( ) is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC.

[单选题]is permanently stored in the computer and provides a link between the hardware and other programs that run on the PC.A．InterfaceB．Operating systemC．InternetD．Application software

[单选题]A computer virus is a computer program that is created to make and spread (72) of itself.(72) A．programsB．virusC．copiesD．files

[单选题]Tile hardware are the parts of computer itself including the(71)(CPU)and related microchips and micro -circuitry, keyboards, monitors, case and(72)(including floppy, hard, CD, DVD, optical, tape, etc...). Other extra parts called(73)or devices includ

[单选题]C．omputer hardware engineers research, design, develop, and test computer hardware and supervise its manufacture and(73). Hardware refers to computer(74), circuit boards, computer systems, and related equipment such as keyboards, modems, and printers

[名词解释] 计算机硬件（Computer hardware）

[单选题] (73) provides a data path between the CPU and external devices.(73)A． KeyboardB． I/O portC． DiskD． Printer

[单选题]provides a data path between the CPU and external devices.A．KeyboardB．I/O portC．DiskD．Scanners

[单选题]It is essential that the program ____________ be loaded into computer.A.sho

[单选题]A radio link between a transmitting earth station and a receiving earth station through one satellite is named a（）.A . Radio linkB . Space segmentC . Satellite linkD . upper link

[单选题]H．ad I known about this computer program, a huge amount of time and energy .A．would have been savedB．had been savedC．will be savedD．was saved