ICT(51-100/200)

A monitor is primarily which kind of device?

• An output device

• An input device

• A memory device

• A storage device

The speed of a computer bus is measured in _____, whereas the transfer rate is measured in _____.

• hertz, Bps

• Bps, hertz

• bits, channels

• channels, bits

Computer output devices include which of the following?
I.Projector
II.Microphone
III.Printer

• I and III only

• II and III only

• I, II, and III

• I and II only

Which of the following correctly represents the layers of software in a computer system (from lowest level to highest level of abstraction)?

• BIOS, Operating System, Application Program Interface, Runtime Library, Application, User Interface 

• BIOS, User Interface, Operating System, Application, Runtime Library, Application Program Interface 

• Operating System, BIOS, Runtime Library, Application Program Interface, User Interface 

• BIOS, Operating System, Application, Runtime Library, User Interface, Application Program Interface

Input devices for a computer include which of the following?
I.Digital cameras
II.Scanners
III.Speakers

• I and II only

• III only

• I and III only

• I, II, and III

Which of the following statements is true? 

• CMOS stores configurations. 

• RAM is slower than ROM. 

• Initially, when the computer is turned on, only the operating system can be found in the RAM

• Private files are protected by the BIOS. 

Which of the following best describes preemptive multitasking? 

• A real-time clock generates interrupts during which other processes may be executed.

• Multiple CPUs concurrently execute processes in parallel. 

• As soon as a process has completed execution, the execution of another process begins. 

• The CPU switches between processes after executing each instruction. 

Which of the following operations cause(s) a fault to occur?  
I. The hardware is asked to do something it cannot do.  
II. The memory's error correction circuitry detects an uncorrectable error. 
III. The program attempts to execute an illegal machine instruction. 

• I, II and III

• I only

• I and III only

• III only

Encapsulation is:

• when each layer needs only a limited amount of knowledge to do its job

• Organizing software into layers that are relatively dependent 

• when all layers should be connected

• about how software layers communicate

Hardware is:

• lowest level of the computer

• most primitive level of software

• used by Operating systems to control a device

• performs functions that are critical to maintaining the operating system