

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