Computer Science 109/149 FINAL EXAM+ Answers [100% verified]

Computer Science 109/149 FINAL EXAM+ Answers [100% verified] What is another name for the CPU?*Ans* The processor. What are the different components of the CPU?*Ans* Control unit, Buses, Arithmetic-Logic Unit (ALU), Dedicated registers What is the Control unit?*Ans* The part of the processor that coordinates the activity of all other components. What is a bus?*Ans* A series of connectors that transfer signals between internal components. How many lines does a bus typically consist of?*Ans* The binary numbers (8, 16, 32, 64). What is the system bus?*Ans* Consists of three separate buses carrying control signals, addresses and data. Which three busses make up the system bus?*Ans* Control bus, data bus, address bus. What does a control bus do?*Ans* Control signals are sent along the bus between the control unit and the other components of a computer. What are some examples of control signals?*Ans* Memory read, memory write, bus request, bus grant, clock Memory read*Ans* Causes data from the addressed location in RAM to be placed on the data bus Memory write*Ans* Causes data on the data bus to be written into the addressed location in RAM Bus request*Ans* Indicates that a device is requesting use of the data bus Bus grant*Ans* Indicates that the CPU has granted access to the data bus Clock*Ans* Used to synchronise operations by "ticking" between 1 and 0 What is an ALU?*Ans* Arithmetic-logic unit. The problem solving part of the processor that performs arithmetic, logical and shift operations on data. What are the arithmetic operations?*Ans* Add, Subtract, Multiply and Divide What are the logical operations?*Ans* AND, OR, NOT, XOR