what is a pointer computer sceince
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Pointer (computer programming) In computer science, a pointer is a kind of reference. A data primitive (or just primitive) is any datum that can be read from or written to computer memory using one memory access (for instance, both a byte and a word are primitives).owever, pointers to managed memory (any pointer to a managed object) must be declared using the fixed keyword, which prevents the garbage collector from moving the pointed object as part of memory management while the pointer is in scope, thus keeping the pointer address valid.
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- Cursor definition, Digital Technology. a movable, sometimes blinking, symbol that indicates the position on a display screen where the next character entered from the keyboard will appear, or where user action is needed. 2. a sliding object, as the lined glass on a slide rule, that can be set at any point on a scale. Origin of cursor.
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- Touchpads, trackballs and many others may serve as pointing devices as well.     Using simpliest terms, a pointing device is a device that gives you control over an on-screen pointer in window systems.
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Pointer Events & Disabling Current Page Links Pointer Events & Disabling Current Page Links. It is a long-standing web design standard that the logo in the header area links to the homepage of the site. Another standard is that when displaying the navigation of a site, to highlight in some way the current page, if it is present in the navigation. I think those are great standards.
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mouse )A device that controls the movement of the cursor or pointer on a display screen. A mouse is a small object you can roll along a hard, flat surface.
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Network Plus C5Q NC A DNS server uses many types of records. An A record is a hostname to IP address record and a pointer record is an IP address to hostname record. Users on your network are saturating your bandwidth because they are using too many nonwork related sites.
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What are the Name of mouse pointer shape and functions? The upper-left pointing arrow pointer is a general-purpose pointer. It is used in most window areas for single-object selection and activation. The hotspot for the arrow pointer should be in the point of the arrow.You can optionally use an I-beam pointer in any Text component. It is used to change the location of the text insertion cursor and to perform actions on text.
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Pointer (computer programming) The syntax for C with pointers is: 1  array means 0x1000; 2  array + 1 means 0x1004: the + 1 means to add the size of 1 int, which is 4 bytes; * 3 array means to dereference the contents of array. Considering the contents as a memory address (0x1000), look up the value at that location (0x0002);
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shortcut A shortcut is a special type of file in some operating systems that points to another file or device. You can place shortcuts on the desktop to conveniently access files that may be stored deep in the directory structure. Double-clicking the shortcut icon is the same as double-clicking the actual file. You can control how a shortcut appears by naming it anything you want and associating a particular icon with it.
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Pointer (computer programming) A based pointer is a pointer whose value is an offset from the value of another pointer. This can be used to store and load blocks of data, assigning the address of the beginning of the block to the base pointer.
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Computer Mouse The computer mouse is an accessory to the personal computer that has become an essential part of operation of the computer. The small device fits neatly in the curve of the user's hand and enables the user, through very limited movements of the hand and fingers to point and click instructions to the computer.
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Make the Mouse Track Faster or Slower The Mouse Properties dialog box is displayed. Click the Pointer Options tab in the Mouse Properties dialog box. The Pointer Options tab contains a slew of useful tools for dealing with the mouse pointer in Windows. Use the slider gizmo below Select a Pointer Speed to throttle the mouse pointer on the screen.
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Computer Many sophisticated software programs need not only a keyboard but also a pointing device to enter information into the computer. When you move the pointing device, an arrow appears. You can point and click the arrow on various buttons that appear on the screen.
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- Scavenger Hunt: Computers Worksheet. 1  The keyboard, mouse, and modem are input devices. The monitor, printer, and modem are output devices. 2  The computer hard disk is for long-term storage. 3  DOS stands for disk operating system.. . 4 gif identifies a graphic file or picture. 5  In computer language, cd\ means change directory to root..
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Null pointer Because a null pointer does not point to a meaningful object, an attempt to dereference (ie. access the data stored at that memory location) a null pointer usually (but not always) causes a run-time error or immediate program crash. 1  In C, the behavior of dereferencing a null pointer is undefined.
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- Touchpad A touchpad or trackpad is a small flat rectangular pointing device from COMPUTER S SMA 2274 at Multimedia University of Kenya
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Tooltip The tooltip or infotip or a hint is a common graphical user interface element. It is used in conjunction with a cursor, usually a pointer. The user hovers the pointer over an item, without clicking it, and a tooltip may appear—a small hover box with information about the item being hovered over. Tooltips do not usually appear on mobile operating systems, because there is no cursor (though tooltips may be displayed when using a mouse).
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- Why is the mouse often called a pointing device?   This is because the mouse icon on screen is often an arrow, and in computer jargon the user points at a part of the screen. Pointing is done by moving the mouse unti…l the tip of the arrow on screen is at the desired place, such as a menu title.
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- A pointer type is a scalar type; so a pointer is single, indivisible object, with no parts. The value of the pointer is the address. The size of a pointer is the size needed to represent the address. The pointer may point to an array, but whatever the pointer points to is not the value of the pointer. Now it's true that an array can be implicitly converted into a pointer to its first element.
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- a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad. hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad.
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Computer mouse A mouse typically controls the motion of a pointer in two dimensions in a graphical user interface (GUI). The mouse turns movements of the hand backward and forward, left and right into equivalent electronic signals that in turn are used to move the pointer.
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How To Assemble A Desktop PC/Choosing the parts Central processing unit; the brain of the computer; controls the other elements of the computer. Disk Drive. A peripheral device that reads and/or writes information on a disk. Hard Drive. A device (usually within the computer case) that reads and writes information, including the operating system, program files, and data files. Keyboard. A peripheral used to input data by pressing keys. Modem. A peripheral device used to connect one computer to another over a phone line.
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- Global/Static pointers. One way to make sure our objects are not garbage collected by keeping a reference to them in a static variable. Pointers on the stack. We don't want to throw away what our application's threads still need in order to execute.
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Tooltip The tooltip or infotip or a hint is a common graphical user interface element. It is used in conjunction with a cursor, usually a pointer.
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Optical mouse An optical computer mouse uses only a light source, typically a laser, and a light detector, such as an array of photodiodes, to detect movement relative to a surface. It is an alternative to the mechanical mouse, which uses moving parts in addition to solid-state electronics to perform the same function.
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mouse A mouse is a small device that a computer user pushes across a desk surface in order to point to a place on a display screen and to select one or more actions to take from that position. The mouse first became a widely-used computer tool when Apple Computer made it a standard part of the Apple Macintosh. Today, the mouse is an integral part of the graphical user interface (GUI) of any personal computer. The mouse apparently got its name by being about the same size and color as a toy mouse.