PSU CMPSC 101 FINAL EXAM – ELLA
QUESTIONS 100% ANSWERED!!
What is the Central Processing Unit (CPU) (also called Processor) -
ANSWERFetches and follows a set of simple instructions
What is Main Memory? - ANSWERStores the executing program and its data in
RAM
What is Secondary Memory? - ANSWERStores permanent records (files). Non-
volatile
What is ALU (Arithmetic and Logic Unit)? - ANSWERPerforms math operations
What is the Control Unit? - ANSWERCoordinates all of the computer's operations
What is a bit? - ANSWERRepresents two values, 0 and 1
What is the Byte size limits? - ANSWER0 and 255
0 = all bits off
255 = all bits on
What is the most important coding scheme? - ANSWERASCII (American Standard
Code for Information Interchange)
What is high-level language? - ANSWERDesigned to be easy for humans to read
and to write programs in, but too complicated for the computer to understand
What is complied language? - ANSWERA separate file is created for translated
binary code
What is low-level language? - ANSWERConsistes of simple instructions which can
be understood by the computer after a minor translation
Why is ASCII limited? - ANSWERDefines codes for only 128 characters
What is unicode? - ANSWERIt is becoming standard. Compatible with ASCII. Can
represent characters for another language
What is the operating system? - ANSWERAllocates computer's resources and allows
communication between user and computer
What is an algorithm? - ANSWERA set of well-defined steps for performing a task or
solving a problem
QUESTIONS 100% ANSWERED!!
What is the Central Processing Unit (CPU) (also called Processor) -
ANSWERFetches and follows a set of simple instructions
What is Main Memory? - ANSWERStores the executing program and its data in
RAM
What is Secondary Memory? - ANSWERStores permanent records (files). Non-
volatile
What is ALU (Arithmetic and Logic Unit)? - ANSWERPerforms math operations
What is the Control Unit? - ANSWERCoordinates all of the computer's operations
What is a bit? - ANSWERRepresents two values, 0 and 1
What is the Byte size limits? - ANSWER0 and 255
0 = all bits off
255 = all bits on
What is the most important coding scheme? - ANSWERASCII (American Standard
Code for Information Interchange)
What is high-level language? - ANSWERDesigned to be easy for humans to read
and to write programs in, but too complicated for the computer to understand
What is complied language? - ANSWERA separate file is created for translated
binary code
What is low-level language? - ANSWERConsistes of simple instructions which can
be understood by the computer after a minor translation
Why is ASCII limited? - ANSWERDefines codes for only 128 characters
What is unicode? - ANSWERIt is becoming standard. Compatible with ASCII. Can
represent characters for another language
What is the operating system? - ANSWERAllocates computer's resources and allows
communication between user and computer
What is an algorithm? - ANSWERA set of well-defined steps for performing a task or
solving a problem
