Advanced Hardware
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- What two methods can a system use to detect the type of memory installed?
- Parallel Presence Detect (PPD) or Serial Detect (SPD).
- Name a chip set feature on the system board that checks the integrity of data stored on DIMMs and can correct single-bit errors in a byte.
- ECC - Error checking and correction
- Which memory detection scheme uses resistors to communicate the type of memory installed?
- Parallel Presence Detect (PPD).
- What happens to data in RAM when the PC is turned off?
- All data in RAM is lost when the PC is turned off.
- What is the data path size for Direct Rambus DRAM?
- 16 Bits.
- what is "Conventional Memory"?
-
The memory adresses between 0 and 640K.
Also called BASE memory. - How many pins are there on the edge connector of a DIMM?
- DIMMS have 168 pins on the edge connector.
- RAM is divided into what two categories?
- Static RAM (SRAM) and Dynamic RAM (DRAM)
- What is the Upper Memory Block?
- A group of consecutive memory addresses in RAM from 640K up to 1024K that can be used by device drivers and TSR's
-
True or False:
Expansion cards can have RAM and ROM on them. - True
- How many pins are there on the edge connector of a SIMM?
- Older SIMMS use 30 pins, newer SIMMS use 72 pins on the edge connector.
- What is another name for DDR SDRAM?
- SDRAM II
- What is the data path size of a DIMM?
- The data path size of a DIMM is 64 bits.
- What is Asyncronous SRAM?
-
Static RAM that does not work in step with the CPU clock.
Slower than syncronous SRAM. - The assigning of addresses to RAM and ROM during boot up is called what?
- Memory Mapping.
- Computer memory is divided into what two categories?
- RAM and ROM
-
True or False:
A system board can support both syncronous and asyncronous SRAM, but not at the same time. - TRUE
- What is a BUFFER?
- A temporary memory area where data is stored before being written to a printer or disk drive.
- What is the data path size for a SIMM?
- A SIMM has a data path of 32 bits.
- what is the memory above the initial one Megabyte called?
- Extended memory
- Why is it called "Dynamic" RAM?
- Because it constantly needs refreshing.
- What is a BANK?
- An area on the motherboard that contains slots for memory modules. Typically labeled bank 0,1,2 and 3.
- What kind of memory can hold data even when the power is turned off?
- Flash memory
- What type of ROM can be erased using UV light?
- EPROM
- What is DDR SDRAM?
- Double Data Rate syncronous dynamic ram - A type of memory used on DIMMS that runs at twice the speed of the system clock.
- What is an EEPROM?
- Electrically erasable programmable ROM.