What is the 'stored program concept'?
Groups of instructions, called a program, stored in the main memory, are being executed serially.
The 'fetch', 'decode', 'execute' cycle
This is sometimes referred to as the 'the Von Neumann concept' after the person who first defined it.
What is the role of the system clock?
The system clock synchronizes the tasks in a computer
One clock cycle is the time that passes from the start of one high pulse, until the start of the next.
What is the Address Bus?
Direct memory access (DMA)
Direct memory access (DMA) is a feature of modern computers and microprocessors that allows certain hardware subsystems within the computer to access system memory for reading and/or writing independently of the central processing unit. Many hardware systems use DMA including disk drive controllers, graphics cards, network cards, sound cards and GPUs.