Hui Hsing Su

CSC 103

Assignment 3

 

1.    The manufacturer is Dell. The model is OptiPlex GX280 (DHM).

 

2.    The manufacturer is Intel. The model number is Pentium 4 HT 3.0 SL6WK.

 

3.    3GHz.

 

4.    Hz abbreviates Hertz. For the CPU, Hertz, or the number of pulses per second, measures the clock rate of the CPU. The clock rate is the

 

"Frequency of a computer's internal electronic clock. Every computer contains an electronic clock, which produces a sequence of regular electrical pulses used by the control unit to synchronize the components of the computer and regulate the fetch–execute cycle by which program instructions are processed.

 

A fixed number of time pulses is required in order to execute each particular instruction. The speed at which a computer can process instructions therefore depends on the clock rate: increasing the clock rate will decrease the time required [by the CPU] to complete each particular instruction."

 

(Source: http://encyclopedia.farlex.com/CPU+speed)

 

ÒThe clock rate of a CPU is normally determined by the frequency of an oscillator crystal

 

crystal oscillator frequency reference typically is synonymous with a fixed sinusoidal waveform, a clock rate is that frequency reference translated by electronic circuitry into a corresponding square wave pulse [typically] for digital electronics applications."

 

(Source: http://en.wikipedia.org/wiki/Clock_rate)

 

5.    They are DIMMs

 

 ÒThe SIMMs pins on either side are connected to each other while DIMM pins are independentÓ

 

(Souce: http://www.differencebetween.net/technology/difference-between-simm-and-dimm/)

 

ÒThe gold or tin pins on the lower edge of the front and back of a SIMM are connected, providing a single line of communication paths between the module and the system. 

 

The pins on a DIMM are not connected, providing two lines of communication paths between the module and the system, one in the front and one in the back.Ó

 

(Source: http://www.dslreports.com/faq/1567)

 

6.    1024MB.

 

7.    There is a separate video card. Hence the graphics/video is not ÒintegratedÓ in the motherboard.

 

8.    Graphics processing unit.

 

9.    The manufacturer is Hitachi. The model number is Deskstar 1C35L090 AVV207-0.

 

10.    Two.

 

11.    80.0 GB.

 

12.    100-120V or 200-240V. [This is only the input voltages; output voltages are more important, as they feed into machine.—JOR]

 

13.    3V.

 

14.    The manufacturer is NEC Corporation. The model number is ND-2100A.

 

15.    8x 

(Source: https://support.dell.com/support/edocs/storage/p64593/en/index.htm)

 

16.    The PC has a power supply that converts alternating current to direct current. The PC can be used all over the world because it operates on both 100-120V and 200-240V voltage.