computer performance

computer performance

1. clock speed

   • the operating speed of a computer or its microprocessor, expressed in cycles per second
   • Also called clock rate, the speed at which a microprocessor executes instructions. ... The CPU requires a fixed number of clock ticks (or clock cycles) to execute each instruction. The faster the clock, the more instructions the CPU can execute per second. Clock speeds are expressed in megahertz (MHz) or gigahertz ((GHz).

2. cache

   • In computing, a cache is a hardware or software component that stores data so that future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation or a copy of data stored elsewhere
   • Cache memory is an extremely fast memory type that acts as a buffer between RAM and the CPU. It holds frequently requested data and instructions so that they are immediately available to the CPU when needed. Cache memory is used to reduce the average time to access data from the Main memory.
   • programs can be load faster and load data more instructions can be processes at once

3. cores

   • A multi-core processor is a computer processor integrated circuit with two or more separate processing units, called cores, each of which reads and executes program instructions, as if the computer had several processors
   • A core, or CPU core, is the "brain" of a CPU. It receives instructions, and performs calculations, or operations, to satisfy those instructions. A CPU can have multiple cores. A processor with two cores is called a dual-core processor; with four cores, a quad-core; six cores, hexa-core; eight cores, octa-core.

4. RAM

   • Random-access memory is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory.
   • Random access memory (RAM) is the best known form of computer memory. ... SAM stores data as a series of memory cells that can only be accessed sequentially (like a cassette tape). If the data is not in the current location, each memory cell is checked until the needed data is found.

5. UPGRADES YOU CAN DO

   • cpu
     • clock speed
       • programs will load faster can fetch decode execute faster
     • cache
       • loads programs and data faster can access frequently used data quicker
     • cores
       • programs will load faster as well as data more instructions can be processed at once