| 1.Single program operating systems allow ( ) user(s) to run ( ) program(s) at one time. |
|
|
| 2.The most important program on any computer is ( ). |
|
|
| 3.The user must interact with the （ ） in order to accomplish task. |
|
|
| 4.（ ） is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC. |
|
|
| 5.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 . |
|
|
| 6.Insufficient （ ） can cause a processor to work at 50% or even more below its performance potential. |
|
|
| 7.( ) is a fast and powerful operating system, based on the UNIX O.S. |
|
|
| 8.( ) is an operating system that was initially created as a hobby by a young student. |
|
|
| 9.The（ ）is a collection of modules serving as interface between hardware and software to provide a software platform. |
|
|
| 10.The two goals of an operation system are （ ） and efficiency. |
|
|
| 11.As an operating system repeatedly allocates and frees storage space , many physically separated unused areas appear. This phenomenon is called （ ） . |
|
|
| 12.( ) allow more than one program to be run at the same time on the computer. |
|
|
| 13.A （ ） consists of the symbols,characters, and usage rules that permit people to communicate with computer. |
|
|
| 14.（ ）：An error can be caused by attempting to divide by 0. |
|
|
| 15.( ) drives can erase and store data. |
|
|
| 16.To document your code can increse program （ ） and make program easier to maintain . |
|
|
| 17.When a program has no syntax errors, the compiler finishes ( ) the program, the source code, and generates an object code file. |
|
|
| 18.The ( ) turns the object file into an executable program. |
|
|
| 19.Programs written in all other kinds of languages are translated into ( ) before they are performed. |
|
|
| 20.Every valid character in a computer that uses even （ ） must always have an even number or 1 bits. |
|