AQA A2 Computing 2.3 Lists and Pointers Flashcards Preview

AQA A2 Computing > AQA A2 Computing 2.3 Lists and Pointers > Flashcards

Flashcards in AQA A2 Computing 2.3 Lists and Pointers Deck (8)
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1
Q

List

A

A collection of elements with an inherent order.

2
Q

Abstract Data Type (ADT)

A

A data type whose properties are specified independantly of any particular programming language.

3
Q

Pointer

A

A variable that contains an address. The pointer points to the memory location with that address.

4
Q

Null pointer

A

A pointer that does not point to anything.

5
Q

Pointer type

A

A vairable of a pointer that stores an address of a data value.

6
Q

Heap

A

The memory locations available to application programs for dynamic allocation.

7
Q

Dynamic Allocation

A

When memory space is only allocated when requested at run time.

8
Q

Memory leakage

A

When successive calls to allocate memory calls are made, but memory locations that are no longer required are not released. Eventually no memory is left in the heap.