CPU Flash Cards

Dual core

2 processors

Quad Core

4 processors

Cache

A CPU cache is a hardware cache used by the central processing unit (CPU) of a computer to reduce the average cost (time or energy) to access data from the main memory. The cache is a smaller, faster memory which stores copies of the data from frequently used main memory locations.

Embedded systems

A computerised system within a larger and complex electrical system with a specicfic purpose.

Program

A series of instructions given to a computer to direct it to carry out certain operations. The term code is often used to denote large-scale operations.

Registers

A temporary memory store in the processor

RAM

An acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes.

ALU

An arithmetic-logic unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the ALU is divided into two units, an arithmetic unit (AU) and a logic unit (LU).

Accumulator

Counts total calculations taking place

Arithmetic logic unit

Does mathematical operations and logical operations

Data

Information expressed as numbers for use especially in a computer

Clock speed

How many fetch and execute cycles can be completed; measured in MHz

ROM

Once data has been written onto a ROM chip, it cannot be removed and can only be read. Unlike main memory (RAM), ROM retains its contents even when the computer is turned off. ROM is referred to as being nonvolatile, whereas RAM is volatile

Primary Memory

Primary storage, also known as main storage or memory, is the area in a computer in which data is stored for quick access by the computer's processor. The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

Number or cores

Refers to the number of processors; multiple processors help

MDR

Stores data once they have been fetched.

MAR

Stores location of instruction/data

PC

Stores number of address of instructions

Transisitors

Switches between the logic gates

CPU

The Central Processing Unit (CPU) is the computer component that's responsible for interpreting and executing most of the commands from the computer's other hardware and software.

Output

The act of producing something, the amount of something that is produced or the process in which something is delivered

Control Unit

The control unit (CU) is a component of a computer's central processing unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.

Input

This can take a variety of forms from commands you enter from the keyboard to data from another computer or device. A device that feeds data into a computer, such as a keyboard or mouse, is called an input device.

GHz

Used for measuring clock speed