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NPower Chapter 1 (Motherboards, Processors, & Memory) – Questions And Answers
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NPower Chapter 1 (Motherboards, Processors, & Memory) – Questions And Answers
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NPower Chapter 1 (Motherboards, Processors, &Memory) – Questions And Answers
RAM(Random Access Memory) Right Ans - Volatile Memory; temporary
memory. RAM is expandable, and resides on the motherboard.
Hardware Right Ans - The physical equipment of the computer that the
user can interact with eg. mouse, keyboard
Software Right Ans - The visual (operating systems: Windows, Linux, etc)
Computer Case Right Ans - Provides protection, support, and housing for
internal components of a computer
Form Factor Right Ans - *The size and layout of a device, port, or
peripheral (ie. how something looks and is shaped)
PSU (Power Supply Unit) Right Ans - - Converts AC (Alternating Current) to
DC (Direct Current)
⦁ A rail is a wire/path inside a PSU that carries electricity of a certain voltage.
⦁ Power supply contains three basic rails: +3.3Volts, +5V, and +12V
⦁ Form Factors
Single Rail: Right Ans - Power supplies that have only one over current
protection circuit
Multiple Rail: Right Ans - Power supplies that has more than one over
protection current
⦁ Safer, but more expensive
Motherboard: Right Ans - a printed circuit board containing the principal
components of a computer or other device, with connectors into which other
circuit boards can be slotted.
Motherboard Form Factors Right Ans - ⦁ The form factor of the
motherboard depends on the size and shape of the board
⦁ Most common form factor for Motherboard is ATX, ITX, and Micro ATX
, ⦁ The bigger the motherboard the more things you can attach to it, the
smaller, the less
CPU (Central Processing Unit) Right Ans - ⦁ CPU (Central Processing Unit) -
Processor→ It processes a program which is a sequence of instructions
(*Brain of the computer)
⦁ Megahertz + Gigahertz is the speed at which the CPU is measured
⦁ Overclocking- Forcing a CPU to run faster → Opposite: Throttling- Lowering
the speed of a CPU (To stop computer from overheating would be a reason for
throttling/Battery saver mode is an example of this)
CPU
CPU Form Factors Right Ans - ⦁ PGA + LGA - Two main form factors for
CPU
⦁ Intel CPU Form Factor type-LGA (Land Grid Array) *uses all numbers
⦁ AMD CPU Form factor-PGA (Pin Grid Array) *uses letters
RAM Right Ans - Random Access Memory is a temporary storage for data
and programs that are being accessed by the CPU
⦁ (*is volatile meaning that it is lost when the computer is turned off)
Non Parity RAM Right Ans - RAM that does not have parity, does not check
for errors, mainly used in desktops
Parity Right Ans - Checks for errors in RAM
ECC (Error Correcting Code) Right Ans - - Has the possibility to find and try
to fix errors in RAM. *Is a luxury, very expensive, used for servers.
Single, Dual, Triple Channel Memory Right Ans - - How your RAM best
interacts with each other.
⦁ Single channel - essentially says RAM works best alone
⦁ Dual channel- works best in pairs
⦁ Triple - works best when you have 3 sticks of RAM, Quad- works best with 4
sticks of RAM)
Cache Right Ans - Type of memory that is very fast, faster than physical
RAM. Part of the CPU and reserved for most frequently used data
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