| 1.The ( ) turns the object file into an executable program. |
|
|
| 2.Insufficient （ ） can cause a processor to work at 50% or even more below its performance potential. |
|
|
| 3.Single program operating systems allow ( ) user(s) to run ( ) program(s) at one time. |
|
|
| 4.（ ）：An error can be caused by attempting to divide by 0. |
|
|
| 5.The user must interact with the （ ） in order to accomplish task. |
|
|
| 6.Every valid character in a computer that uses even （ ） must always have an even number or 1 bits. |
|
|
| 7.All modern （ ） are multitasking and can support running several processes simultaneously. |
|
|
| 8.A （ ） consists of the symbols,characters, and usage rules that permit people to communicate with computer. |
|
|
| 9.As an operating system repeatedly allocates and frees storage space , many physically separated unused areas appear. This phenomenon is called （ ） . |
|
|
| 10.（ ） is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC. |
|
|
| 11.Computer systems consist of two very different types of elements: Hardware, which includes all the physical things that can be touched and （ ） , which tells the hardware how to do . |
|
|
| 12.Very long, complex expressions in program are difficult to write correctly and difficult to （ ） . |
|
|
| 13.( ) is a fast and powerful operating system, based on the UNIX O.S. |
|
|
| 14.To document your code can increse program （ ） and make program easier to maintain . |
|
|
| 15.The（ ）is a collection of modules serving as interface between hardware and software to provide a software platform. |
|
|
| 16.( ) is not the basic hardware component of computers. |
|
|
| 17.The two goals of an operation system are （ ） and efficiency. |
|
|
| 18.When saving a document you must decide on a name for the document and the （ ） where it will be saved to. |
|
|
| 19.（ ） is the foundation on which applications are built. |
|
|
| 20.（ ）：The process of identifying and correcting errors in a program. |
|
