CushionTheBlow (구 BluemoonSoft)

Customer-premises equipment or customer-provided equipment (CPE) is any terminal and associated equipment and inside wiring located at a subscriber's premises and connected with a carrier's telecommunication channel(s) at the demarcation point ("demarc"). The demarc is a point established in a building or complex to separate customer equipment from telephone company equipment.

CPE generally refers to telephones, DSL modems or cable modems, or purchased set-top boxes for use with Communications Service Providers' services. Also included are key telephone systems and most private branch exchanges. Excluded from CPE are overvoltage protection equipment and pay telephones.

Cellular carriers may sometimes internally refer to cellular phones a customer has purchased without a subsidy or from a third party as Customer Provided Equipment.

It is also notable that the Fully qualified domain name of DSL and cable lines connected to a residence will often be prefixed with 'cpe'.

Reference:
http://en.wikipedia.org/wiki/Customer-premises_equipment

A key system or key telephone system is a multiline telephone system typically used in small office environments.

Key systems are noted for their expandability and having individual line selection buttons for each connected phone line, however some features of a private branch exchange such as dialable intercoms may also commonly be present.

Key systems can be built using three principal architectures:

Electromechanical shared-control
Electronic shared-control
Independent keysets

Reference:
http://en.wikipedia.org/wiki/Key_telephone_system

In computer science, merge sort or mergesort is an O(n log n) comparison-based sorting algorithm. It is stable, meaning that it preserves the input order of equal elements in the sorted output. It is an example of the divide and conquer algorithmic paradigm. It was invented by John von Neumann in 1945.

Algorithm
Conceptually, merge sort works as follows:

Divide the unsorted list into two sublists of about half the size
Divide each of the two sublists recursively until we have list sizes of length 1, in which case the list itself is returned
Merge the two sublists back into one sorted list.
Mergesort incorporates two main ideas to improve its runtime:

A small list will take fewer steps to sort than a large list.
Fewer steps are required to construct a sorted list from two sorted lists than two unsorted lists. For example, you only have to traverse each list once if they're already sorted.

Reference:
http://en.wikipedia.org/wiki/Merge_sort

제어판 -> 관리 도구 -> 컴퓨터 관리

컴퓨터 관리(로컬) -> 디스크 관리

원하는 볼륨을 선택하고 마우스 오른쪽 버튼을 클릭한다.

드라이브 문자 및 경로 변경(C)을 선택한다.

A windowing system (or window system) is a graphical user interface (GUI) which implements windows as one of its primary metaphors. It is normally one part of a larger desktop environment.

From a programmer's point of view, a windowing system implements graphical primitives such as rendering fonts or drawing a line on the screen, effectively providing an abstraction of the graphics hardware.

A windowing system enables the computer user to work with several programs at the same time. Each program runs in its own window, which is an area of the screen, typically a rectangle. Most windowing systems allow windows to overlap, and provide means for the user to perform standard operations such as moving/resizing a window, sending a window to the foreground/background and minimizing/maximizing a window.

Some windowing systems, like the X Window System, have advanced capabilities such as network transparency, allowing the user to display graphical applications running on a remote machine. Further, the X Window System does not implement any specific policy regarding the look and feel of the graphical user interfaces, leaving that to the X window managers, widget toolkits and desktop environments.

Reference:
http://en.wikipedia.org/wiki/Windowing_system

Network Transparency in its most general sense refers to the ability of a protocol to transmit data over the network in a manner which is transparent (invisible) to those using the applications that are using the protocol.

The term is often applied in the context of the X Window System which is able to transmit graphical data over the network and integrate it seamlessly with applications running and displaying locally.

Reference:
http://en.wikipedia.org/wiki/Network_transparency

The folders and the file cabinet representation of the file system of an operating system is an example of Interface metaphor. Another example is the tree view representation of a file system, as in Windows Explorer, that helps a user to intuitively use it.

Reference:
http://en.wikipedia.org/wiki/Interface_metaphor