专英
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1. Explain the five parts of an information system .What part do people play in this system?
People Procedures Software Hardware Data
2. Describe the different types of computers. What is the most common type? What are the types of microcomputers?
Supercomputers, Mainframe computer, Minicomputers, Microcomputer,
3. Explain the difference between general-purpose applications.
System software focuses on handling technical details. Application software focuses on completing specific tasks or applications.
4. What is the difference between an integrated package and a software suite? What are the advantages and disadvantages of each?
An integrated package is a single program that provides the functionality of a word processor, spreadsheet, database manager, and more.
A software suite is a collection of separate application programs bundled together and sold as a group.
5. Discuss audio and video editing software.
Video editing software allows you to reorganize, add effects, and more to your digital video footage.
Audio editing software allows you to create and edit audio clips.
6. Describe system software. What are the four types of system programs?
System software works with end users, application programs, and computer hardware to handle many details relating to computer operations. Not a
single program but a collection or system of programs.
7. What are the basic functions of every operating system? What are the three basic operating system categories?
Functions include managing resources, providing a user interface, and running applications.
Embedded Network Stand-alone
8. Discuss utilities. What are the five most essential utilities? What is a utility suite?
Troubleshooting or diagnostic programs Antivirus programs Uninstall programs Backup programs File compression programs
9. Describe the four basic types of system units.
System unit contains electronic components. Four basic types are: desktop, notebook, tablet PC, and handheld. PDA is the most widely used
handheld computer.
10. Describe the two basic components of the CPU.
Control unit tells the computer system how to carry out program instructions.
Arithmetic-logic unit performs arithmetic and logical operations.
11. What are the differences and similarities between the three typed of memory?
RAM chips are called temporary or volatile storage because their contents are lost if power is disrupted
ROM chips are nonvolatile storage and control essential system operations.
CMOS chips provide flexibility and expandability to computer systems.
12. Define input and output devices.
Input is any date or instructions used by a computer. Input devices translate words, images, and actions into a form a computer can process.
Output is date or information processed by a computer. Output devices translate processed text, graphics, audio, and video into a form humans can
understand.
13. Describe the different types of pointing, scanning, image capturing, and audio-input devices.
Pointing devices accept pointing gestures and convert them to machine-readable input.
Scanners devices convert scanned text and images into a form that can be processed by the system unit.
Image capturing devices create or capture original images. These devices include digital cameras and digital video cameras.