delete

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delete

(operating system)
(Or "erase") To make a file inaccessible.

Usually this operation only deletes information from the tables the file system uses to locate named files; the file's contents still exist on disk and can sometimes be recovered by scanning the whole disk for strings which are known to have been in the file. Files created subsequently on the same disk are quite likely to reuse the same blocks and thus overwrite the deleted file's data permanently.

delete

(character)
The control character with ASCII code 127. Usually entering this character from the keyboard deletes the last character typed from the input buffer. Sadly there is great confusion between operating systems and keyboard manufacturers as to whether this function should be assigned to the delete or backspace key/character.

The choice of code 127 (binary 1111111) is not arbitrary but dates back to the use of paper tape for input. The delete key rewound the tape by one character and punched out all seven holes, thus obliterating whatever character was there before. The tape reading software ignored any delete characters in the input.

delete

To remove an item of data from a file or to remove a file from the disk. See Del, file wipe, trash and undelete.
References in periodicals archive ?
Caption: Common loss Researchers used DNA deletions to trace relationships among human groups by region.
1p36 Deletion Syndrome is not yet on the pre-approved list for government support the way other chromosome disorders, such as Down Syndrome, is.
Second, we do not have a set of control firms to ensure that we are capturing the pure effect of additions and deletions from the index.
Previous studies in this country have identified deletions in 50% (30/60) of affected boys, using the Southern blotting technique, [11] 42% (46/110) of affected boys using Southern blotting together with mPCR, [12] and 57% (39/68) of affected boys using the Chamberlain and Beggs mPCR approach.
We also used the MLPA technique to assess the NF1 copy number status of both samples with constitutional and somatic deletions.
Each FISH assay included normal lung tissue sections as a negative control, and sections of non-small cell lung carcinoma previously identified as carrying p16 deletion as a positive control.
Another request was made on September 28, 2010 to remove a personal folder, and the most recent request was made on June 29, 2011, when News International asked for deletion of "certain bad or corrupted files".
A total of 200 men, including 100 patients with non-obstructive azoospermia and 100 fertile controls, were analyzed for the presence of submicroscopic Y chromosome deletions.
The occurrence of these 4 deletions might be explained as a stepwise accumulation from subgroup 2 to subgroup 4.
They found evidence that several rare deletions may promote obesity, including one kind they studied further and found in less than 1 percent of about 1,200 severely obese children.
They found identical deletions with exactly the same boundaries in five autistic boys.