QC
QUBIT COMPUTECHEngineering Studio
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Production Ready // Version 3.2

Qubit Billing.
Business. Simplified.

Sub-second invoicing. 100% offline resilience. Automated GST e-Way generation. Engineered to keep checkout queues moving at lightning speed even during network blackouts.

High-throughput retail POS terminal in action
High-throughput retail lanes: sub-100ms item scans, ESC/POS thermal receipt printing, and local offline transaction journaling.
TERMINAL T-04 // SUPERMARKET MAIN
STATUS: OFFLINE CACHE SYNCED
ITEM DESCRIPTIONHSNQTYPRICEGST%TOTAL
Organic A2 Cow Milk 1L04012₹75.000%₹150.00
Cold Pressed Virgin Olive Oil 500ml15091₹480.005%₹504.00
Whole Wheat Grain Bread 400g19051₹60.000%₹60.00
SCANNER READY // 84ms LAST DEBOUNCE
ITEMS: 4TOTAL: ₹714.00
TECHNICAL CAPABILITIES & HARDWARE INTEGRATION

Engineered for High-Pressure Counters.

Sub-100ms Hardware Interception

Native keyboard wedge and USB raw barcode scanner hooks bypass typical browser latency. Items appear on the cashier screen with millisecond debounce, enabling cashiers to ring up 40+ products per minute without touch input.

BENCHMARK: 84ms average scan-to-cart latency • 100% hotkey navigation

Offline-First SQLite Journaling

Every transaction, inventory decrement, and customer credit is written directly to a local WAL-mode SQLite database. When internet drops during peak shopping hours, cashiers continue billing at 100% capacity with background sync once restored.

RESILIENCE: Zero cloud blocking • Automatic peer-to-peer conflict resolution

Direct ESC/POS Thermal Print Engine

Bypasses bloated operating system print dialogs. Sends raw hex commands directly over USB, Bluetooth, or Ethernet to 2-inch and 3-inch thermal printers with custom graphic logos, barcode return slips, and dynamic UPI QR payment prompts.

OUTPUT: 0.2s print speed • Auto-cutter & cash drawer kick triggers

Automated GST & E-Way Classification

Automatic HSN code mapping, CGST/SGST/IGST tax splits, and multi-tier pricing. Generates monthly GSTR-1 and GSTR-3B JSON exports in one click, plus real-time E-Way bill generation for wholesale consignments exceeding threshold limits.

COMPLIANCE: 100% Tax Compliant • Direct CA audit report export
DEPLOYMENT MATRIX & SPECIFICATIONS
ARCHITECTURE
Local Engine + Cloud Sync
HARDWARE
All Thermal & Laser Tills
TAX COMPLIANCE
GST, VAT & Surcharges
ACTIVE SITES
20+ Production Outlets

Deploy Qubit Billing in Your Stores

Supports single retail boutiques and multi-branch supermarket chains with live warehouse inventory sync.

Request On-Site Demo