Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
26 Cards in this Set
- Front
- Back
|
Give 4 functions of the operating system |
-Manage hardware components -Provide User Interface -Provide structure for file management -Provide a platform for application software to operate -Provide built-in utility programs |
|
|
What are the 2 options for installing new devices? |
->Plug & Play (Component can be used as soon as the device is connected) -> Hot Swappable (Component can be connected without switching off the computer) |
|
|
What is a device driver? |
Software program that enable the operating system to communicate with connected hardware devices |
|
|
When device driver is loaded what two computer resources does the operating system allocated? |
-Interrupt Request (IRQ) -Direct Memory Access (DMA) |
|
|
What is an IRQ? |
A unique number to the device which identifies and orders the way the CPU will process the instructions sent from that device |
|
|
What is a DMA |
Method of transferring data directly to the computers RAM, from a device, without the CPU having to process the instructions. |
|
|
Disk Cache |
|
|
How to improve efficiency of input and output |
Caching (Faster device is used to temporarily store the data that is to be accessed from a slower device) |
|
|
Give two more way to improve the performance and efficiency of input and output devices. |
-Spooling -Buffering |
|
|
What is spooling? |
A process in which data is temporarily stored in secondary storage until the device is ready to process the data |
|
|
What is buffering? |
Process of temporarily storing data in RAM intended for a device while processing other data. |
|
|
What is a backup? |
A copy of data that can be used to restore the original data if the data was lost or damaged |
|
|
What is an archive? |
Data that is kept for long-term retention and future reference |
|
|
What us Commercial or Proprietary Software? |
Copyrighted software developed, usually by a commercial company, for sale to users. |
|
|
What is a EULA |
End of User License Agreement --> legal agreement between developer and user of the software |
|
|
Give 6 types of Commercial Software licensing models |
-Freeware -Shareware -Perpetual license -Subscription license -Consumptive license -Open Source Software |
|
|
Define: Perpetual License |
Software with non-expiring license |
|
|
Define: Subscription license |
Software with renewable license |
|
|
Define:Consumptive License |
License with cost based on the users usage |
|
|
Define: Shareware |
Copyrighted software that the user can use of a trial basis before paying |
|
|
Define:Freeware |
Copyrighted software that a user can freely download, install, use and share |
|
|
Define: Open Source Software |
Software that a user can download, with its source code, to install, use ,inspect, modify, enhance and share. |
|
|
Difference between minimum and maximum recommended requirements for software. |
Minimum requirements are "have to have" specifications as the software will not run without them. Recommend requirements are "should have" specifications because the software will have better usability is these are met. |
|
|
What is a patch? |
A small piece of software published by the developer that is designed to fix a specific error or bug or flaw in their software program |
|
|
What is a service pack? |
Collection of patches for a specific software program. |
|
|
Which software packages are available to assist with disabled users? |
-Screen Readers -Voice Recognition Software -Zoom Tool -Predictive Text -Sticky Keys |
