RAM/Memory

What is a stick of RDRAM called?

A stick of RDRAM is called RIMM.

Which of these activities is not memory intensive? A. surfing the Internet B. photo editing C. gaming

A. Surfing the internet.

Memory chips are normally available as part of what type of card? A. Printed circuit board B. Module C. Memory bank

B. Module.

What does DIMM stand for? A. dynamic incorporated memory module B. dual in-line memory module C. data input memory manager

B. dual in-line memory module.

Why is Static RAM more expensive than Dynamic RAM?

Because it has more parts, though, it takes up more space on a memory chip, which gives the chip less memory and makes it more expensive.

Why is Static RAM faster than Dynamic RAM?

Because static RAM requires anywhere from four to six transistors and some wiring, the memory never has to be refreshed. It's therefore faster than dynamic RAM.

What stick does SDRAM come on?

SDRAM sticks are dual inline memory modules (DIMM).

Are all types of RAM volatile?

There are some types of RAM that are nonvolatile.

What size does DRAM come in?

1 GB, 2 GB, 4GB, and more.

What sizes does DDR SDRAM come in?

1. 184-pin DIMM for desktops 2. 200-pin SO-DIMM for laptops 3. 172-pin micro-DIMMs for laptops

What are the two sizes RIMM comes in?

1. 184-pin for desktops 2. 160-pin SO-RIMM for laptops.

What two factors is the speed of RAM determined by?

1. Bus width 2. Bus speed

What are two reasons a computer might need more RAM?

1. If the computer is going slow. 2. Excessive hard drive accessing

What are the different types of DRAM sticks?

1. SDRAM 2. DDR 3. DDR2 4. DDR3

What are the differences between SRAM and DRAM?

1. SRAM is faster than DRAM 2. SRAM does not have to be refreshed as much as DRAM

What are the two main categories of RAM?

1. Static RAM (SRAM) 2. Dynamic RAM (DRAM)

What are the speeds of RDRAM?

600 MHz, 700 MHz, 800 MHz, and 1066 MHz.

What kind of memory would be associated with PC-1600 RAM? A. DDR B. DDR3 C. ROM D. SRAM

A. DDR. DDR memory module names use the designation PC for DDR memory, PC2 for DDR2, and PC3 for DDR3.

What is the most common form of RAM? A. Dynamic RAM B. Static RAM C. VideoRAM

A. Dynamic RAM

The first types of boards and connectors used for RAM were called what? A. Proprietary B. SIMM (single in-line memory module) C. DIMM (dual in-line memory module)

A. Proprietary

Where does most data go first within a computer's memory hierarchy? A. RAM B. ROM C. BIOS

A. RAM. Whether from an external input source like a mouse or a keyboard or an internal source like a hard drive, most data first passes through random access memory (RAM).

The access time that it takes for the CPU to draw on memory can range from: A. 9 to 70 nanoseconds B. 16 to 32 picoseconds C. 150 to 200 microseconds

A. The access time is between 9 and 70 nanoseconds. A nanosecond is one-billionth of a second.

What is latency? A. The number of clock cycles needed to read a particular bit of information. B. The gap between a processor's speed and a computer's bus speed. C. Anything that causes a computer memory crash.

A. The number of clock cycles needed to read a particular bit of information.

What does the CAS latency represent? A. The time it takes to receive data from memory after making the request B. The network delay between a workstation and a server, in milliseconds C. The time delay from a power-off state until a login prompt is shown D. The delay in reading data from the hard drive

A. The time it takes to receive data from memory after making the request. The Column Address Strobe (CAS) Latency refers to the delay between the time that the memory controller requests some data from RAM and the moment the data is available on the memory module's output pins. In SDRAM, the CL is specified in clock cycles. The value refers to the time delay, so a CL of 2 is faster than a CL of 3.

A single transaction between the system memory and the CPU is known as: A. a bus cycle B. a bit node C. a data unit

A. a bus cycle

Cache memory is: A. closer to the CPU than system memory B. stored on the hard drive C. used only in financial calculations

A. closer to the CPU than system memory. Cache memory is closer to the CPU in order to be more accessible. It's usually static RAM.

Which versions of windows use a page file?

All versions of windows use a page file.

What does the method known as parity do? A. Processes bits and bytes B. Checks for errors C. Deletes memory

B. Checks for errors.

Which of the following is not a type of RAM? A. EDO DRAM B. Flash C. VRAM

B. Flash. Although flash memory is a type of memory, it acts more like a hard drive than RAM does.

Which of these is a unique characteristic of multi-channel memory? A. Memory modules are synchronized to the bus speed B. Installed in pairs or trios for maximum throughput C. Uses an additional parity bit to identify errors D. Unused slots must be filled with memory terminators

B. Installed in pairs or trios for maximum throughput. Multi-channel memory requires that a pair or trio of memory modules installed simultaneously to maximize the throughput. If fewer modules are used, the memory bus will only have a fraction of the available bandwidth available.

How does virtual memory free up RAM? A. It partitions the computer's operating system, freeing up RAM in the process. B. It looks for data in RAM that hasn't been used much, copies that data to the hard drive and frees up RAM for other processes. C. It converts other kinds of memory into RAM temporarily on an as-needed basis.

B. It looks for data in RAM that hasn't been used much, copies that data to the hard drive and frees up RAM for other processes.

On what substance are memory cells etched? A. Copper B. Silicon C. Plastic

B. Silicon. Memory cells are etched onto wafers made out of silicon, the important element used for integrated circuits in computer chips.

What sets static RAM apart from dynamic RAM? A. Dynamic RAM is faster than static RAM. B. Static RAM is faster than dynamic RAM. C. There isn't much of a difference between static and dynamic RAM

B. Static RAM is faster than dynamic RAM.

What is a clock cycle? A. The accuracy of a computer's internal clock compared to an external one B. The CPU's processing speed C. The amount of time it takes for a computer to recover something from memory after booting upterm-63

B. The CPU's processing speed. Clock cycles refer to the central processing unit's processing speed. It's measured in hertz -- current processors have clock speeds in the gigahertz range.

In addition to the CPU, what computer component can have significant RAM? A. the BIOS B. the graphics card C. the controller

B. the graphics card. Video cards can have up to several gigabytes of memory to make graphics run smoother.

1 gigabyte of RAM is equal to how many kilobytes? A. 1024 B. 10486 C. 1048576

C. 1048576. A kilobyte is 1,024 bytes. A gigabyte is more than a billion bytes.

RAM is usually sold in multiples of how many megabytes? A. 8 B. 10 C. 16

C. 16. RAM is mostly sold in multiples of 16 megabytes: 16, 32, 64, 128, 256, 512 and 1,024 (the same as 1GB).

What is a memory cache? A. The amount of memory your computer has on hand for any particular task B. An outdated memory storage device C. A temporary memory storage device that keeps certain data available for quick reference.

C. A temporary memory storage device that keeps certain data available for quick reference.

What type of memory is commonly called "flash memory?" A. DRAM B. SDRAM C. EEPROM D. SRAM

C. EEPROM. Electrically Erasable Programmable Read Only Memory is used as the storage media on motherboards and USB flash drives.

When you change a memory card on your computer, you should: A. Wear rubber gloves. B. Always unplug the computer. C. Leave the computer plugged in.

C. Leave the computer plugged in unless the manufacturer advises against it. This establishes a ground and prevents static electricity discharges that can harm the memory card.

In the world of computers, what is bus width? A. The size of the vehicle used to ship the computer B. The number of pins in a computer port C. The number of bits that can be sent to a CPU simultaneously

C. The number of bits that can be sent to a CPU simultaneously.

How often does a memory controller automatically refresh memory in dynamic RAM? A. Once every minute B. A few times per second C. Thousands of times per second

C. Thousands of times per second. Dynamic RAM needs to automatically refresh thousands of times per second; that's where it gets the name "dynamic." Otherwise, it will forget the information it's holding.

In which of these would you be most likely to use ECC memory? A. Laptop computer B. Desktop computer C. Print server D. Database server

D. Database server. Error Correcting Code (ECC) memory not only detects when memory errors occur, but it can also correct these errors on the fly. This makes ECC memory a perfect fit for mission-critical servers.

What type of memory is most commonly associated with a CPU cache? A. Double Data Rate 3 (DDR3) SDRAM B. Read Only Memory C. Synchronous DRAM D. Static RAM

D. Static RAM. Static RAM (SRAM) is very fast memory that does not need to be periodically refreshed to maintain its data. The speed of Static RAM makes it a good choice for high-speed CPU caching.

What is DDR SDRAM?

DDR SDRAM is double data rate SDRAM. It is the RAM used by all modern computers.

What is the most common form of memory in today's computers?

Dual in-line memory modules are the most common form of RAM in today's computers.

How do you know if a certain RAM will be compatible with your motherboard?

Go to the RAM manufacturer's website and search for your motherboard

How does Dynamic RAM work?

In dynamic RAM (DRAM), the most common type of RAM, a transistor and a capacitor pair up to make a memory cell. The capacitor holds a bit of information (in the form of a 1 or 0), while the transistor acts as a switch, allowing the control circuitry to change the state of the memory.

What is a stick of DDR SDRAM called?

It's called DIMM.

What type of RAM do modern systems use?

Modern systems use some form of synchronous DRAM (SDRAM).

What is another name for the memory controller chip?

Northbridge

What are the common pin sizes for SDRAM on laptops?

On laptops DIMMS come in 68-pin and 144-pin or 172-pin micro-DIMM packages. There is also the 72-pin, 144-pin, or 200-pin small-outline DIMM (SO-DIMM) form factor.

What are the common pin sizes for the SDRAM on desktops?

On the desktop the common SDRAM pin size is 168-pins.

What is RAM cache?

RAM cache is a portion of the hard drive used as an extension of system RAM.

What is another name for RAM cache?

RAM cache is also called Page file, Swap file, and virtual memory.

Is RAM volatile or nonvolatile?

RAM is volatile meaning it loses its data when the power is off.

Why is RAM random access?

RAM, which stands for "random access memory," is considered "random access" because you can access any memory cell directly if the row and column is known.

How wide is RDRAM?

RDRAM is 64-bits wide.

What does RDRAM require when installing it?

RDRAM requires all the RIMM slots be populated.

Why was RDRAM created?

RDRAM was created for the Pentium 4.

Why was RDRAM not used by the industry?

RDRAM was very expensive so it was not used.

What does RAM stand for?

Random Access Memory

What is ReadyBoost?

ReadyBoost is a feature offered by Windows Vista and Windows 7 that enables you to use flash memory as super fast, dedicated virtual memory.

Where can SRAM be found?

SRAM can be found as cache memory for CPUs, as buffers on the motherboard, and within hard drives.

Whats an important feature of SRAM?

SRAM does not have to be periodically refreshed.

What does the PC do when you start running out of real RAM?

The PC swaps programs from RAM to the page file and opens more space for other programs that are active.

What should the RIMM slots be populated by?

The RIMM slots need to be populated by a device called continuity RIMM (CRIMM)

What is the default and recommended page-file size?

The default and recommended page-file size is 1.5 times the amount of installed RAM on the computer.

What determines what type of RAM you can use?

The motherboard

Besides the 32-bit 72-pin SO-DIMM what type of data do all these DIMM varieties provide?

They provide 64-bit wide data to match the 64-bit data bus of every CPU since the Pentium.

What is the name of the page file in Windows?

Windows calls the page file PAGEFILE.SYS.

If you want to use SDRAM what do you need?

You need a PC designed to use SDRAM. If the system has slots for 168-pin DIMMs, than the system can use SDRAM.