Apple Macintosh LC - Manual (Page 32)

where you want to insert your text.
4. Choose Paste from the Edit menu.
Close a document 1. Choose Save from the File menu
if you want to save changes you
made to your document.
2. Choose Close from the File menu.
Quit an application 1. Choose Save from the File menu
to save changes you made to an
open document.
2. Choose Quit from the File menu.
CHAPTER 5-PREPARING DISKS FOR USE
So far you have been working mostly with the System Startup disk provided
with your computer. In this chapter you will learn about the various kinds of
disks your Macintosh can use and how to prepare those disks.
To do the exercises in this chapter you will need some blank floppy disks. If
the only disks you have are those that came in the box with your computer,
find some blank disks before you go on with this chapter.
Understanding Hard Disks and Floppy disks
Both hard and floppy disks store information so you and your computer can
have access to it.
Hard disks are sealed inside a disk drive (which in turn may be sealed inside
your computer).
Floppy disks can be inserted into and ejected from a disk drive.
As you have seen, both hard disks and floppy disks show up as icons on your
desktop. You look at, work with, and add to the information on both kinds of
disks in exactly the same way
The major difference between hard and floppy disks is their capacity -- the
amount of information they can hold.
The basic unit for measuring information is the byte. A byte is the amount of
information it takes to represent one character on a disk. Because a byte,
like an ounce or a second, is a very small unit of measurement, it is not
convenient to use bytes to describe how much information fits on a disk. Disk
capacity is measured in two larger units:
- A kilobyte is 1024 bytes and is represented by the abbreviation KB -- or
just K.
- A megabyte is 1024 kilobytes and is represented by the abbreviation MB.
A convenient rule of thumb is that a full page of text takes up roughly four
kilobytes (4K).
Distinguishing Types of Floppy Disks
The most common types of Macintosh floppy disks are 800K disks and 1.4 MB