1 Flashcards
Converts text, sounds, and images into electrical signals
Data representation
Manipulates simple “on” and “off” signals to perform complex
tasks
Digital electronics
Works with discrete - distinct or separate - data or digits, such as 1
and 0
Digital device
Works with continuous data
Analog device
Used in arithmetic operations
Numeric data
Consists of letters, symbols, and numerals not used in
arithmetic calculations
Character data
Represented by a series of bits in a digital computer
Character data
•Binary digit
•Abbreviated as a lowercase “b”
Bit
Digital electronics
• Composed of eight (8) bits
•Abbreviated as an uppercase “B
Byte
Digital electronics
• Composed of four (4) bits
•A halfway between a little bit and a big byte
Nibble
Digital electronics
Hardwired into the processor’s circuitry comprising of basic
arithmetic and logical operations, fetching data, and clearing
registers
Instruction set
The electronic that holds place for instructions and data which the
microprocessors can reach quickly
Memory
technique of collecting, manipulating, and distributing data to
achieve certain functions
Data processing
Convert raw data into information for decision making
Data processing
collection of objects,
procedures, or
techniques that
interact in regulated
manner to form an
organized whole
Computer systems
integrates and coordinates overall operations
•composed of three (3) units:
Central processing unit
Output subsystem, input subsystem, memory subsystem
