3.3b: Memory Technologies: Professor Messer

Error-Correcting Code (ECC) RAM

A type of RAM used in critical systems that checks and fixes errors as they occur.

Parity Memory

A type of memory that adds an additional parity bit to stored data to check for errors, but is less effective than ECC.

Function of parity bit

To check an 8-bit stream for an even number of 1’s and add an extra 1 if there's an odd number.

Single-channel Configuration

A memory setup that operates using a single memory module, leading to standard performance.

Dual-channel Configuration

A memory setup that uses two memory modules to enhance throughput by spreading the load.

Triple-channel Configuration

A memory configuration that utilizes three memory modules to improve performance further.

Quad-channel Configuration

A memory setup that involves four memory modules, maximizing performance through distributing the workload.

Multi-channel

A system of memory configurations (dual, triple, quad) that enhances performance by distributing data across multiple memory modules.

Indication of Multi-channel setups

Typically indicated by matching colors on the module slots.