Reading. Read the text and try to guess the meaning of the words in bold. Check your variants in the dictionary.
FILE BASICS
A computer file – or simply a “file” – is defined as a named collection of data that exists on a storage medium, such as a disk, CD, DVD, or tape. A file can contain a group of records, a document, a photo, music, a video, an e-mail message, or a computer program. Computer files have several characteristics, such as a name, format, location, size, and date.
Every file has a name and might also have a file extension. When you save a file, you must provide a valid file name that adheres to specific rules, referred to as file-naming conventions. Each operating system has a unique set of file-naming conventions. Figure 4 lists the file-naming conventions for the current versions of Windows.
Case sensitive
|
No
|
Maximum length of file name
|
File name and extension cannot exceed 255 characters
|
Spaces allowed
|
Yes
|
Numbers allowed
|
Yes
|
Characters not allowed
|
* \ : < > | " / ?
|
File names not allowed
|
Aux, Com1, Com2, Com3, Com4, Con, Lpt1, Lpt2, Lpt3, Prn, Nul
|
Fig. 4: Windows File-naming Conventions
DOS and Windows 3.1 limited file names to eight characters. With that limitation, it was often difficult to create descriptive file names As a result, files were sometimes difficult to locate and identify. Today, most operating systems allow you to use long file names.
Current versions of Windows support file names up to 255 characters long. That limitation includes the entire file path sometimes called a file specification—drive letter, folders, file name and extension.
Достарыңызбен бөлісу: |