Chapter 4: The CPU



Chapter 6: Memory

After studying this chapter you will be able to:

• Identify major issues concerning memory upgrades and replacement

• Describe how to properly upgrade RAM

• Identify and classify the various types of memory available

• Identify memory map areas and functions

• Identify typical memory problems

• Upgrade system memory

Part 1: Define the following terms

Single in-line package (SIP)

Dual in-line package (DIP)

Single in-line memory module (SIMM)

Dual in-line memory module (DIMM)

Read only memory (ROM)

Random access memory (RAM)

Programmable read only memory (PROM)

Erasable programmable read only memory (EPROM)

Flash ROM

Dynamic RAM

Static RAM

Synchronous dynamic RAM (SDRAM)

Row address selection (RAS)

Column address selection (CAS)

Solid state disk (SSD)

Serial presence detect (SPD)

Nanosecond (ns)

Parity

Odd parity checking

Even parity checking

Fake parity

Error correction code (ECC)

Buffer

Registered memory

Flash memory

Hot swap

Heap

Convention memory

Upper memory (aka reserved memory)

High memory area (HMA)

Expanded memory standard (EMS)

Extended memory system (EMS)

Safe mode

Virtual memory

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Part 2: Answer the following questions

1. Compare and ink pen and a pencil with an eraser to RAM and ROM memory.

2. What is the purpose of memory SPD?

3. How much memory can DOS access?

4. What is the difference between expanded and extended memory?

5. What is another name for upper memory?

6. Application programs run from _______ memory.

7. What is the maximum amount of memory accessible by a 32-bit operating system?

8. What is virtual memory?

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