Chapter 1. Basic Operating Sistem

Evalution of Chapter 2

A.Multiple Choice

1.A.every input that is reseived by a computer

2.B.data that is reseived by a computer

3.B.user-input-CPU-output-user

4.B.base-2 number sistem

5.E.0 and 1

6.E.8

7.C.speaker

8.B.Control Unit

9.B.MAN

10.C.ring topology

B.essay

1.In ASCII code,by what code is letter W represented?

2.Name and explain all supporting devices inside a CPU.

3.What is the abbreviation and the funtion of ROM?

4.Name three exsamples of network interface cards.

5.Name several cables that use on a wired network.

    Answer for essay

1.the letter W is represented by the number code 87.

2.a.A CPU socket,which is where a microprocessor is placed.

   b.A memory slot,which is where a computer memory is placed.

   c.A chipset, which is a chip that regulates the interaction among devices.there are a south bridge chip and a

      northridge chip.
   d.An expantion slot,such as PCI,AGP<and PCI express.
   e.A power connector to received electrical input from the power supply unit (PSU) and then distributes the
      electricity to all connecting devices
3.ROM (Read Only Memory) is a permanent memory that can be read but cannot be updated. ROM is to
   save computer operation program,such as BIOS  and booting
4.there are several NIC types in the market, such as:ethernet,arcnet,and token ring.the most commonly used
   of all the there is ethernet
5.a.  UTP Cable ( Unshielded Twisted Pair)
   b.STP Cable ( Shielded Twisted Pair )
   c.Coaxial cable
  d.Optical Fiber
  e.Wirelles Network.