RAM

SODIMM

Most common memory module form factor used in laptops

DIMM

Type of RAM that features separate electrical contacts on each side of the module

The placement of a notch on the RAM module contact surface ensures proper alignment of the module with the memory bank on the motherboard and prevents the installation of incompatible memory types. (T/F)

True

Characteristic feature(s) of Static Random-Access Memory (SRAM)

Volatile storage media type

Faster than Dynamic Random-Access Memory (DRAM)

More expensive in comparison to Dynamic Random-Access Memory (DRAM)

Utilized for CPU cache memory chips

Characteristics of Dynamic Random-Access Memory (DRAM)

Volatile storage media type

Slower than Static Random-Access Memory (SRAM)

Less expensive in comparison to Static Random-Access Memory (SRAM)

Widely used as the primary storage media (regular RAM modules installed in memory slots on the motherboard)

The term "Synchronous Dynamic Random-Access Memory (SDRAM)" refers to a broad category of DRAM modules that rely on the signal sent by the system clock in order to coordinate their functioning with other internal PC components. (T/F)

True

SDRAM's backward compatibility feature provides a convenient way to build PCs using different types of SDRAM modules. (T/F)

False

Valid SDRAM module combination that can be installed on a single PC motherboard

DDR3 + DDR2

DDR4 + DDR3

DDR5 + DDR4

None of the above

Double Data Rate 3 Synchronous Dynamic Random-Access Memory (DDR3 SDRAM)

16 GB maximum capacity per memory module

240 contact pins

A notch on the RAM module contact surface prevents the installation of incompatible memory types

Double Data Rate 4 Synchronous Dynamic Random-Access Memory (DDR4 SDRAM)

32 GB maximum capacity per memory module

288 contact pins

A notch on the RAM module contact surface prevents the installation of incompatible memory types

Double Data Rate 5 Synchronous Dynamic Random-Access Memory (DDR5 SDRAM)

64 GB maximum capacity per memory module

288 contact pins

A notch on the RAM module contact surface prevents the installation of incompatible memory types

Parity Bit

Certain types of RAM use an additional bit to detect whether a data error has occurred. This extra bit stores information about the count of bits set to 1 in a given data string (typically one byte). Examining the value of this bit at different stages of processing allows for the detection of data corruption.

ECC type RAM

Can detect and correct errors

ECC RAM finds extensive use in environments where data integrity is essential, such as in critical infrastructure, high-availability systems, and applications requiring precise error detection and correction. It prioritizes data integrity over cost and performance, making it more expensive and slightly slower than non-ECC RAM in most cases. (T/F)

True

Type of RAM most commonly used as the main system memory in desktop PCs?

Non-ECC memory

Dynamic RAM

The color-coded memory slots on the motherboard indicate that a given motherboard provides support for the multi-channel memory architecture. (T/F)

True

Taking advantage of the performance benefits offered by the multi-channel memory architecture requires:

Memory modules of matching types

Memory modules of the same capacity

Memory modules of matching speeds

Installing modules in appropriate memory slots (slots of matching color) on the motherboard