GCE A/L Information & Communication Technology case studies
GCE A/L Information & Communication Technology · Put your knowledge to work in context.
The GCE Advanced Level Information and Communication Technology (A/L ICT) is a subject examination offered in Sri Lanka's General Certificate of Education Advanced Level programme. It is taken by students who have completed Ordinary Level studies and wish to specialise in ICT, often as preparation for university degrees in computing, engineering, or business information systems, or for direct entry into IT-related employment. The GCE A/L Information & Communication Technology case studies are 5 cases and about 5,419 words.
1Bucket Elevator Interlock and a Thermostat Reading That Trips on Cold Mornings
A medium rice mill in Polonnaruwa has automated its bucket elevator with a small microcontroller. Three inputs feed the controller: L, a level probe in the feed hopper (1 = grain present); D, an inspection-door interlock input; and T, a thermostat on the drive motor (1 = winding temperature above 75 °C).
829 words, about 4 min2Denormalised Tuition Register, a Broken NOT IN Query and NULL Payment Amounts
Wisdom Institute, a private tuition centre in Kandy, keeps all registrations in one sheet, AllData, with 1,800 rows and the columns RegNo, StudentName, Phone, ClassCode, ClassName, TeacherName, TeacherPhone, MonthlyFee, PaidMonth and AmountPaid. A row exists for every invoiced month, and AmountPaid is left blank until the student pays.
984 words, about 5 min3VLSM Redesign and One-Way Reachability in a Three-Storey Garment Factory
Kandy Garments runs a three-storey factory in Katunayake with 124 networked devices on one flat IPv4 network, 192.168.20.0/24, all in a single broadcast domain. Device counts are: Design 58, Accounts 26, Production 26, HR 12, and the server room 2 (one file server and one domain controller).
1,180 words, about 6 min4Ransomware in a Diagnostic Laboratory: Backups, Ransom and Patient-Data Leakage
Lanka Care Diagnostics is a private laboratory in Colombo with 60 Windows workstations, one file server and a NAS holding eleven years of patient reports. All staff sign in with a shared account, labuser (password Lab@123, unchanged since 2019), because the lab manager believes per-user logins slow shift changes.
1,231 words, about 6 min5Lab Upgrade Schedule: Critical Path, Crashing Cost and an Impossible Deadline
The ICT department of a provincial school has approval to upgrade its computer laboratory before the new term, which starts 20 working days away. From the planning meeting the project manager recorded: A, gather requirements (3 days); B, order and receive hardware (2 days, after A); C, electrical wiring and air conditioning (5 days, after A); D, network cabling (4 days, after C); E, install and configure hardware (2 days, after B and D); F, install software, image machines and migrate user data (3 days, after E); G, train two teachers (2 days, after F); H, acceptance testing with the IT club (2 days, after F); I, handover to the principal (1 day, after G and H).
1,195 words, about 6 min