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Summary AP Computer Science Exam questions and answers
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AP Computer Science Exam questions and answers
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AP Computer Science Exam questions andanswers
What advantages do computers have over humans? - Faster, more accurate,
better memory
Many so-called computer errors are caused by: - sloppy data entry
How does Morse Code work? - It uses short and long signals, representing dots
and dashes
How does the binary system used by a computer work? - It uses 1s and 0s,
representing electrical current that is on or off
Which of the following describes ASCII? - It uses 1 byte to store a character and is
used by many programming languages
Which of the following describes Unicode? - It uses 2 bytes to store a character
and is used by Java
How BITs are in a byte? - 8
,AP Computer Science Exam questions and
answers
What number system do people in America use? - Base-10 (decimal)
What number system does the computer use to process information? - Base 2
(binary)
What did early computers use to store each bit? - A vacuum tube
Characteristics of early computers - very large, programmed by people switching
wires, used vacuum tubes
Characteristics of modern computers - small enough to fit on a desk, programmed
with languages like Java, use microchips
In computers, the main circuit board with all the primary computer components is
called the - motherboard
Types of computer chips - Ram, Rom, Cpu
,AP Computer Science Exam questions and
answers
Which of the following stores permanent information and is not erased when the
computer is turned off - Rom
Which of the following stores temporary information and is erased when the
computer is turned off - Ram
Which is of the following is the brains of the computer - Cpu
How many bytes are in a megabyte - 1 million
How many bytes are in a terabyte - 1 trillion
How many bytes are in a kilobyte - 1000
How many bytes are in a gigabyte - 1 billion
Information on a disk or tape is stored magnetically by arranging iron oxide which
most people call... - rust
, AP Computer Science Exam questions and
answers
Which of the following stores/retrieves information using laser light - CD-Rom
A _______ is a sequence of instructions, which enables a computer to perform a
desired task - program
What language is understood by the computer - Machine code
Which language is made up of 1s and 0s - Machine code
Which language will you be learning in APCS - Java
Which language was created by Grace Hopper for the business community and
the armed forces - COBOL
Which language was the first successful programming language - FORTRAN
Which language was designed for mathematicians, scientists, and engineers? -
FORTRAN
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