CPUs Flashcards

(35 cards)

1
Q

Clock Speed

A

Max # of cycles a CPU can handle in a given period

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2
Q

System Crystal

A

Determines speed at which CPU can operate

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3
Q

CPU and RAM

A

CPU uses RAM as a “spreadsheet” to store and retrieve code

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4
Q

Memory Controller Chip (MCC)

A

Retrieves data from RAM to put on EDB for CPU to read

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5
Q

Address Bus

A

CPU communicates to MCC through this

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6
Q

CPU Development Processes

A

Developer - Industry Standard Architecture (ISA)
Developer - Chip Floorplan, Physical Stuff
Fabrication Company - Creates

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7
Q

3 Major CPU Companies

A

Intel (x86-64 architecture)
Advanced Micro Devices, Inc. (AMD) - Fabless
Arm Ltd - ARM (Advanced RISC Machine) CPUs, license to other companies

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8
Q

x86-64 architecture

A

Windows, many Linux distros, some macOS, some Chrome OS

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9
Q

ARM

A

Windows, macOS, Linux, Chrome, every mobile device run on ARM. Most used in the world.

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10
Q

Throttling

A

Saving energy by making CPU run more slowly when there is less demand

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11
Q

Thermal Throttling

A

Done because of excess heat

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12
Q

Clock Multiplier

A

Speeds up the computing process to hit the CPU max speed, or lowers it in times of less demand

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13
Q

64-Bit Processing

A

Supports higher levels of RAM (over 4gb)

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14
Q

x86

A

Old processors, 32-bit systems

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15
Q

x64

A

64-bit systems, newer and faster

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16
Q

x86-x64 processors

A

Can run both types of code, these are the most modern processors

17
Q

Virtualization Support

A

Run more than one OS at a time, used to have to work through software but can now work directly thru CPU

18
Q

Parallel Execution

A

Able to execute multiple commands at the same time in parallel

19
Q

Pipelining

A

Fetch
Decode
Execute
Write

Current CPUS have multiple pipelines

20
Q

Cache

A

Static RAM (SRAM) used to reduce wait states (CPU faster than RAM)

21
Q

Multithreading

A

Multiple parallel threads running at the same time, basically 2 CPUs but does not double processing power

OS and apps must be made to take advantage

22
Q

L1, L2, L3

A

L1
cache will be the smallest and fastest cache; L2 will be bigger and slower
than L1; and L3 will be the biggest and slowest cache.

23
Q

Multicore Processing

A

Multiple pipelines but share caches and RAM

Operates independently from OS, but requires optimization

24
Q

Integrated Memory Controller

A

Optimizes information flow in and out of CPU

25
Integrated Graphics Processing Unit
Integrated Graphics, enhances performance while reducing energy use, size and cost
26
Security
NX bit technology, CPU protects certain sections of memory, protecting essential OS files
27
Selecting a CPU
Ensure compatibility -Support AMD or Intel? -What CPU socket?
28
CPU Sockets
Intel - LGA 2066, 1200, 1700 AMD - AM4, AM5, TR4
29
CPU Installation Points
Take care with pins and socket Is the power supply enough Adequate cooling Stock or overclock
30
LGA
Land Grid Array - CPU socket for Intel Has pins
31
PGA
Pin Grid Array - CPU socket for AMD Has holes
32
Passive v Active Cooling
Passive: Heat sink alone Active: Heat sink with fan
33
CPU Overheating, Why?
1. too much thermal paste 2. not enough thermal paste 3. failure to connect fan power to mb impediments to fan lack of ventilation
34
CPU Catastrophic Failure
Proprietary crash screens (BSOD, mac pinwheel) Magic smoke
35
Register
Store internal commands and data