Chapter 3

  1. Serial communication is the process of transmitting and processing data one bit at a time.

  2. Data that is transmitted serially is transmitted one bit at a time; parallel data is transmitted 8 bits (one byte) at a time.

  3. False. Refresh rate signifies the number of times that the beam of electrons shot from the electron gun redraws the screen.

  4. Super Video Graphics Adapter (SVGA) will support the most colors and the highest resolution of all adapter types.

  5. Serial, bus, PS/2, USB

  6. False. Digital data represents discrete voltage values. One value is represented at a given moment in time.

  7. A modem uses a standard telephone line to dial out to another modem or Internet provider. A cable modem uses the CATV network and maintains an active connection to the Internet.

  8. Traditional modems must convert digital signals to analog signals (modulate) to send data over phone lines. The maximum transmission speed of data in analog form over phone lines is 56Kbps. DSL is all digital and therefore is not bound by the same physical restrictions as modems.

  9. True

  10. False. Motherboards are manufactured to support more than one bus type to accommodate various add-in components.

  11. Printers are networked to provide many users access to a single print device and therefore save money by sharing the resource.




MCSA. MCSE 2003 JumpStart. Computer and Network Basics
MCSA/MCSE 2003 JumpStart
ISBN: 078214277X
EAN: 2147483647
Year: 2003
Pages: 203
Authors: Lisa Donald

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