overpunchn.

Brit.

/ˈəʊvəpʌn(t)ʃ/, U.S.

/ˈoʊvərˌpən(t)ʃ/

Origin: Formed within English, by derivation. Etymons: over- prefix, punch n.¹

Etymology: < over- prefix + punch n.¹

Computing. Now disused.

A hole or hole position in the upper portion of a punched card, used to modify the information coded in the lower portion. Also called zone punch (see zone n. 9).Such a hole may be used to indicate whether a number is negative or positive, or to encode alphabetic characters or other non-numerical data.

ΘΚΠ

society > computing and information technology > hardware > secondary storage > [noun] > punch card or tape > types of hole

overpunch1947

zone1950

1947 Jrnl. Amer. Statist. Assoc. 42 58 It is possible to make zoning for alphabetization inoperative for Y and X over-punches.

1966 Statistician 16 152 Overpunches (the top two positions in any column of the card) are used on many columns to indicate special conditions by means of their presence or absence.

1973 P. W. Murrill & C. L. Smith Introd. Computer Sci. vi. 219 When programs written in programming languages such as Cobol read numerical data, the sign does not normally occupy a separate column. Instead, it is entered as an overpunch in the rightmost digit.

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).

overpunchv.

Brit.

/ˈəʊvəpʌn(t)ʃ/, U.S.

/ˈoʊvərˌpən(t)ʃ/

Origin: Formed within English, by conversion. Etymon: overpunch n.

Etymology: < overpunch n.

Computing. Now disused.

transitive. To mark as an overpunch; to represent by means of an overpunch.

ΘΚΠ

society > computing and information technology > hardware > secondary storage > punch [verb (transitive)]

hole1911

pre-punch1947

overpunch1973

keypunch1975

1953 Jrnl. Amer. Statist. Assoc. 48 813 Control is made possible by over-punching XX, X, Y or nothing to distinguish the variables in each set of four, these punches being ignored by the sorter.

1973 P. W. Murrill & C. L. Smith Introd. Computer Sci. vi. 220 Figure 6·6 also illustrates the situation when the & symbol is overpunched in the same column as the 3.

This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022).

单词	overpunch
释义	overpunchn. Brit. /ˈəʊvəpʌn(t)ʃ/, U.S. /ˈoʊvərˌpən(t)ʃ/ Origin: Formed within English, by derivation. Etymons: over- prefix, punch n.¹ Etymology: < over- prefix + punch n.¹ Computing. Now disused. A hole or hole position in the upper portion of a punched card, used to modify the information coded in the lower portion. Also called zone punch (see zone n. 9).Such a hole may be used to indicate whether a number is negative or positive, or to encode alphabetic characters or other non-numerical data. ΘΚΠ society > computing and information technology > hardware > secondary storage > [noun] > punch card or tape > types of hole overpunch1947 zone1950 1947 Jrnl. Amer. Statist. Assoc. 42 58 It is possible to make zoning for alphabetization inoperative for Y and X over-punches. 1966 Statistician 16 152 Overpunches (the top two positions in any column of the card) are used on many columns to indicate special conditions by means of their presence or absence. 1973 P. W. Murrill & C. L. Smith Introd. Computer Sci. vi. 219 When programs written in programming languages such as Cobol read numerical data, the sign does not normally occupy a separate column. Instead, it is entered as an overpunch in the rightmost digit. This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022). overpunchv. Brit. /ˈəʊvəpʌn(t)ʃ/, U.S. /ˈoʊvərˌpən(t)ʃ/ Origin: Formed within English, by conversion. Etymon: overpunch n. Etymology: < overpunch n. Computing. Now disused. transitive. To mark as an overpunch; to represent by means of an overpunch. ΘΚΠ society > computing and information technology > hardware > secondary storage > punch [verb (transitive)] hole1911 pre-punch1947 overpunch1973 keypunch1975 1953 Jrnl. Amer. Statist. Assoc. 48 813 Control is made possible by over-punching XX, X, Y or nothing to distinguish the variables in each set of four, these punches being ignored by the sorter. 1973 P. W. Murrill & C. L. Smith Introd. Computer Sci. vi. 220 Figure 6·6 also illustrates the situation when the & symbol is overpunched in the same column as the 3. This entry has been updated (OED Third Edition, December 2004; most recently modified version published online March 2022). < n.1947v.1953
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