Final Exam 1

Question 1

What is SRAM? What some notable things about it?

Answer 1

• Static RAM
• Faster, more expensive than DRAM

Question 2

Where is SRAM used on the CPU? What are the speeds?

Answer 2

• Cache level 1 and 2, 5-35 nanosecond

Question 3

The first physical sector of a hard drive is the

Answer 3

• MBR

Question 4

What is cache memory? What is it used for in a computer system?

Answer 4

• SRAM that acts as buffer between RAM
• Used to reduce the average time to access data from the main memory

Question 5

What is IEEE (1394)?

Answer 5

• FireWire. Developed by Apple as a successor to USB.

Question 6

What is WEEE? When was it launched? (EEE is just a shorter form of this)

Answer 6

• Waste from Electrical and Electronic Equipment program. 2009.

Question 7

What is IEEE (floating point)

Answer 7

• Institute of Electrical and Electronic Engineering

Question 8

In Ontario, are you allowed to dispose of your electronics by putting it outside for the garbage to pickup?

Answer 8

No

Question 9

Which part is the mantissa? How long is it in 32 bit IEEE floating point representation?

Answer 9

• The third field of the floating point.
• To the right of the radix point in a normalized binary number.
• 23 bits

Question 10

What is a cache hit?

Answer 10

• When the CPU looks for, and finds the data it is looking for in the cache

Question 11

Physical addresses vs. Virtual addresses of memory

Answer 11

• Physical addresses are the actual address of the physical memory, virtual addresses are references to physical addresses

Question 12

What is the smallest unit of addressable data?

Answer 12

• A byte

Question 13

What is the job of an operating system?

Answer 13

• It manages hardware and software resources

Question 14

When installing a program, do you think the software knows about the hardware, or vice-versa?

Answer 14

• No. Most storage devices don’t have any knowledge of what the data is, it’s just data.

Question 15

How many extended partitions can you have?

Answer 15

• You can only have 1 extended partition. (24 logical partitions inside)

Question 16

What is a variable in batch file?

Answer 16

• A string of characters that the scanner doesn’t recognize as reserved word
• Assigns the variable to an identifier table that tracks the name/contents of that var

Question 17

How can we initialize a variable in a batch file?

Answer 17

Use the set command

Question 18

What is the command to exit a batch file? Its not quit

Answer 18

• Exit or exit/b

Question 19

How does SRAM relate to power differently than DRAM?

Answer 19

Unlike DRAM, it uses capacitors, Data does not need to be refreshed
* Maintains contents long after power is applied

Question 20

The scanner generates a variable _____ for each variable in the identifier table

Answer 20

token