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Computer Registers

Total questions: 7

Worksheet time: 18mins

Name
Class
Date
1.

WhAt DoEs A pRoGrAm CoUnTeR dO?/?/?!

a)

Stores memory address of next instruction

Incremented by one after each fetch

b)

Stores address of the next piece of data or program to be fetched (or location to stored data). 1 way

c)

Stores a running total of the calculation that is currently being executed. ALU

2.

wHaT dOeS a MeMoRy AdDreEsS rEgIsTeR dO?/?/

a)

Stores a running total of the calculation that is currently being executed. ALU

b)

Stores result of fetch from memory which is either an instruction or data. Can also send data back to be stored

c)

Stores address of the next piece of data or program to be fetched (or location to stored data). 1 way

3.

WhAt DoEs A mEmOrY DaTa RegIsTer d0?//

a)

Stores memory address of next instruction

Incremented by one after each fetch

b)

Stores result of fetch from memory which is either an instruction or data. Can also send data back to be stored

c)

Holds the current instruction to be executed, having been fetched from memory.

4.

aCcUmUlAtOr?/? WaT dAt?/?11!

a)

Stores a running total of the calculation that is currently being executed. ALU

b)

Stores address of the next piece of data or program to be fetched (or location to stored data). 1 way

c)

Holds the current instruction to be executed, having been fetched from memory.

5.

What Does the Current Information Register (CIR) do?

a)

Stores a running total of the calculation that is currently being executed. ALU

b)

Stores memory address of next instruction

Incremented by one after each fetch

c)

Holds the current instruction to be executed, having been fetched from memory.

6.

How Many Registers are there??

a)

Good Question

b)

thanks i came up with it myself

c)

i know your also answering it yourself too in fact your talking to yourself right now while making this

d)

Alright Smartass the answer is 5

e)

i know i just wrote it

7.

where are all the reggies

a)

CU ( Not copper BTW)

b)

CPU

c)

ALU

d)

5 inches deep in your mom