1/23/02
- Layout of secondary memory (hard disk).
- Tracks- concentrical rings around the platter of disk.
- Sector- conceptual wedge shape on disk. (Can be though of as
a piece of pie).
- Block- the intersection of a track and sector to form a
"block" containing 512 bytes.
- File Allocation Table- (FAT)
- Database that keeps track of all the data stored on a disk.
- Includes file name and address, which is the location
at which the file is located, i.e. block.
- There is a unique address at the beginning of each block.
- Recall the diagram describing data with partially full
blocks.
- When deleting a file, the first character is in the name of
the file on the FAT is replaced with a $.
- This constant process of saving, writing, and deleting file
results in fragmented disks.
- To resolve this, the disk must be defragmented periodically.
- When a file is moved within a drive, the address stored on
the FAT is changed: the data remains in the same spot.
- Microsoft Word
- Global select and change
- For example, if you are typing a document that will require
you to type Syracuse University many times, simply type su, then when the document is
finished, select global select and change, and tell the computer to replace all su with
Syracuse University.
- Symbol library
- Under the insert menu select symbol…
- Style
- Under the Format menu, select the Style… option.
- This allows one to configure the format of the entire
document very easily.
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