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Flashcards in Ict Deck (22):
1

What does INP do?

Go to the INBOX, fetch the value from the user, and put it in the accumulator (calculator)

2

STA 99

Store the contents of the accumulator in the mailbox 99.

3

INP

Go to the inbox, fetch the value from the user, and put it in the accumulator (calculator)

4

ADD 99

Add the value stored in mailbox 99 to whatever value is currently on the accumulator (calculator)

5

OUT

Copy the value from the accumulator (calculator) to the OUTBOX.

6

HLT

Stop working.

7

Input devices

Keyboard, scanner, mouse, USB , microscope, touch screen & web cam

8

Output devices-

Printer
Headphones
Speaker

9

Assembly language code-

Get input from user
Store this in box 99
Get another input from user
Add the contents of box 99
Output this
Stop

10

This section represents the boxes of memory?

Looks black on the right side and the other side has white and the instruction register in the middle

11

This is what the 'computer' is currently doing

Loads of numbers on the right side 000 etc and has RAM on the top

12

This section is where we write out program for the computer to run.

Black on the left hand side, loads of numbers on the right

13

These are the input and output areas?

Loads of numbers with two black blocks top and bottom.

14

Modifying program area?

Looks like an alien thing

15

CPU- what is the program counter?

Contains the current 'step' in the program

16

CPU- what is the instruction register?

Contains the current instruction (EG 'ADD')

17

CPU - what is the address register?

Contains the memory location to do something (e.g. 45)

18

Accumulator - CPU?

Contains the data currently in use

19

CPU- what is the arithmetic unit?

Arithmetic unit- competes calculations

20

Input is what?

Computer receives some information

21

Process?

Computer does 'something' with the information

22

Output?

Computer outputs information