Test
computer science
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Preguntas del test (51)
1A general purpose computer is a computer designed to carry a wide range of [blank_start]instructions[blank_end].
- Ainstructions
2What is an application?
- AA piece of hardware that allows the user to perform a specific task
- BA software program that allows a user to perform a specific task
3Hardware is the [blank_start]physical[blank_end] [blank_start]components[blank_end] of the computer.
- Aphysical
- Bcomponents
4Software is the [blank_start]programs[blank_end]/applications that run on the computer.
- Aprograms
5Which on these are input devices?
- AMonitor
- BKeyboard
- CMouse
- DSpeaker
6The CPU has 2 functions which are to [blank_start]process[blank_end] data and instructions and [blank_start]control[blank_end] rest of computer system.
- Aprocess
- Bcontrol
7All programs and [blank_start]data[blank_end] processing are run in the CPU and all [blank_start]hardware[blank_end] components to some extent are controlled by CPU.
- Adata
- Bhardware
8Select all of CPU's components
- AAlgorithm
- BALU
- CROM
- DRAM
- EControl Unit
- FCache Memory
9In the fetch stage the CPU asks the RAM for some [blank_start]data[blank_end] or [blank_start]instruction[blank_end] from the [blank_start]main[blank_end] memory sent though a piece of [blank_start]hardware[blank_end] called the [blank_start]address[blank_end] bus. This data is then transferred from the RAM to the CPU on another piece of hardware called the [blank_start]data[blank_end] bus.
- Adata
- Binstruction
- Cmain
- Dhardware
- Eaddress
- Fdata
10In the decode stage the cpu takes the instructions/[blank_start]data[blank_end] and [blank_start]understands[blank_end] it by converting it into [blank_start]machine[blank_end] code. The CPU decodes the instructions and gets things ready for the next stage.
- Adata
- Bunderstands
- Cmachine
11In the execute stage all the data [blank_start]processing[blank_end] occurs and instructions are [blank_start]carried[blank_end] [blank_start]out[blank_end]. Once the cycle is complete another one begins.
- Aprocessing
- Bcarried
- Cout
12Embedded systems are computers [blank_start]built[blank_end] [blank_start]into[blank_end] other devices. They are often used as [blank_start]control[blank_end] systems(monitor and control machinery).
- Abuilt
- Binto
- Ccontrol
13Embedded systems are usually dedicated to a [blank_start]single[blank_end] task and are generally [blank_start]easier[blank_end] to design and [blank_start]cheaper[blank_end] to produce and more [blank_start]efficient[blank_end] at doing their task than a general purpose computer.
- Asingle
- Beasier
- Ccheaper
- Defficient
14The CPUs processing power depends on 3 different characteristics : [blank_start]clock[blank_end] speed, number of [blank_start]cores[blank_end], [blank_start]cache[blank_end] size.
- Aclock
- Bcores
- Ccache
15The control unit controls the CPU its main function is to manage the [blank_start]fetch-decode-execute[blank_end] cycle. It also controls the flow of [blank_start]data[blank_end] inside and outside the CPU.
- Afetch-decode-execute
- Bdata
16The Arithmetic Logic Unit does all the [blank_start]calculations[blank_end] and performs [blank_start]logic[blank_end] operations and [blank_start]binary[blank_end] shifts it also contains the [blank_start]accumulator[blank_end].
- Acalculations
- Blogic
- Cbinary
- Daccumulator
17The cache memory is very [blank_start]fast[blank_end] and stores [blank_start]regularly[blank_end] used data so the cpu can access it quickly. Cache has [blank_start]low[blank_end] capacity and it more [blank_start]expensive[blank_end] than RAM. There are different levels of cache Level 1 has the [blank_start]lowest[blank_end] capacity and is the [blank_start]fastest[blank_end]. Level 3 has the [blank_start]highest[blank_end] capacity and is the [blank_start]slowest[blank_end].
- Afast
- Bregularly
- Clow
- Dexpensive
- Elowest
- Ffastest
- Ghighest
- Hslowest
18CPUs contain register which [blank_start]tempor[blank_end]arily hold tiny bits of [blank_start]data[blank_end]. They are the [blank_start]fastest[blank_end] type of memory.
- Afastest
- Btempor
- Cdata
19Select all the CPU registers
- AMDR
- BMAR
- CProgram Counter
- DALU
- EControl Unit
- FAccumulator
20The program counter holds the memory [blank_start]address[blank_end] for the instruction in each cycle.
- Aaddress
21Accumulator stores immediate results of [blank_start]calculations[blank_end].
- Acalculations
22Memory Address Register holds the memory [blank_start]address[blank_end] about to be used by the CPU.
- Aaddress
23RAM([blank_start]random[blank_end] [blank_start]access[blank_end] memory) is used as [blank_start]main[blank_end] memory. It is high [blank_start]speed[blank_end] and [blank_start]volatile[blank_end]. It is [blank_start]slower[blank_end] than cache but faster than [blank_start]secondary[blank_end] storage.
- Arandom
- Baccess
- Cmain
- Dspeed
- Evolatile
- Fslower
- Gsecondary
24When a computer boots up the [blank_start]operating[blank_end] system is copied from [blank_start]secondary[blank_end] storage to RAM.
- Aoperating
- Bsecondary
25When software applications open they are [blank_start]copied[blank_end] to from secondary storage to RAM and it stays in the until application is [blank_start]closed[blank_end].
- Aclosed
- Bcopied
26The memory data register holds the actual [blank_start]data[blank_end]/[blank_start]instruction[blank_end] fetched from the [blank_start]memory[blank_end].
- Adata
- Binstruction
- Cmemory
27Virtual memory is [blank_start]secondary[blank_end] [blank_start]storage[blank_end] used as extra [blank_start]RAM[blank_end].
- Asecondary
- Bstorage
- CRAM
28Computers have a limited amount of [blank_start]RAM[blank_end]. As applications open the RAM fills with [blank_start]data[blank_end]. When the RAM is full the computer needs to store data, so it moves the data not recently used to [blank_start]virtual[blank_end] memory.
- ARAM
- Bdata
- Cvirtual
29Virtual memory is needed when too many [blank_start]applications[blank_end] are open at once.
- Aapplications
30Data transfer is [blank_start]slower[blank_end] on secondary storage than it is on RAM. Virtual memory makes computer [blank_start]slower[blank_end] as the CPU has to wait while data is [blank_start]swapped[blank_end] between [blank_start]disk[blank_end] and RAM.
- Aslower
- Bslower
- Cswapped
- Ddisk
31ROM([blank_start]read[blank_end] [blank_start]only[blank_end] [blank_start]memory[blank_end]) is [blank_start]non[blank_end]-[blank_start]volatile[blank_end] and it can only be [blank_start]read[blank_end] not written to.
- Aread
- Bonly
- Cmemory
- Dnon
- Evolatile
- Fread
32ROM is a small [blank_start]chip[blank_end] built into the [blank_start]motherboard[blank_end]. It contains all [blank_start]instructions[blank_end] a computer needs to [blank_start]boot[blank_end] up properly.
- Achip
- Bmotherboard
- Cinstructions
- Dboot
33BIOS is [blank_start]Basic[blank_end] [blank_start]input[blank_end] [blank_start]output[blank_end] [blank_start]system[blank_end]
- ABasic
- Binput
- Coutput
- Dsystem
34As soon as computer is turned on CPU [blank_start]reads[blank_end] the instructions from ROM. This tells CPU to perform [blank_start]self[blank_end] checks, set up the [blank_start]computer[blank_end] and see what hardware is present and copy [blank_start]operating[blank_end] system into [blank_start]RAM[blank_end].
- Areads
- Bself
- Ccomputer
- Doperating
- ERAM
35Although CPU can only [blank_start]read[blank_end] ROM, it is possible to update('[blank_start]flash[blank_end]') the BIOS on a [blank_start]ROM[blank_end] chip.
- Aread
- Bflash
- CROM
36Clock Speed is the number of [blank_start]instructions[blank_end] a single processor core can carry out per [blank_start]second[blank_end] and is measured in [blank_start]Hertz[blank_end]([blank_start]Hz[blank_end]). Most desktop computers have a clock speed around [blank_start]3.5GHz[blank_end].
- Ainstructions
- Bsecond
- CHertz
- DHz
- E3.5GHz
37The higher the clock speed the [blank_start]higher[blank_end] the amount of [blank_start]instructions[blank_end] can be run per [blank_start]second[blank_end].
- Ahigher
- Bsecond
- Cinstructions
38Some CPUs can be [blank_start]overclocked[blank_end] to make them run at a higher clock speed than the factory-set rate. Risks are that it can cause CPU to [blank_start]overheat[blank_end] and [blank_start]high[blank_end] [blank_start]performance[blank_end] cooling systems are usually needed.
- Aoverclocked
- Boverheat
- Chigh
- Dperformance
39Each core in a CPU can process data [blank_start]independently[blank_end]. The more cores a CPU has the more [blank_start]instructions[blank_end] it can carry out.
- Aindependently
- Binstructions
40The cache is the data storage inside the [blank_start]CPU[blank_end]. Cache is much faster than [blank_start]RAM[blank_end]. Larger cache gives CPU [blank_start]faster[blank_end] access to more data which is needed to process.
- ACPU
- BRAM
- Cfaster
41More RAM means [blank_start]faster[blank_end] or [blank_start]smoother[blank_end] system performance. If a computer has too little RAM it may run [blank_start]slowly[blank_end] due to the use of [blank_start]virtual[blank_end] memory.
- Afaster
- Bsmoother
- Cslowly
- Dvirtual
42the more the [blank_start]storage[blank_end] in RAM, the more [blank_start]memory[blank_end] intensive applications it can run smoothly, making it [blank_start]faster[blank_end] overall.
- Astorage
- Bmemory
- Cfaster
43It is easy to upgrade RAM on a PC - it's just matter of replacing the [blank_start]RAM[blank_end] sticks with a [blank_start]higher[blank_end] capacity. If a computer already has enough RAM to run everything the user wants, increasing the RAM may make no [blank_start]difference[blank_end].
- ARAM
- Bhigher
- Cdifference
44GPUs help CPUs process [blank_start]images[blank_end]. GPUs([blank_start]graphic[blank_end] [blank_start]processing[blank_end] [blank_start]unit[blank_end]) are specialised circuits for handling graphics and image [blank_start]processing[blank_end]. They reduce the processing load on the CPU, [blank_start]freeing[blank_end] it to do other things.
- Aimages
- Bgraphic
- Cprocessing
- Dunit
- Eprocessing
- Ffreeing
45Computers have basic GPUs integrated onto the [blank_start]motherboard[blank_end] or [blank_start]CPU[blank_end]. For better graphic performance, a [blank_start]graphics[blank_end] card is often used.
- Amotherboard
- BCPU
- Cgraphics
46Using a high-end graphics card can greatly improved [blank_start]performance[blank_end] in graphic-intensive applications.
- Aperformance
47If all data Is lost once power supply is gone it is known as [blank_start]volatile[blank_end].
- Avolatile
48If all data is still intact when power supply is off it is known as [blank_start]non-volatile.[blank_end]
- Anon-volatile.
49RAM is volatile because it data as small charges of [blank_start]electricity[blank_end] in tiny [blank_start]transistors[blank_end].
- Aelectricity
- Btransistors
50How many characteristics of a storage device are there [blank_start]7[blank_end]
- A7
511. How much data can hold = [blank_start]capacity[blank_end]
2. How fast is data transfer = [blank_start]speed[blank_end]
3. How easy is it to move = [blank_start]Portability[blank_end]
4. How much damage it can withstand = [blank_start]Durability[blank_end]
5. How often it works = [blank_start]reliability[blank_end]
6. Price of device = [blank_start]Cost[blank_end]- Acapacity
- Bspeed
- CPortability
- DDurability
- Ereliability
- FCost
Información
- Descripción
- GCSE Computing Test sobre computer science, creado por Neal Khambalikar el 06/11/2022.
- Autor
- Neal Khambalikar
- Idioma
- English
- Visitas
- 1
- Etiquetas
- Valoración
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