Test 1 Flashcards
(68 cards)
Computer Architecture
set of disciplines that describes a computer system by specifying its parts
and their relations
CPU
The circuitry in a computer that controls the manipulation of data is called the central processing
unit.
Bus
The bus is the electronic connection that connects all the devices on the computer to the CPU and
each other.
Main Memory
Main Memory is the high speed memory associated with the CPU (but not included in
the CPU) that stores computer programs for execution.
Machine Language instruction
consists of an instruction code followed by an address or addresses.
compiler
Coverts higher level language of instructions to machine code
Clock
circuitry in the control unit that provides for coordinates instruction execution
FIRMWARE
instructions stored in read only memory in devices to speed operations
Machine cycle
Fetch, Decode and Execute
Program Counter
internal counter that keeps up with the address of the next instruction to be decoded
for execution.
Instruction Register
used to hold the instruction being decoded during execution.
motherboard
a large circuit board that holds computer components. (extend with daughter boards and also called main board)
Bits
Binary digits (Information is encoded in 1s and 0s)
George Boole
-Father of logic
-Created Boolean Operations that manipulates true/false values
Herman Hollerith
-Mechanical Engineering teacher (MIT)
-Created an electrical tabulation system
-First computer
Herman Hollerith (1860 – 1929)
Applied the concept of representing information as holes in
paper cards to speed up the tabulation process in the 1890 US census.
During WWI (1940s)
they were used by the military for firing calculations.
What were early computers?
Merely electronic calculators
1945
John von Neumann develops the definition of modern computer architecture.
1947
Bell Labs develops the first transistor
1954
the first commercial, non government computer is delivered to the GE plant in Louisville Ky
1956
Grace Hopper develops the first compiler (COBOL)
1960
Transistors replace vacuum tubes for computer storage
1965
integrated circuits are applied to technology