Question 1, May 2021, Pearson Edexcel International GCSE (9-1) Information and Communication Technology, Paper-1

 A family uses digital devices in their everyday lives.

Howard buys a tablet computer.
(a) Give two types of wireless connectivity that the tablet computer could use. (2)
1 The tablet computer could use Wi-Fi to connect it to a network.
2 The tablet computer could use Bluetooth, a wireless connectivity that lets devices to connect over short distances.

(b) Give two types of peripheral storage media that the tablet computer could use. (2)
1 The tablet computer could use flash media which are more energy-efficient as they do not have moving parts.
2 The tablet computer could use hard disks to store data.

(c) Which one of these is required for the tablet computer to connect to the Internet? (1)
A GPS
B ISP
C LAN
D NFC
B ISP

(d) Which one of these is found in all computers? (1)
A Control software
B Keyboard
C Operating system
D Processor
D Processor

(e) Which one of these would be used as a desktop replacement computer? (1)
A Laptop
B Mainframe
C Media Player
D Server
A Laptop

(f) Describe how tablet computers allow people to work from home. (2)
Tablet computers have Wi-Fi connectivity to provide access to the Internet. Some of them have SIM card slots to allow internet connectivity using the mobile phone network, so that they can be online when they are not within range of a Wi-Fi signal and get access to the cloud storage and allow people to work with hosted applications from home.

(g) A CPU has 16MiB of cache memory.
Construct an expression to show how many bits are in 16MiB. (3)
1 byte = 8 bits
1MiB = 1024 x 1024 x 8 bits
16MiB = 1024 x 1024 x 8 x 16 bits
= 134217728 bits

(h) Howard sells his old hard disk drive to Steve.
(i) Complete the table by ranking these storage devices in order of the read/write speed.
A) Hard disk drive
B) Optical disk drive
C) Solid state drive




(ii) Describe two factors that affect the read/write speed of a hard disk drive. (4)
A read/write head moves on an arm across tracks on the platter. The amount of time that it takes the read/write head to access data on the tracks is determined by how fast the cylinder of platters spins and how fast the read/write head is moved across the tracks.

(iii) Explain one benefit to the environment of buying previously-owned devices. (2)
Buying previously-owned devices reduces the impact on food chain.

(iv) Which one of these is the type of software Howard should use to make copies of his applications? (1)
A Control
B Office-productivity
C Project management
D Utility
D Utility




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