topics 1 &2
In base 16, the digit E corresponds to what decimal value?
14
How many digits are there in the hexadecimal number system?
16
In which decade was the first generation of computers developed?
1950s
In which decade did the first operating systems begin to be developed?
1960s
When did Intel introduce the 4004 chip?
1971
Which of the following is a value less than zero, with a sign opposite to its positive counterpart?
negative number
Which of the following terms best describes systems software areas?
...
The power corresponding to the least significant digit in the positional notation in any base is:
0
How many digits are there in the decimal number system?
10
What is the decimal value of the largest digit in the hexadecimal number system?
15
How many digits are there in the binary number system?
2
What is the largest decimal value you can represent with two hexadecimal digits?
255
What is the largest decimal value you can represent with six binary bits?
63
Who designed the Difference Engine?
Babbages
A rational number is any number that can be expressed without a fractional part.
False
A vacuum tube was a device used in the third generation of computers.
False
The abacus was the world's first electronic digital computer.
False
The base of the hexadecimal number system is 15.
False
The digits used in any base are 1 through the base number.
False
The letter C is used to represent the number 11 in hexadecimal.
False
The value of each position in a number system is determined by subtracting the base from the position number.
False
Who invented the punched card?
Jacquard
Who built the first gear-driven mechanical calculator that did addition and subtraction?
Pascal
In which software generation were the high-level programming languages developed?
Second
A byte is made up of eight binary digits.
True
A natural number is the number 0 or any number obtained by adding 1 to a natural number.
True
Ada Augusta, Countess of Lovelace, is credited with being the first programmer.
True
Algorithmic thinking is a necessary skill in Computer Science.
True
An abstraction is a mental model that removes or hides complex details.
True
An algorithm is a set of steps that defines how a task is performed.
True
Applications programmers use the tools built by systems programmers.
True
Assembly-language is first generation software.
True
Computer software is the collection of programs that provide the instructions that a computer carries out.
True
Earliest machine programs were hard wired.
True
Representing a number in base 5 sometimes requires more digits than representing that same number in base 10.
True
Spreadsheets and word processors are known as software applications.
True
Starting from the right, every group of four binary digits can be read as one hexadecimal digit.
True
The Internet is descended from a U.S. government-sponsored network called the ARPANET.
True
The base of a number system determines the number of digits used in the system.
True
The category of numbers called integers includes negative numbers.
True
The fourth generation of computer hardware was characterized by large-scale integration.
True
The personal computer was introduced in the fourth generation of computer hardware.
True
To find the decimal equivalent in a new base you just divide the decimal value by the new base.
True
Two hexadecimal digits can be stored in one byte.
True
What is the lowest base in which the number 10 could be a valid number?
binary
What is a single binary digit called?
bit
What is a group of eight binary digits called?
byte
Which of the following terms best describes circuit boards, keyboards, and disk drives?
computer hardware
What is the lowest base in which the number 987 could be a valid number?
decimal
Computational Science is one of the Systems areas.
false
Which software generation does the Internet belong to?
fifth
In which software generation did the distinction between systems programmers and applications programmers first surface?
first
Which of the following describes a natural number, the negative of a natural number, or zero?
integer
Which of the following language characterizes the first software generation?
machine language
Which of the following is an integer or the quotient of two integers (excluding division by zero)?
rational number
To which hardware generation does core memory belong?
second
In which hardware generation were integrated circuits introduced
third
What device replaced the vacuum tube in second generation computers?
transistor
A number in any base can be expressed using a positional notation.
true
The number 10 represents the base value in every number system.
true