EECS review test 1
what tracks the progress of a program in execution
memory mgt
this is a very small amount of very fast memory that is built into the CPU (central processing unit) in order to speed up its operations by providing quick access to commonly used values.
A register
this may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters)
A register
a unit in a computer (part of the CPU) that carries out arithmetic and logical operations.
ALU
what do we call the exchange of register information that occurs when one process is removed from the CPU and another takes its place
context switch
in GIMP, shift+C is the shortcut to the BLAK the image
crop
1387 could be a number
dec/hex
representing text: A= 65 B=66 a=97 b=98
decimal character
#17 test 2 what's the result of EXCEL formula =LEFT(RIGHT("hello", 4),3) produce
ell h e l l o 0 1 2 3 4 take only 2-5 (ello) e l l o 1 2 3 4 take first 3 ans: e l l 1 2 3
BLANK involves replacing common words with single characters that would not normally be in text
encoding ? #17
True or False? The digits used in base 8 are 1 through 8
false
representing text: A= 41 B=42 a=61 b=62
hexadecimal character
1387 could be a ? number
hexadecimal or decimal?
the integrated circuit (IC) was developed
jack kilby, texas instruments
w whom did the idea of using holes in paper to communicate algorithms to machines originate
jacquard?
this involves replacing common works w single characters not normally be in text
keyword
which type of touch screen could you NOT use wearing a runner glove
capacitative touch screen
this may consist of: a single cell a row or set of rows a column of set of columns a rectangular grid
cell range
-146 in 10bits two's complement representation
check test 1 number13
What is the decimal value of the following binary value in two's complement: 11010111?
-41
range of the 4-bits 2's complement is
-8 to +7
• A coordinated network of zombie computers is called a
"botnet" DDOS:
Malicious hackers use trojansto take control of network devices; compromised computers are called
"zombies" DDOS:
18 test 1 If # character is the flag character in run length encoding, how would the following string be compressed XXXXXYYYYABBCCCCCC
#X5#Y4ABB#C6
- symbols - KEYWORD ENCODING o as o the o and o that o must o well o those
- symbols o as ^ o the ~ o and + o that$ o must& o well% o those#
The following binary value represents a real number: 10011100. Using the same 8-bit floating-point representation that was presented in lecture, determine its decimal value.
-1.2
the first portable personal computer was the
osborne I
suppose you took a photo of a tall condo tower from ground level. you pointed your camera up and now th building looks like its falling over backwards. what image editing tool would you use to fix it
perspective tool
this is one of a small set of data holding places that are part of the computer processor.
processor register (CPU register)
this is a small memory location in the CPU
register
In floating point notation, the bit pattern is divided into 3 components: e.g. 0 1 1 0 1 0 0 1 sign (original value): exponent: mantissa:
sign (original value): 0 = positive 1 = negative exponent: 0xx = positive (move radix right) 1xx = negative (move radix left) xx = number of places moved mantissa: Interpret as ".1001"
True or False? Two hexadecimal digits can be stored in one byte.
t
The following binary value represents a real number: 01110101. Using the same 8-bit floating-point representation that was presented in lecture, determine its decimal value.
0.005
Represent the decimal number 37 as an 8-bit two's compliment binary number.
00100101
Represent the decimal number 57 as an unsigned binary number.
00111001
in a 12-bit two's complement number system -2048 has the following representation
100000000000
decimal natural number 175 expressed in standard binary is
10101111
what's the 10-bit 2's complement representation of -146
1101101110 #13 test 1
Represent the decimal number -23 as an 8-bit two's compliment binary number.
11101001
decimal equivalent of the unsigned binary (natural) number 10010110 is
150
base digits 0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F
16
which of the following is the hexadecimal equivalent of the unsigned binary number 111000111
1c7
base digits 0,1
2
an audio signal digitized by sampling its value at regular intervals. a sampling rate of around BLANK times per second is needed to create a reasonable sound reproduction
4000
given the ASCII code for B is 66, expressed as a decimal value, what's the ASCII code in hexadecimal for the letter H
48
base digits 0,1,2,3,4
5
how many bits would be needed to represent a character set containing 45 characters
6
largest digit in the octal number
7
Convert the following binary number to hexadecimal: 11011011
: DB
#19-25 on test 1 write the formula that will convert the values in degress in column A into radians into column B
=RADIANS(degrees)
both inputs are 1, output 0, otherwise its all 1
Nand
what's the name of the register that contains the address of the next instruction to be executed
PROGRAM COUNTER
Suppose the following bit pattern stores a floating point value, based on the organization convention just presented(1-bit sign, 3-bit exponent, 4-bit mantissa). What is the value? e.g. 0 1 1 0 1 0 0 1
Putting it all together: • (positive) .9 • Move the radix point (decimal point) 2 places left .009
number of picture elements used to represent a picture is called the
RESOLUTION
BLANK works best when used for video that changes little from frame to frame, such as a scene that contains little movement
TEMPORAL compression
It tells the computer's memory, arithmetic/logic unit and input and output devices on how to respond to a program's instructions.
The control unit (CU)
this is a component of a computer's central processing unit (CPU) that directs the operation of the processor.
The control unit (CU)
which excel function uses the left column of a table as its lookup vector
VLOOKUP
in which state does a process reside if it does not have a needed resource
WAITING state
If # character is the flag character in run length encoding, how would the following compressed version be a uncompressed string #X5#Y4ABB#C6
XXXXXYYYYABBCCCCCC
#18 test 2 what's the result of evaluating the excel expression =IF(OR(AND(A1,B1),A1),"Y","N")
Y WHEN A1 IS 1 AND B1 IS 0...
which of the following is not a valid colour model CMYK HSL RGB VBR YUV
ans VBR
base digits 0,1,2,3,4,5,6,7,8,9
base digits10
base digits 0,1,2,3,4,5,6,7
base digits8
A single binary digit is called a(n)
bit
this connects all the internal components of a computer, such as CPU and memory, to the motherboard.
bus
