1. How would string "Plan" be represented in the EBCDIC standard? Give the hexadecimal, decimal, and binary forms for the EBCDIC standard.

	P	l	a	n
Hexadecimal	B7	B3	A1	B5
Decimal	183	179	161	181
Binary	11010111	11010011	11000001	11010101

How many bytes does the string "Plan" occupy? (Do not count the double quotes.)

In EBCDIC: ______4_______ In Unicode: _______8______ (UTF-16 standard)

2. A high-definition 25" Dell G2524Hmonitor has the resolution 1,920 1,080 pixels. You can see the monitor at the following link.Dell 25 inch Gaming Monitor (G2524H) - Computer Monitors | Dell USA

1. What is the size in bytes and MB of the video memory to store the true color image of the size1,920 1,080pixels displayed on this monitor? (Note that in the true color image you need 3 bytes for each pixel.

1920 * 1,080 = 2,073,600

2,073,600 * 3 = 6,220,800

1. This Dell monitor with a resolution 1,920 1,080pixelsgenerates true color images at a frame rate of 100 frames/sec. How much storage expressed in GB would a 3-minute video clip displayed on this monitor consume?

622,080,000 * 180 = 111,974,400,000 Bytes conversion to GB = 111.9744

3.Approximately how many images of the size 2MB can be stored on the following devices:

(a) a 2.7GB DVD-ROM, and

(b) the Samsung 1TB (terabyte) Solid State Drive (SSD)?

(You must show your calculations! Note that 1GB = 1024 MB, 1TB = 1024 GB.

1. 2.7GB DVD-ROM

1. 1TB SSD

4. An analog wave representing the song titled "Shallow" by Lady Gaga and Bradley Cooper from the movie "A Star is Born"https://www.youtube.com/watch?v=3Z7ddmHlbdU is sampled

with the frequency of 22,050 Hz during its conversion from the analog form to the digital form. Assume that each sample is stored in 3 bytes. (Before you work this exercise, you may click on the above link to listen to this song.) You must show your calculations!

How many MB would it take to store 4 minutes and 18 seconds of the uncompressed sound?

If a compression ratio is 30:1, how many MB would that sound occupy after compression.

5. Convert this 8-bit number written in 2's complementary binary form

(10110100)₂

to the decimal number ( )₁₀

Note: Because the leftmost bit (the sign bit) is 1, the number is negative! The leftmost bit 1 is worth -1*2⁷. It contributes to the sign and the magnitude of the number.

6. Assume that some computers used a 22-bit word to store numbers. What is the decimal range for this word size for:

(a) unsigned numbers: _________________________

(b) signed numbers: _________________________

What is the number of unique patterns 22 bits can store? _________________

7.Find the 16-bit (2-byte) 2's complementary binary representation for the decimal number

(-28)₁₀. (Note that when you convert the 1's complement to the 2's complement a carry maybe generated. You must show your calculations!