CS-6 (LESSON 2) Flashcards
Types of devices that cannot be reprogrammed. Their function are very specific and usually has one function only
F I X E D C O M P U T E R S
Consist of programs that or devices that are programmed to
do more than 1 task.
S T O R E D C O M P U T E R S
The worlds first programmable electronic digital computer.
C O L O S S U S
C O L O S S U S was Built in _ at _
to help break codes in WWII
1943, Bletchley Park in the UK
E N I G M A
Alan Turing
Hungarian-American mathematician who was involved with the Manhattan Project and early computer science.
J O H N V O N N E U M A N N
Steps In The Von Nuemann Architecture
FETCH
DECODE
EXECUTE
STORE
In computing, a _ is a hardware or software component that stores data so that future requests for that
data can be served faster; the data stored in a cache might be the result of an earlier computation or a copy of data stored elsewhere.
cache
Responsible for decoding the instructions and controlling how the data moves around the CS.
CONTROL UNIT
Carries out the calculations and logical decisions needed by the program instructions.
ALU
Wires that carry data around a computer
BUS
Comp. Arch. Is not a computer but how a computer is built.
Von Nuemann Layout
Registries are memory locations with specific purposes.
Registers
Stores the ALU Results.
ACCUMULATOR
Keeps memory location tracks for the next queued instruction to deal with; then the PC passes this next instruction to the MAR
PROGRAM COUNTER (PC)
Stores the memory location instruction for
fetching.
MEMORY ADDRESS REGISTER (MAR)
Register that is used to store any data or instructions fetched from memory or any data that is to be transferred to, and stored in memory.
MEMORY DATA REGISTER (MDR)
