Table of Contents
What is a typing cursor?
The screen pointer that appears when text can be highlighted or edited. The text cursor is a vertical line (|). Also called a “caret,” “i-cursor” or “I-beam,” it may or may not blink. If the cursor is an arrow or hand, the text cannot be highlighted or changed. See cursor.
Who designed the text cursor?
This little snippet of history was explained recently by Bart Gijssens, a Belgian software developer, writing on Stack Exchange, the site for coders: The mouse, and therefore the mouse cursor, was invented by Douglas Englebart, and was initially an arrow pointing up.
When was the cursor created?
Some 50 years ago, the world’s first mouse cursor was debuted by Douglas Engelbart. In that 1968 demonstration, Mr. Engelbart also debuted the graphical user interface, a means of navigating and using computers through a display.
Where was the cursor invented?
The first computer mouse was conceived of in the early 1960’s by Douglas Engelbart (see biography of Douglas Engelbart), then a Director of Augmentation Research Center (ARC) at Stanford Research Institute (SRI), in Menlo Park, California.
What is cursor and its attributes?
Each cursor has a set of attributes that enables an application program to test the state of the cursor. These attributes are \%ISOPEN, \%FOUND, \%NOTFOUND, and \%ROWCOUNT. This attribute is used to determine whether a cursor contains rows after the execution of a FETCH statement.
Why cursor is used in Oracle?
Cursors are used when the user needs to update records in a singleton fashion or in a row by row manner, in a database table. The Data that is stored in the Cursor is called the Active Data Set. Oracle DBMS has another predefined area in the main memory Set, within which the cursors are opened.
What is the typing line called?
The insertion point—also called a cursor—is the blinking line in your document that indicates where text is inserted when you type.
What is the hand cursor called?
It is also called a pointer, but today pointer refer to a specific cursor, the one that looks like a hand with an extended index finger.
What is the purpose of cursor object?
Cursors are used by database programmers to process individual rows returned by database system queries. Cursors enable manipulation of whole result sets at once. In this scenario, a cursor enables the sequential processing of rows in a result set.
What is the purpose of mouse pointer?
A mouse cursor, also known as a mouse arrow, or mouse pointer, is a graphical image used to activate or control certain elements in a graphical user interface. More plainly, it indicates where your mouse should perform its next action, such as opening a program or dragging a file to another location.
What is the history of mouse?
Doug Engelbart reportedly conceived the mouse during a conference lecture in 1961. His first design, in 1963, used rolling wheels inspired by mechanical area-measuring devices called planimeters invented in the 1800s. Engineers at Germany’s Telefunken also invented a mouse in the mid-1960s.