CISC and RISC

It is a computer architecture in which single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) or are capable of multi-step operations or addressing modes within single instructions.

Credited as the first RISC architecture

An example of CISC

• System 360

• PDP-11

• Motorola 6800

• All of the them

The first RISC system is _____________.

• IBM 801

• CDC 6600

• Zilog Z80

• None of them.

It is a computer architecture designed to simplify the individual instructions given to the computer to accomplish tasks.

___________ has 8000 transistors.

• IBM ROMP

• CDC 6600

• Zilog Z80

• None of them.

Its emphasis is on hardware.

• CISC

• RISC

• Both CISC and RISC

It has less register.

• CISC

• RISC

• Both CISC and RISC

Fewer addressing modes.

• CISC

• RISC

• Both CISC and RISC

Extensive use of microprogramming.

• CISC

• RISC

• Both CISC and RISC