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Unit 6 Student Study Guide

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Submitted By undrea1969
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1. What are the two types of memory found in your computer?
RAM
ROM

2. Discuss the features of RAM.
Loses its data when power is turned off.

3. What is an important characteristic of DRAM?
DRAM is dynamic- is data is held in capacitor like devices that can take a charge and hold it for a brief time.

4. What type of RAM does not require refreshing?
SDRAM
DRAM
SDRAM

5. Discuss the main feature of DDR and DDR2.
DDR=Double Data Rate
DDR2=Double Data Rate (Enhanced)

6. What is a RDRAM module? Discuss its application.
Is a type of synchronous dynamic RAM

7. Compare and identify memory modules.
72-pin SIMM
168-pin DIMM
184-pin DIMM DDR
184-pin Rambus RDRAM
240-pin DIMM
100-pin DIMM
172-pin MicroDIMM DDR
144-pin SoDimm

8. Which type is used in laptops?
144-pin SODIMM

9. Discuss the geometry of hard drives.
The Geometry of hard drive is organization of data on Platters. Five numerical values that describe Heads, Cylinders, Sector per track, Write Precmpensation, Landing Zone.
10. How many drives can be attached to one PATA cable?
2 Drives

11. How are they identified? IDE or SATA.

12. Define UDMA.
The UDMA interface was the fastest method used to transfer data between the computer and
ATA devices until serial ATA.

13. Discuss the major features of ATA drives.

ATA drives also known as IDE drives are the standard interface that connect hard disks and optical units to a computer.

14. What information is provided by the PATA BIOS? LBA Translation Hard drive geometry Data transfer rate

15. List the three geometry factors. The number of sectors per track The number of read/write heads The number of cylinders

16. Define RAID. Is a method for creating a faster or safer single logical hard disks drive from two or more physical drives.
17. Discuss the RAID types used by ATA and SATA. Number of drives supported and methodology. RAID Level 0 (RAID0) RAID Level 1 (RAID1) RAID Level 0+1 (RAID10) RAID Level 5 (RAID5)

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