1000 bits of data per second (actually 1024 bits per second; in the binary system, everything is based on the power of 2, thus the products are: 0, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, etc.)
Kilobits per second- is a speed indicator measuring the amount in thousands of bits per second data travels. Bps is bits per second, Mbps is millions of bits per second (megabits), Gbps is billions of bits per second (Gigabits).