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WorksheetsBTEC Level 3 Nat Ext Dip in Computing - Unit 2.1 Hardware and Software
Total questions: 10
Worksheet time: 7mins
Which of the following is NOT strictly a computer system?
Server
Mobile Device
Personal Computer
Photocopier
Embedded System
Fan noise is so loud that hearing protection is required for people spending more than 15 minutes in a room that contains this type of computer system.
Multi-functional Device
Personal Computer (Laptop)
Supercomputer
Server
Embedded System
Why is SSD better technology for backing/secondary storage in an eBook (mobile device) than HDD?
SSD is cheaper and smaller than HDD
SSD is smaller and faster than HDD
SSD is faster but less robust than HDD
HDD does not generate as much heat as SSD
Why would a personal computer (PC) system have HDD technology for backing/secondary storage rather than SSD?
SSD is too volatile for some PCs
The PC is too old and does not support SSD
The PC owner does not have enough cache to upgrade from HDD to SSD
SSD technology costs at least 3 times as much money as HDD
How does cache memory affect the performance of a computer system? Tick ALL correct answers.
Processors contain cache memory - it is used for command queuing to help program code run faster when commands are brought in from slower RAM to quicker CPU.
Cache memory is non-volatile, it can store information when the system is powered down, but it is very slow and information easily becomes fragmented
Cache memory is very slow but essential for the processor to continue working when the RAM is too busy
Cache memory is fast memory between a slow device and a quicker device - it prevents the the quicker device from slowing down when the slower device is used.
Without a way of removing heat, a modern CPU would get so hot that it would melt down in around a minute.
True
False
Which answers correctly describe an RJ45 connector? Tick ALL correct answers.
RJ45 is a type of connector commonly used for Ethernet networking.
The "RJ" stands for "registered jack," since it is a standardised networking interface.
The "45" simply refers to the number of the interface standard.
Each RJ45 connector has eight pins, which means an RJ45 cable contains eight separate wires.
All of the above
Serial ATA (aka SATA) stands for ...
Serial Advanced Technology Adaptor
Serial Attachment
Serial Anti-telepathy Agent
Serial Apple Talk Agent
NAND stands for ________ and is the kind of memory used in SSD's , USB Memory Sticks, and SD cards.
NOT AND OR
NOT OR
NOR
NOT AND
A System On a Chip (SOC) is a single integrated circuit (IC) chip which performs all the functions of a computer system. They are used in mobile systems ...
because they are inexpensive and easy to repair
because they don't need have fast processors or lots of memory
because of their small size and low power consumption
because they use rechargeable batteries
