1.1: The characteristics of contemporary processors, input, output and storage devices

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S O O V D D R V M S L R H D G M X S U T P
U T Q X K E O P A U F E A D S O W L J U V
U L I A E T I K G R R A R P O R R L G K W
M E Y P G M L D N A E D V W L P O V Y O A
A E O T A M N T E H T O A A I M S S I H P
R X Q A R Q Q E T Q N N R R D O S E J X A
D I E B O J T S I H I L D D S R E C I G J
M C E L T F E G C R R Y A N T E C I E G R
A P E T S F E R S A P M R Y A L O V H M X
R E J Q L I B Q T L X E C W T B R E U A Q
C Y O B A Y B D O F I M H U E A P D B X C
I M R J C I S V R M R O I K S M I G R K E
M W J R I Y T G A N T R T L T M T N A C R
A Y P Q T A Y R G Y A Y E K O A L I L I L
N T D D P G W W E V M R C A R R U T X X D
Y I K C O W X V E V T O T O A G M N E C B
D T L G I P K B O W O M U Q G O I I L C P
C A E U L D V S D D D D R T E R T O E F L
O T H P U T C H E V C K E P Y P A P Q Y W
A T Q R X Y J V X C T B X A P J S A B F T
J V X E W X U I Y B Q K U Y W E D L X M M

Clues

  • A multiprocessor is any computer with several processors (each CPU has its own socket). (14)
  • A processor architecture where there is separate storage and signal pathways for instructions and data meaning the CPU can read an instruction and perform a memory access at the same time. (7, 12)
  • An SSD uses microscopic electronic switches to store data, where millions of transistors are either on or off which represents binary data being stored. (5, 5, 7)
  • Data is stored using pits (binary 0) and land (binary 1) and is read using a laser. (7, 7)
  • Examples include mice, tracker-balls, touch-pads and glide-pads. (8, 7)
  • Non-volatile memory whose contents are not lost when the machine is turned off. (4, 4, 6, 3)
  • Pins strike at the surface of the paper where multiple copies can be obtained using carbon paper, but are slow, produce poor quality, are noise and cannot print in colour. (3, 6, 7)
  • Programmed after manufacture and once programmed cannot be changed. (12, 3, 4)
  • This is commonly used in main memory where a logical 1 is used to charge a capacitor, and a 0 to discharge it, and needs to be constantly refreshed to prevent discharging. (7, 3, 4)
  • This is data stored using magnetic polarities with each one either a zero or one. A read-write head is able to detect and modify magnetisation of the material. (8, 7)

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