Homework 2

Homework 2 - Homework 2 Video Hard Drives and...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Homework 2 – Video, Hard Drives and Communications Student Name: HARSH PATEL Assignment: Use this document as a template. Answer each section completely. You may use outside references to complete the questions. Each question is worth 10 points. 1. What is the difference between AGP and PCI-Express (PCI-E) in terms of processing power and bandwidth? Primarily, we are looking for: How do they communicate, what speeds can they attain for communication, is communication full or ½ duplex? AGP stands for Accelerated Graphics Port and PCI-E stands for Peripheral Component Interconnect Express. The PCI-Express uses serial bus to communicate while AGP uses Parallel bus to communicate. The communication method used by PCI-E is full duplex that means that it and send and receive data at the same time while the communication method used by AGP is half duplex and is unidirectional. The PCI-E also offers more bandwidth than AGP. The following table shows the bandwidths for AGP and PCI-E version 1 and 2. Unidirectional Bandwidth Bidirectional Bandwidth (PCI-e version 2 unidirectional Bandwidth) PCI-e version 2 bidirectional Bandwidth PCI-E 1.0 x1 250 MB/S 500 MB/S 1000 MB/S PCI-E 1.0 x2 500 MB/S 1000 MB/S 2000 MB/S PCI-E 1.0 x4 1000 MB/S 2000 MB/S 4000 MB/S PCI-E 1.0 x8 2000 MB/S 4000 MB/S 8000 MB/S PCI-E 1.0 x16 4000MB/S 8000 MB/S 16000 MB/S PCI-E 1.0 x32 8000 MB/S 16000 MB/S 32000 MB/S AGP 1x 266 MB/S N/A N/A AGP 2x 533 MB/S N/A N/A AGP 4x 1060 MB/S N/A N/A AGP 8x 2100 MB/S N/A N/A
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2. What is the difference between DVI output and Analog output (DO NOT say one is analog and one is digital)? DVI output Analog output In DVI output multiple signals are carried concurrently digitally. In analog output video is made up of one signal with modulation. DVI can only go to 60Hz refresh rate Analog\VGA refresh rate can go up to 75Hz DVI can carry uncompressed video signal VGA requires conversion along the way. When talking about data redundancy, you can configure hard drives in Raid configurations. The most popular are RAID-0 and RAID-5. 3. Define these two RAID levels RAID-0 and RAID-5 in terms of data protection, speed and the # of hard drives required? RAID 0 array offers no redundancy or fault tolerance. In RAID 0 the data is striped across all drives. The minimum number of drives required to create RAID 0 array is 2. The read and write speed will almost approximately double if I create a RAID 0 with 2 drives. The read and write benefit for RAID 0 is nX (number of drives times x). Since, RAID 0 array has no redundancy the data is lost even if just 1 drive fails. The array capacity for RAID 0 is size of smallest drive times number of drives. RAID 5 array striped both data and parity across the drives. The minimum
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 7

Homework 2 - Homework 2 Video Hard Drives and...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online