Part 1 - Basic Info & CPU Chapter Flashcards
What is the MCC?
MCC stands for Memory Controller Chip
What are the CompTIA “Troubleshooting Methodology” steps?
- Identify the problem
- Establish a theory of probable cause
- Test the theory to determine the cause
- Establish a plan of action to resolve the problem and implement the solution
- Verify full system functionality and, if applicable, implement preventative measures
- Document findings, actions, and outcomes.
What is a CPU’s ALU?
Arithmetic Logic Unit. The part of a CPU that handles integer math (math with no decimal point).
What is a CPU’s TDP?
Thermal Design Power. This gives a rough idea of how much energy a CPU draws and what kind of cooling system it will need.
What is the FPU?
Floating Point Unit. Part of the CPU that handles calculations with complex numbers.
What are the four Stages of a CPU pipeline?
Fetch, Decode, Execute, Write
What is a cache?
CPU caches are small pools of memory that store information the CPU is most likely to need next.
What is SRAM?
Static RAM (Random Access Memory), used primarily for a CPU’s cache.
What are the sizes and speeds of the L1, L2 and L3 cache?
The L1 is the smallest in size and the fastest cache on the CPU. The L2 is larger than the L1 cache but slower. The L3 cache is the largest and slowest of the three.
What is a x86 processor?
A (usually) older 32-bit system limited to 4GB of memory.
What is a x64 processor?
A newer 64-bit system capable of supporting more than 4GB of memory
What is a x86-64 processor?
A x64/64-bit processor that can handle x86/32-bit code and 64-bit code. Which is not an uncommon feature for x64 processors.
What is parallel execution?
The ability for a CPU to process multiple commands and parts of commands in parallel. CPUs accomplish this parallelism through multiple pipelines, dedicated cache, and the capability to work with multiple threads or programs at one time.
What is a thread?
Programs break down into a number of little pieces, called threads, and data. Each thread is a series of instructions designed to do a particular job with the data.
What is CPU multi-core architecture?
A dual-core CPU has multiple execution units—two sets of pipelines—but the two sets of pipelines share caches and RAM. Multicore CPUs—with four, six, or eight cores—are common. Higher-end CPUs have up to 32 cores! CPU manufacturers engineered the cores in multicore CPUs to divide up work independently of the OS, known as multicore processing.
Meyers, Mike. CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition (Exams 220-1001 & 220-1002) (p. 111). McGraw-Hill Education. Kindle Edition.
What is the difference between the L1 D-Cache and L1 I-Cache
The L1 cache sometimes divides into one cache to handle data—the D-Cache—and another cache for instructions—the I-Cache.
Meyers, Mike. CompTIA A+ Certification All-in-One Exam Guide, Tenth Edition (Exams 220-1001 & 220-1002) (p. 111). McGraw-Hill Education. Kindle Edition.
