Basic English for Computing / Basic English for Computing (Units) / Student A Pair work

Unit 4

Task 10 1 ehg@ed.ac.uk

2 http://www.cltr.uq.oz.au

3 agoralang.com/agora/ agoranews_cur rent. html

4 http://www.ncl.ac.uk/~njw5

5 elvis@aol.com

Unit 7

Task 5 Screen size 21 inches

Aperture grill pitch 0.28 mm

Maximum resolution 1600x1200

Refresh rate 80 Hz

Price £448

Unit 8

Task 11 Storage device Capacity

Double density floppy 720 Kb

High density floppy 1.44Mb

Hard disk 6Gb

CD-ROM

Large hard disk

Tape

Unit 22

Task 12 Change 1011 binary to decimal. Step 1

place values 8 4 2 1

binary 10 11

Step 2

(1x8)+(0x4)+(1x2)+(1x1) =1

Start like this: Write down the place values: 8, 4, 2 and 1. These are powers of 2.

Unit 24

Task 12 Biometrics - eye scanning

1 Person arrives at airport scanner

2 Person looks through eyepiece

3 Laser scans eye and records microscopic details

4 Computer translates data into unique barcode

5 Computer checks digital image against central database