Operating Systems - An Introductory Course

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This is a quiz on chaper one of the Operating Systems Course CIS 233 offered at Saint John's College Junior College, Belize City

Questions and Answers

1.

Which of the following explains the word Volatile.
- A.
  
  Volumes of data is stored
- B.
  
  Data is typically lost when power is removed
- C.
  
  Data can be retrived
- D.
  
  Data is saved if the power is lost
- E.
  
  Data can never be lost
Correct Answer
B. Data is typically lost when power is removed
2.

When speaking of the two internal registers MAR means Memory Address Register and MBR means _________________________________________________
- A.
  
  Memory Between Register
- B.
  
  Main Buffing Register
- C.
  
  Memory Buffer Register
- D.
  
  Main Buffer Report
- E.
  
  Memory Between Report
Correct Answer
C. Memory Buffer Register
3.

I specify the address in memory for the next read or write, what am I?
- A.
  
  Read Only Memory
- B.
  
  Random Access Memory
- C.
  
  Random Address Register
- D.
  
  My Address Register
- E.
  
  Memory Address Register
Correct Answer
E. Memory Address Register
4.

The two ___________________ __________________ are MAR and MBR.

Correct Answer
internal registers
internal register
5.

The computers _________________________________ is ofter reffered to as real memory or primary memory.

Correct Answer
main memory
6.

The main memmory of a computer system consists of a set of locations that are defined by __________________________ numbered addresses contating either data or instructions.

Correct Answer
sequentially
7.

Processor ________________________ are faster and smaller than main memory.

Correct Answer
registers
8.

I enable the programmer to minimize main memory references by optimizing register use. What am I?

Correct Answer
User-visible register
9.

A ________________________ includes a set of registers that provide memory that is faster and smaller than main memory.

Correct Answer
processor
10.

Processor registers serve two functions:User-visible registers: this enables the machine or assembly language programmer to minimize main memory references by optimizing register use.______________________________: this is used by the processor to control the operation of the processor and by privileged OS routines to control the execution of programs.

Correct Answer
Control and status registers
11.

______________________________: this is used by the processor to control the operation of the processor and by privileged OS routines to control the execution of programs.
- A.
  
  Central Processing Unit
- B.
  
  OS routines
- C.
  
  User-visible register
- D.
  
  Control and status register
- E.
  
  Modem
Correct Answer
D. Control and status register
12.

True or FalseThere is a clean separation of registers into User-visible registers and Control and Status registers.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False
13.

True or FalseOn some processors, the program counter is user visible, but on many it is not visible.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True
14.

The User-Visible Registers may be referenced by machine _____________________.

Correct Answer
language
15.

When discussing User- Visible Registers the types that are typically available are:-data- ____________________- condition code registers

Correct Answer
address
16.

___________________________ can be assigned to a variety if functions by the progrmmer.*Usually they are general purpose in nature and can be used with any machine instruction that performs operation on data.* Some ristriction may apply
- A.
  
  Data register
- B.
  
  Address Register
Correct Answer
A. Data register
17.

The _____________________ register contains the following:*main memory and address of data and instructions*portion of the address that is used in the calculation of the complete of effective address.
- A.
  
  Data
- B.
  
  Address
- C.
  
  Instruction
- D.
  
  Calculation
- E.
  
  Effective
Correct Answer
B. Address
18.

Data and Address RegistersWhat us the common mode of addressing that involves adding an index to a base value to get the effective address.
- A.
  
  Data
- B.
  
  Index register
- C.
  
  My Register
- D.
  
  Segment Pointer
Correct Answer
B. Index register
19.

Segment Pointer: With segmented _____________________, memory is divided into segments, which are variable-length blocks of words
- A.
  
  Data
- B.
  
  Addressing
- C.
  
  Resister
- D.
  
  Register
- E.
  
  EPROM
Correct Answer
B. Addressing
20.

Stack pointer: If there is user-visible stack addressing, then there is a dedicated register that points to the top of the stack. This allows the use of the instructions that contain no _____________ field.

Correct Answer
address

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Sep 17, 2009

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Operating Systems - An Introductory Course

Which of the following explains the word Volatile.

When speaking of the two internal registers MAR means Memory Address Register and MBR means _________________________________________________

I specify the address in memory for the next read or write, what am I?

The two _ are MAR and MBR.

The computers _________________________________ is ofter reffered to as real memory or primary memory.

The main memmory of a computer system consists of a set of locations that are defined by __________________________ numbered addresses contating either data or instructions.

Processor ________________________ are faster and smaller than main memory.

I enable the programmer to minimize main memory references by optimizing register use. What am I?

A ________________________ includes a set of registers that provide memory that is faster and smaller than main memory.

______________________________: this is used by the processor to control the operation of the processor and by privileged OS routines to control the execution of programs.

True or FalseThere is a clean separation of registers into User-visible registers and Control and Status registers.

True or FalseOn some processors, the program counter is user visible, but on many it is not visible.

The User-Visible Registers may be referenced by machine _____________________.

When discussing User- Visible Registers the types that are typically available are:-data- ____________________- condition code registers

___________________________ can be assigned to a variety if functions by the progrmmer.Usually they are general purpose in nature and can be used with any machine instruction that performs operation on data. Some ristriction may apply

The _____________________ register contains the following:main memory and address of data and instructionsportion of the address that is used in the calculation of the complete of effective address.

Data and Address RegistersWhat us the common mode of addressing that involves adding an index to a base value to get the effective address.

Segment Pointer: With segmented _____________________, memory is divided into segments, which are variable-length blocks of words

Stack pointer: If there is user-visible stack addressing, then there is a dedicated register that points to the top of the stack. This allows the use of the instructions that contain no _____________ field.

Operating Systems - An Introductory Course

Which of the following explains the word Volatile.

When speaking of the two internal registers MAR means Memory Address Register and MBR means _________________________________________________

I specify the address in memory for the next read or write, what am I?

The two ___________________ __________________ are MAR and MBR.

The computers _________________________________ is ofter reffered to as real memory or primary memory.

The main memmory of a computer system consists of a set of locations that are defined by __________________________ numbered addresses contating either data or instructions.

Processor ________________________ are faster and smaller than main memory.

I enable the programmer to minimize main memory references by optimizing register use. What am I?

A ________________________ includes a set of registers that provide memory that is faster and smaller than main memory.

______________________________: this is used by the processor to control the operation of the processor and by privileged OS routines to control the execution of programs.

True or FalseThere is a clean separation of registers into User-visible registers and Control and Status registers.

True or FalseOn some processors, the program counter is user visible, but on many it is not visible.

The User-Visible Registers may be referenced by machine _____________________.

When discussing User- Visible Registers the types that are typically available are:-data- ____________________- condition code registers

___________________________ can be assigned to a variety if functions by the progrmmer.*Usually they are general purpose in nature and can be used with any machine instruction that performs operation on data.* Some ristriction may apply

The _____________________ register contains the following:*main memory and address of data and instructions*portion of the address that is used in the calculation of the complete of effective address.

Data and Address RegistersWhat us the common mode of addressing that involves adding an index to a base value to get the effective address.

Segment Pointer: With segmented _____________________, memory is divided into segments, which are variable-length blocks of words

Stack pointer: If there is user-visible stack addressing, then there is a dedicated register that points to the top of the stack. This allows the use of the instructions that contain no _____________ field.

The two _ are MAR and MBR.

___________________________ can be assigned to a variety if functions by the progrmmer.Usually they are general purpose in nature and can be used with any machine instruction that performs operation on data. Some ristriction may apply

The _____________________ register contains the following:main memory and address of data and instructionsportion of the address that is used in the calculation of the complete of effective address.