Higher Retrieval Bank Computer Systems

The number -1101.0010101 is stored in floating point. What would the sign bit be?

The number 0.000010101 is stored in floating point. What would the sign bit be?

The number 11101.00001 is stored in floating point. What would the sign bit be?

Unicode uses ___ bits for each character, which is more than ASCII.

Comparing Unicode to ASCII...

• Unicode has more bits (16) than ASCII (7 or 8)
• Unicode has space to represent more non-English characters
• Storing the same message in Unicode will take more bits than ASCII
• A Unicode string would be longer (more characters) than an ASCII string

How many bits would it take to store the 3-letter word "dog" in Unicode?

Comparing vectors and bitmaps...

• A bitmap version of the graphic will be a bigger file
• Bitmap graphics are more photo-realistic
• Bitmaps are made up of objects and attributes
• Bitmap images can be zoomed in without losing quality

In floating point, increasing the number of bits allocated to the mantissa would:

• Increase the precision
• Increase the range

In floating point, increasing the number of bits allocated to the exponent would:

• Increase the precision
• Increase the range

The first step of the fetch-execute cycle is:

• Set up the address bus with the address of the instruction
• Activate the read line on the control bus
• Fetch the instruction from memory to the processor on the data bus
• Decode and execute the instruction