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OCR GCSE(9-1) IN COMPUTER SCIENCE EXAM LATEST WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS ALREADY GRADED A+ 100%GUARANTEED PASS! What is a computer? - ANSWER>>An electric, PROGRAMMABLE DATA PROCESSING machine.$17.99
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OCR GCSE(9-1) IN COMPUTER SCIENCE EXAM LATEST WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS ALREADY GRADED A+ 100%GUARANTEED PASS! What is a computer? - ANSWER>>An electric, PROGRAMMABLE DATA PROCESSING machine.
OCR GCSE(9-1) IN COMPUTER SCIENCE EXAM
LATEST WITH ACTUAL QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
100%GUARANTEED PASS!
What is a computer? - ANSWER>>An electric, PROGRAMMABLE DATA
PROCESSING machine.
OCR GCSE(9-1) IN COMPUTER SCIENCE EXAM
LATEST WITH ACTUAL QUESTIONS AND CORRECT
VERIFIED ANSWERS ALREADY GRADED A+
100%GUARANTEED PASS!
What is a computer? - ✔✔ANSWER✔✔>>An electric, PROGRAMMABLE DATA
PROCESSING machine.
What is a system? - ✔✔ANSWER✔✔>>A collection of PARTS that work TOGETHER
for a COMMON PURPOSE.
What is a computer system? - ✔✔ANSWER✔✔>>A collection of HARDWARE and
SOFTWARE working together to create a CODED SOLUTION.
It involves a set of inputs being processed to present a set of outputs.
Why are computer systems everywhere? - ✔✔ANSWER✔✔>>Because:
- Versatile
- Small
- Cheap
What is a program? - ✔✔ANSWER✔✔>>A set of INSTRUCTIONS that the computer
carries out to process data.
What is an Input? - ✔✔ANSWER✔✔>>PROVIDES DATA for further processing
What is a process? - ✔✔ANSWER✔✔>>Where the input is MANIPULATED in order to
process meaningful information.
What is an output? - ✔✔ANSWER✔✔>>Where the information is PRESENTED to the
user in a suitable format.
What is a System Boundary? - ✔✔ANSWER✔✔>>A system that is SEPARATEs from
the outside world so it separates what is in a system from what is not.
What is an Interface? - ✔✔ANSWER✔✔>>A device or program enabling a user to
communicate with a computer.
Interconnections between systems.
Give 3 examples of computer input devices - ✔✔ANSWER✔✔>>- Mouse
- Keyboard
- Scanner
, Give 3 examples of computer processes - ✔✔ANSWER✔✔>>- Searching
- Calculations
- Graphing
Give 3 examples of computer output devices - ✔✔ANSWER✔✔>>- Screen
- Speaker
- Projector
LIst reasons of why computer systems are important: - ✔✔ANSWER✔✔>>-
Communication (Emails, Social networks)
-Retail (E-commerce)
- Improved quality in manufacturing - Cheaper manufacturing
- Faster access to information
- Improves quality of life (E.g. Bionics for people without limbs)
- Safety ( Emergency response, guiding aircrafts, monitoring patients)
- Education
- Business
Name 6 types of computer systems - ✔✔ANSWER✔✔>>- General-purpose systems
- Dedicated systems
- Control systems
- Embedded systems
- Expert systems
- Management information systems
What is a general purpose system? - ✔✔ANSWER✔✔>>Designed to perform multiple
tasks- a WIDE VARIETY of purposes. Various applications can loaded.
Give examples of general purpose system. - ✔✔ANSWER✔✔>>Desktops, Laptops,
Smartphones
What are the advantages of general purpose systems? - ✔✔ANSWER✔✔>>- Very
popular
- Cheap
- Well tested
- Wide support (Easy to use)
- Not specific to a particular user (E.g. Microsoft)
- Capable of development into tailor-made software
What are the disadvantages of general purpose systems? - ✔✔ANSWER✔✔>>- Very
basic
- Low quality
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