Ict Flashcards

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1
Q

What does INP do?

A

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

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2
Q

STA 99

A

Store the contents of the accumulator in the mailbox 99.

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3
Q

INP

A

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

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4
Q

ADD 99

A

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

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5
Q

OUT

A

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

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6
Q

HLT

A

Stop working.

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7
Q

Input devices

A

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

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8
Q

Output devices-

A

Printer
Headphones
Speaker

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9
Q

Assembly language code-

A
Get input from user
Store this in box 99
Get another input from user 
Add the contents of box 99
Output this
Stop
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10
Q

This section represents the boxes of memory?

A

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

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11
Q

This is what the ‘computer’ is currently doing

A

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

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12
Q

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

A

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

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13
Q

These are the input and output areas?

A

Loads of numbers with two black blocks top and bottom.

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14
Q

Modifying program area?

A

Looks like an alien thing

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15
Q

CPU- what is the program counter?

A

Contains the current ‘step’ in the program

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16
Q

CPU- what is the instruction register?

A

Contains the current instruction (EG ‘ADD’)

17
Q

CPU - what is the address register?

A

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

18
Q

Accumulator - CPU?

A

Contains the data currently in use

19
Q

CPU- what is the arithmetic unit?

A

Arithmetic unit- competes calculations

20
Q

Input is what?

A

Computer receives some information

21
Q

Process?

A

Computer does ‘something’ with the information

22
Q

Output?

A

Computer outputs information