ITC FINALS EXAM UPDATED QUESTIONS AND ANSWERS
Processor, Main Storage, Input, and Output - CORRECT ANSWER✅✅Main Units of a Computer
Processor - CORRECT ANSWER✅✅interprets and carries out the basic instructions that operate a
computer; it may also be called the central processing unit or the CPU.
Control Unit - CORRECT ANSWER✅✅directs the flow of instructions and data inside the CPU and acts as
a traffic controller; it interprets each instruction and initiates the appropriate action to carryout.
Arithmetic and Logic Unit (ALU) - CORRECT ANSWER✅✅performs the arithmetic and logical calculations
inside the CPU
Registers - CORRECT ANSWER✅✅temporarily holds data and instructions; they are small high-speed
location inside the processor
System clock - CORRECT ANSWER✅✅controls the timing of computer operations; it generates regular
electronic impulses (ticks) that sets the operating pace of the system unit components
Main Storage - CORRECT ANSWER✅✅The memory stores instructions waiting to be executed by the
processor, the data needed by those instructions and the results of processed data (information)
1. Operating system and other system software 2. Application programs 3. Data / Information -
CORRECT ANSWER✅✅Memory stores three (3) basic types of items:
RAM (Random Access Memory) - CORRECT ANSWER✅✅stores data and instructions for processing;
volatile (Volatile means the data/program in memory are erased once power is cut off)
Cache memory - CORRECT ANSWER✅✅high speed holding area ; for those information which are
frequently used by the CPU
, ROM (Read Only Memory) - CORRECT ANSWER✅✅contains stored instructions that a computer
requires to be able to do its basic routine operations; non-volatile
CMOS (complementary metal-oxide semiconductor) - CORRECT ANSWER✅✅provides information
every time computer is turned on, e.g. RAM capacity, date/time
Input Device - CORRECT ANSWER✅✅is a hardware or peripheral device used to send data to a
computer. It allows users to communicate and feed instructions and data to computers for processing,
display, storage and/or transmission.
Output Device - CORRECT ANSWER✅✅is any device used to send data from a computer to another
device or user
Secondary or Auxiliary Storage Devices - CORRECT ANSWER✅✅Is where data are stored permanently. It
is outside the primary storage and serves just like a filing cabinet.
Magnetic tape - CORRECT ANSWER✅✅Data are stored serially and can only be accessed in a serial
manner; high capacity; cheap
Magnetic Disk - CORRECT ANSWER✅✅- Direct access storage media; high capacity and fast retrieval
speed; Reads/ write data through the use of electromagnetism
Optical Disc (CD, DVD, Blu-ray) - CORRECT ANSWER✅✅- Read / write data through light/laser beams
Solid State Drives - CORRECT ANSWER✅✅Use integrated circuit assemblies as memory
George Boole - CORRECT ANSWER✅✅developed an algebraic system to treat the logic functions, which
is now called Boolean algebra.
Claude Shannon - CORRECT ANSWER✅✅is said to be the founder of Digital Circuit Design; applied
boolean algebra to telephone switching circuits. And it was then the engineers realized that boolean
algebra could be used to analyze and design computer circuits
Processor, Main Storage, Input, and Output - CORRECT ANSWER✅✅Main Units of a Computer
Processor - CORRECT ANSWER✅✅interprets and carries out the basic instructions that operate a
computer; it may also be called the central processing unit or the CPU.
Control Unit - CORRECT ANSWER✅✅directs the flow of instructions and data inside the CPU and acts as
a traffic controller; it interprets each instruction and initiates the appropriate action to carryout.
Arithmetic and Logic Unit (ALU) - CORRECT ANSWER✅✅performs the arithmetic and logical calculations
inside the CPU
Registers - CORRECT ANSWER✅✅temporarily holds data and instructions; they are small high-speed
location inside the processor
System clock - CORRECT ANSWER✅✅controls the timing of computer operations; it generates regular
electronic impulses (ticks) that sets the operating pace of the system unit components
Main Storage - CORRECT ANSWER✅✅The memory stores instructions waiting to be executed by the
processor, the data needed by those instructions and the results of processed data (information)
1. Operating system and other system software 2. Application programs 3. Data / Information -
CORRECT ANSWER✅✅Memory stores three (3) basic types of items:
RAM (Random Access Memory) - CORRECT ANSWER✅✅stores data and instructions for processing;
volatile (Volatile means the data/program in memory are erased once power is cut off)
Cache memory - CORRECT ANSWER✅✅high speed holding area ; for those information which are
frequently used by the CPU
, ROM (Read Only Memory) - CORRECT ANSWER✅✅contains stored instructions that a computer
requires to be able to do its basic routine operations; non-volatile
CMOS (complementary metal-oxide semiconductor) - CORRECT ANSWER✅✅provides information
every time computer is turned on, e.g. RAM capacity, date/time
Input Device - CORRECT ANSWER✅✅is a hardware or peripheral device used to send data to a
computer. It allows users to communicate and feed instructions and data to computers for processing,
display, storage and/or transmission.
Output Device - CORRECT ANSWER✅✅is any device used to send data from a computer to another
device or user
Secondary or Auxiliary Storage Devices - CORRECT ANSWER✅✅Is where data are stored permanently. It
is outside the primary storage and serves just like a filing cabinet.
Magnetic tape - CORRECT ANSWER✅✅Data are stored serially and can only be accessed in a serial
manner; high capacity; cheap
Magnetic Disk - CORRECT ANSWER✅✅- Direct access storage media; high capacity and fast retrieval
speed; Reads/ write data through the use of electromagnetism
Optical Disc (CD, DVD, Blu-ray) - CORRECT ANSWER✅✅- Read / write data through light/laser beams
Solid State Drives - CORRECT ANSWER✅✅Use integrated circuit assemblies as memory
George Boole - CORRECT ANSWER✅✅developed an algebraic system to treat the logic functions, which
is now called Boolean algebra.
Claude Shannon - CORRECT ANSWER✅✅is said to be the founder of Digital Circuit Design; applied
boolean algebra to telephone switching circuits. And it was then the engineers realized that boolean
algebra could be used to analyze and design computer circuits
